Bee hive

Other Names

Apiary productsApiceuticalsApiculture productsApis mellifera hiveApis mellifera L. (hive)Apitherapy productsBee colony productsBeehiveHive productsHive-derived productsHoneybee colony productsHoneybee hive

Synopsis

Beehive Products as Dietary Supplements and Natural Ingredients: A Comprehensive Reference

Overview and Scope

The term beehive products — used collectively in commerce and the apitherapy literature — encompasses a group of biologically distinct substances produced within or by the honeybee (Apis mellifera L. and related Apis spp.) colony. These products include beeswax, honey, royal jelly, pollen, and propolis. They are increasingly used in food, nutraceutical, and cosmetic contexts. The field of medicine that employs these substances therapeutically is known as apitherapy. Apitherapy is a branch of natural, or alternative, medicine that uses beehive products — such as beeswax, honey, royal jelly, pollen, and propolis — to treat more or less serious conditions.

This article treats each principal beehive product individually, covering identity, historical use, chemical composition, mechanisms of action, clinical evidence, dosage forms used in studies, and safety considerations.

Part I: Propolis (Bee Glue)

1.1 Identity and Natural Source

Propolis is produced by honeybees and is a unique resin collected from tree buds, sap flows, and other plant exudates, which is then mixed with bee enzymes, beeswax, and secretions. The major species of trees known to contribute to the production of propolis are coniferous: pine, fir, spruce, some poplars, alder, willow, horse chestnut, birch, plum, ash, and oak. The word "propolis" derives from Greek: the word "propolis" comes from the Greek and is made up of the words "pro" (meaning "before") and "polis" (meaning "city").

The composition of propolis varies depending on plant source, season of harvest, geography, type of bee flora, climate, and honeybee species at the site of collection. To date, over 1,000 compounds have been identified in propolis, spanning various chemical classes, including phenolic acids, flavonoids, terpenes, and alkaloids.

Common commercial forms include:

Raw or crude propolis (solid, unprocessed)
Ethanolic extract of propolis (EEP) — the most widely studied form in laboratory and clinical research
Gels, creams, throat sprays, cough syrups, and mouthwashes
Oral capsules and tablets
Topical solutions and spray formulations

1.2 Traditional and Historical Use

The ancient Greeks, Romans, and Egyptians were aware of the healing properties of propolis and made extensive use of it as a medicine. In the Middle Ages, propolis was not a very popular topic and its use in mainstream medicine disappeared. However, the knowledge of medicinal properties of propolis survived in traditional folk medicine.

The traditional use of propolis is known since 300 B.C. The Egyptians worshiped the bee and used propolis in the mummification process. It was also well known to the priests who, at that time, monopolized medicine and chemistry.

Medicinal properties of propolis were probably identified by Greek and Roman doctors and scientists such as Aristoteles, Pliny the Elder, Galen, Cornelius Celsus, and Dioscorides. Aristotle, among others, mentions propolis in his "History of Animals" and considers it to be a remedy against all skin ailments, wounds, and infections. Propolis was also known to the Incas, where it was used for febrile infections. Propolis has been used in France since the eighteenth century, but propolis was found to be particularly useful during the Boer War, around 1900, for disinfecting wounds.

The interest in propolis returned in Europe together with the Renaissance theory of ad fontes. Temples kept bees in order to satisfy the desire of the gods for honey and for the production of medicines and ointments. Propolis has been often called "Russian penicillin."

After the First and Second World War, its use grew even more, as did the studies to identify its chemical and pharmacological features.

1.3 Key Constituents and Mechanisms of Action

Most of the common bioactive compounds responsible for the biological and pharmaceutical properties of propolis are apigenin, chrysin, galangin, luteolin, kaempferol, pinobanksin, pinocembrin, quercetin, caffeic acid, cinnamic acid, p-coumaric acid, ferulic acid, artepillin C, CAPE (caffeic acid phenethyl ester), and coumarin.

Comprising a complex mixture of resins, waxes, essential oils, and pollen, propolis exhibits significant antimicrobial, antioxidant, anti-inflammatory, immunomodulatory, and anticancer properties.

Mechanistically, at the molecular level:

Propolis exerts antibacterial effects through multiple pathways: inhibiting bacterial cell wall synthesis, disrupting membrane integrity (causing ion leakage and ATP depletion), and blocking nucleic acid synthesis by targeting DNA gyrase and topoisomerase II.
It also inhibits biofilm formation. Flavonoids interfere with bacterial enzymes and DNA synthesis, while artepillin C modulates inflammatory pathways, such as NF-κB, reducing prostaglandin and nitric oxide production.
Propolis demonstrates synergistic effects with conventional antibiotics, enhancing their efficacy against drug-resistant strains by increasing membrane permeability and inhibiting resistance enzymes.

The inherent chemical variability of propolis presents several challenges to its standardization and quality control. Its chemical composition varies by geographic origin, botanical source, and bee species, complicating standardization.

1.4 Scientific Evidence by Health Area

1.4.1 Oral Health and Dentistry

Propolis use as a therapeutic agent in idiopathic recurrent aphthous stomatitis (RAS), in otherwise healthy individuals, has attracted scientific interest owing to its anti-inflammatory, antioxidant, immunomodulatory, and wound-healing properties. Several propolis-based products have been tested clinically in humans, including mouthwash, solutions for topical application, spray, mucoadhesive film, paste, and oral capsules.

Ozan et al. and Arsalan et al. concluded that propolis mouthwashes were not as effective as chlorhexidine mouthwashes in caries prevention. Research has proven that mouthrinses containing propolis in an alcohol aqueous solution heal intra-buccal surgical wounds; therefore, propolis plays a role in epithelial repair after tooth extraction and exerts anti-inflammatory effect on orofacial pain. Propolis in toothpaste was seen to greatly improve oral health and showed inhibitory effect on dental plaque formation.

Evidence strength: Most of the work on propolis is in vitro or animal studies. There is a need for human clinical trials to get the best benefit out of this natural ingredient. Existing RCTs are small in size and heterogeneous in formulation.

1.4.2 Wound Healing and Diabetic Foot Ulcers

A randomized placebo-controlled clinical trial examined propolis as an adjuvant in diabetic foot wound healing. Randomized subjects received ambulatory healing treatment for diabetes foot wounds with propolis spray (3%), which was applied to cover the entire wound surface each time it was dressed from week 0 until cicatrization or 8 weeks as a maximum. The study comprised 31 subjects with type 2 diabetes. Propolis promoted a reduction of the wound's area by an average of 4 cm², related to an increase in the connective tissue deposit compared to the control. Propolis also increased the glutathione (GSH) and GSH/GSSG ratio (p < 0.02), depleted tumor necrosis factor-α, and increased interleukin-10 levels.

Evidence strength: Preliminary; the study population was small (n=31), and larger, multi-center trials are needed.

1.4.3 Antidiabetic and Glycemic Effects

A double-blind, randomized controlled clinical trial evaluated propolis supplementation in 60 patients with type 2 diabetes. Patients were randomly assigned to receive Iranian propolis (1,500 mg/day for 8 weeks) (n=30) and placebo (n=30). The daily intake of 1,500 mg of bee propolis supplement for 8 weeks resulted in improvement of glycemic status, reduction in insulin resistance, and improvement of inflammatory condition in patients with type 2 diabetes.

A separate double-blind, placebo-controlled clinical trial (n=67) assessed effects on lipid metabolism. Eligible subjects were randomized to a propolis group (n=35) and placebo (n=32). All subjects were evaluated at 0 (baseline), 45, and 90 days. In the propolis group, increases in HDL-cholesterol went from 53.9 ± 11.9 to 65.8 ± 16.7 mg/dL (p < 0.001) from baseline to 90 days.

Evidence strength: Modest; results are promising but trial sizes are small, populations vary internationally, and propolis compositions between trials differ substantially.

1.4.4 Anti-inflammatory and Antioxidant Effects

A 2025 systematic review and meta-analysis of RCTs examined propolis's effects on inflammatory and oxidative stress markers. In total, 27 trials with 29 treatment arms were eligible for inclusion. Propolis supplementation appears effective in reducing inflammation and oxidative stress by enhancing antioxidant capacity and reducing specific inflammatory markers. However, variations in study designs, dosages, and participant characteristics contribute to the heterogeneity of results. Further well-designed RCTs are needed to confirm these findings and determine the optimal dosage and long-term effects.

Evidence strength: Although a large number of trials have observed the anti-inflammatory properties of propolis, the currently available research remains controversial regarding its beneficial health effects.

1.4.5 Respiratory Health

A phase two randomized, double-blind, controlled clinical trial examined propolis effects on moderate persistent asthma. Fifty-two subjects aged 44.6±18.5 years old with moderate asthma and FEV1 60–79% of predicted were enrolled. Subjects were randomly allocated to receive either propolis (75 mg three times a day) or a matched placebo for one month. Clinical findings significantly improved after treatment. However, the authors noted that in a murine model of asthma, propolis showed effective suppression of acute immunological and allergic reaction besides chronic phenomena causing remodeling of asthma, though its efficacy to treat asthma was not widely evaluated in human beings.

Evidence strength: Limited to a single small trial; mechanistic data are largely preclinical.

1.4.6 Overall Assessment of Clinical Evidence for Propolis

There is certainly an interest in the health properties of propolis and a subsequent growth in publication history since 1990; however, a need for more clinical trials is sorely needed to confirm the value of propolis to a specific population. While a greater number of human studies are warranted, certainly the preclinical data supports a role in antioxidant and anti-inflammatory activity of propolis which supports a reduction in various chronic diseases including heart disease, diabetes, hypertension, and neuronal degenerative disease such as Alzheimer's.

1.5 Dosage Forms Reported in Studies

Iranian propolis: 1,500 mg/day orally for 8 weeks (type 2 diabetes RCT)
75 mg three times a day (225 mg/day total) for one month (asthma RCT)
3% propolis spray applied topically to wound surfaces (diabetic foot ulcer RCT)
Mouthwash, gel, and mucoadhesive film formulations at varying concentrations used in oral health RCTs

Part II: Bee Pollen

2.1 Identity and Natural Source

Bee pollen is a combination of plant pollen and honeybee secretions and nectar. It is collected by foraging worker bees from flowering plants, packed into pellets with nectar and bee secretions, and transported back to the hive as a primary protein source for the colony. Bee pollen exhibits significant variations in its macro- and microelement composition, determined by factors such as floral origins, geographical location, soil type, and climate conditions.

Commercial forms include:

Raw dried pollen granules
Encapsulated pollen powder (freeze-dried or air-dried)
Aqueous or ethanolic pollen extracts
Incorporated into functional foods and nutraceutical blends

2.2 Traditional and Historical Use

The Bible and ancient Egyptian texts are documented proof of its use in public health. Egyptian papyri describe the pollen as a "life-giving dust," a surprising intuition if we think about what modern science has since confirmed about its nutritional and beneficial properties. Its extensive biological effects have been known and exploited since ancient times.

2.3 Key Constituents and Chemical Composition

Bee pollen has a complex chemical composition, comprising carbohydrates, proteins, amino acids, lipids, vitamins, minerals, and bioactive compounds like flavonoids, phenolic acids, and enzymes.

Quantitatively, based on a systematic review of over 100 studies: bee pollen contains an average of 54.22% carbohydrates, 21.30% proteins, 5.31% lipids, 8.75% fibre, and 2.91% ash. Mean glucose content is 13.41 g/100 g; fructose 15.36 g/100 g; sucrose 4.25 g/100 g; and potassium 4,951.61 mg/kg.

Bee pollen contains life-essential proteins, making up an average of 22.7%, and essential amino acids such as isoleucine, lysine, threonine, histidine, leucine, valine, phenylalanine, methionine, and tryptophan.

Since more than 70% of bee pollen composition is active (proteins, carbohydrates, lipids/fatty acids, phenolic compounds, and vitamins), researchers have demonstrated that pollen can boost protective mechanisms against skin aging (polyphenols, vitamin E, C), skin dryness (sugars and fatty acids), ultraviolet radiation (carotenoids), oxidative damage (polyphenols), and inflammation and melanogenesis.

2.4 Biological Activities and Mechanisms

Recent research has unraveled a multitude of biological activities associated with bee pollen, ranging from antioxidant, anti-inflammatory, antimicrobial, and antifungal properties to potential antiviral and anticancer applications.

Bee pollen demonstrates a series of actions such as antifungal, antimicrobial, antiviral, anti-inflammatory, hepatoprotective, anticancer, immunostimulating, and local analgesic activities.

The latest evidence has shown that phenolic compounds can enhance the absorption of nutrients, lipid metabolism, and weight loss. Bee pollen is rich in phenolic compounds that could play a crucial role in avoiding obesity and its secondary health complications.

2.5 Scientific Evidence

Contemporary scientific investigations have initiated the revelation of bee pollen's potential health benefits. However, human clinical trial data remain limited and largely preliminary. Much of the evidence base consists of in vitro studies, animal models, and small pilot human studies. The studies on the metabolism of active natural plant metabolites from bee pollen after consumption, as well as the food safety of bee pollen, are both unsatisfactory. Comprehending the extensive repertoire of biological properties across various pollen sources remains challenging.

Evidence strength overall: Preliminary to moderate for antioxidant and nutritional effects; largely preclinical for anti-inflammatory, antimicrobial, and anticancer claims.

Part III: Royal Jelly

3.1 Identity and Natural Source

Royal jelly is a milk-like secretion from the mandibular glands of worker bees that is used to feed larvae of workers and drones and, when given in larger amounts and for extended periods, for feeding and development of queen bees (fertile females). Royal jelly, a viscous jelly-like substance, is produced by the mandibular and hypopharyngeal glands of honeybees (Apis mellifera).

Commercial forms include:

Fresh royal jelly (refrigerated or frozen)
Lyophilized (freeze-dried) royal jelly powder, in capsules or tablets
Enzyme-treated royal jelly (eRJ), used in some clinical trials
Topical cosmetic preparations (creams, serums)

3.2 Traditional and Historical Use

In China, the therapeutic use of honey has been documented for approximately 5,000 years, while the sacred texts of the Indian tradition, the Sanskrit Vedas, indicate honey as a remedy for numerous ailments. Royal jelly has long been used in East Asian traditional medicine as a tonic for vitality and longevity, and was traditionally consumed by royalty and the privileged classes in China and Japan. Due to its resemblance to estrogens, royal jelly is widely used by women in order to relieve and treat menopause, as well as aging-related diseases.

3.3 Key Constituents and Mechanisms of Action

Royal jelly is a mixture of important compounds, such as proteins, vitamins, lipids, minerals, hormones, neurotransmitters, flavonoids, and polyphenols, that underlie its remarkable biological and therapeutic activities. Various bioactive molecules like 10-hydroxy-2-decenoic acid (10-HDA), antibacterial protein, apisin, the major royal jelly proteins (MRJPs), and specific peptides such as apisimin, royalisin, royalactin, apidaecin, defensin-1, and jelleins are characteristic ingredients of royal jelly.

Royal jelly is composed of water, proteins, carbohydrates, and lipids, rich in bioactive components with therapeutic properties, such as free fatty acids, mainly 10-hydroxy-trans-2-decenoic acid (10-H2DA) and 10-hydroxydecanoic acid (10-HDA), and major royal jelly proteins (MRJPs), as well as flavonoids, most flavones and flavonols, hormones, vitamins, and minerals.

Quality and standardization: 10-HDA is the main criterion for determining royal jelly quality and freshness. Based on the standards of the International Organization for Standardization (ISO), the total amount of 10-HDA should be more than 1.4% for pure royal jelly in order to meet quality control parameters.

Mechanistically, 10-HDA exhibits multiple modes of action:

The production of pro-inflammatory cytokines, interleukin (IL)-8, IL-1β, and TNF-α in WiDr cells was modulated by 10-HDA. IL-8 was dramatically declined by 10-HDA at 3 mM, while IL-1β and TNF-α were significantly decreased. 10-HDA increased IL-1ra in a dose-dependent manner. NF-κB was reduced after 10-HDA treatment.
10-HDA acted as a potent bactericide against animal- or human-specific pathogens, including Staphylococcus aureus, Streptococcus alactolyticus, Staphylococcus intermedius B, Staphylococcus xylosus, Salmonella choleraesuis, Vibrio parahaemolyticus, and Escherichia coli (hemolytic).

Royal jelly competes for connection of 17 beta-estradiol to the human estrogen receptor alpha and beta but acts weaker than phytoestrogens and diethylstilbestrol. Studies related to gene expression showed that 0.1–1 mg/ml royal jelly activates estrogen receptors.

3.4 Scientific Evidence by Health Area

3.4.1 Menopausal Symptoms

A randomized, placebo-controlled clinical trial enrolled 42 healthy Japanese postmenopausal women. The subjects were randomized to oral treatment with either 800 mg of protease-digested lyophilized powder of royal jelly (enzyme-treated RJ) or placebo (800 mg of dextrin) daily for 12 weeks. The level of menopausal symptoms was evaluated every 4 weeks. There were significant differences related to the anxiety score (P = 0.046) and backache and low back pain score (P = 0.040) between the 800 mg/day enzyme-treated royal jelly and placebo-treated groups after 12 weeks of administration. No side effects were observed in either group. This study demonstrates that enzyme-treated royal jelly supplementation with doses of 800 mg/day is effective in relieving menopausal symptoms such as anxiety, backache, and low back pain in Japanese postmenopausal women.

A separate randomized controlled trial examined genitourinary symptoms specifically. Eligible women were randomly assigned to receive either daily 1 g of oral royal jelly or placebo for 8 weeks. Although the intervention group's bladder complications improved slightly after eight weeks of royal jelly treatment compared to the control group (p = 0.04), there were no significant changes in vaginal dryness, sexual problems, or total urogenital score. The within-group changes also showed no differences in urogenital symptoms. A daily dose of 1 g royal jelly taken orally for 8 weeks did not alleviate menopausal genitourinary syndrome. To make more reliable decisions about the use and safety of royal jelly in the future, different doses of royal jelly and longer trials are required.

Clinical studies showed that the oral administration of royal jelly (1 g/day) is able to decrease the severity of the premenstrual syndrome and to improve the quality of life in reproductive-aged women.

Evidence strength: Mixed. Some benefit has been observed in smaller RCTs for specific menopausal symptoms (anxiety, musculoskeletal pain), but results for genitourinary symptoms have been negative. There is only a small amount of human clinical trials, and the main majority of the investigations were realized on ovariectomized animal models.

3.4.2 Neuroprotective Effects

In animal models of aging and Alzheimer's disease (AD), royal jelly was able to enhance learning and memory retention, as well as prevent and treat cognitive deficits. In preclinical studies, in animal models and in cell lines, royal jelly, enzyme-treated royal jelly (eRJ), 10-HDA, royal jelly peptides, and MRJPs were effective against AD pathology by interfering with protein misfolding, amyloid synthesis, and amyloid clearance. Furthermore, royal jelly promoted neuronal survival and functioning by targeting inflammation, oxidative stress, mitochondrial dysfunction, disturbed proteostasis, amyloid β (Aβ) toxicity, Ca-mediated excitotoxicity, and bioenergetic failure.

Evidence strength: Preclinical only; no established human clinical trial evidence for neurodegenerative disease.

3.4.3 Anti-inflammatory Effects and Multiple Sclerosis

Studies found that royal jelly and 10-HDA prevented the development of experimental autoimmune encephalomyelitis (EAE, an animal MS model). The treated groups exhibited reduced demyelination, decreased leukocyte infiltration in the central nervous system, and dose-dependent inhibition of inflammatory mediators. Royal jelly and 10-HDA were found to modulate the immune response by primarily affecting the polarization of Th17 and Th1 cells. These findings highlight the potential of royal jelly as a therapeutic option, but further research and clinical trials are necessary to fully understand the underlying mechanisms and optimize clinical application.

Evidence strength: Animal/in vitro only for multiple sclerosis and inflammatory disease indications; not yet established in human clinical trials.

3.4.4 General Pharmacological Profile

Royal jelly shows numerous physiological and pharmacological properties, including vasodilatory, hypotensive, antihypercholesterolaemic, antidiabetic, immunomodulatory, anti-inflammatory, antioxidant, anti-aging, neuroprotective, antimicrobial, estrogenic, anti-allergic, anti-osteoporotic, and anti-tumor effects. In clinical trials, royal jelly was effective against high blood pressure, diabetes, multiple sclerosis, infertility, and menopausal symptoms. However, many of these clinical trials cited are small, single-center, and have not been replicated at larger scale.

3.5 Dosage Forms Reported in Studies

1 g/day orally (premenstrual syndrome, menopausal quality-of-life study)
800 mg/day of protease-digested lyophilized royal jelly powder for 12 weeks (menopausal symptom RCT)
1 g/day oral lyophilized royal jelly for 8 weeks (genitourinary syndrome RCT)

Part IV: Beeswax

4.1 Identity and Natural Source

Honeybees (Apis mellifera L.) are among the most economically important insects. Beeswax is the second most important bee product after honey. It is secreted by young adult worker bees from wax-producing glands on their abdomens and is used to construct the honeycomb cells of the hive.

Beeswax is generally yellow or yellow-brown, has a melting point of 61–65°C, and is made of over 300 various organic compounds. Beeswax is roughly 35 to 45 percent wax esters, 12 to 16 percent hydrocarbons, and 12 to 14 percent free fatty acids, according to a chemical assessment by the Food and Agriculture Organization.

Commercial grades include raw beeswax, cosmetic-grade, food-grade, and pharmaceutical-grade. Food-grade and pharmaceutical-grade beeswax goes through additional filtration and purification to meet stricter purity standards. In the EU, food-grade beeswax must comply with the E901 specification, which sets limits on impurities.

4.2 Traditional and Historical Use

Beeswax has been used since antiquity as a sealant, waterproofing agent, candle material, writing tablet coating, and medicinal base. In traditional medicine it formed the base of ointments and plasters used across European, Asian, and African cultures. Ancient Egyptian practitioners used it in wound dressings and as a component of embalming preparations.

4.3 Key Constituents and Bioactive Compounds

The nutraceutical and pharmaceutical property of beeswax is justified by the presence of bioactive policosanols, namely tetracosanol, triacontanol, hexacosanol, dotriacontanol, and octacosanol, which have the potential to minimize cholesterol content. Flavonoids, such as galangin, chrysin, tectochrysin, pinobanksin, and pinocembrin, also contribute to the properties of beeswax.

Its commercial importance is due to its antimicrobial, antioxidant, anti-inflammatory, and antiseptic as well as regenerative properties.

4.4 Applications and Scientific Evidence

Beeswax is used in the pharmaceutical industry as a thickener, retardant, releaser, drug carrier, and binder. The antioxidant and antibacterial properties of beeswax are responsible for the increase in skin cell cytokines. Beeswax can be used as a carrier for delivering doxorubicin and 4-nitrochalcone-based drugs that exert antitumor properties and minimize the effect of chemotherapy.

Listed as food additive E901, beeswax is used as a glazing agent on fresh and frozen fruit, as a release agent in bakery products, as a coating on candy, and as a base ingredient in chewing gum. The waxy sheen on apples and citrus fruits at the store often comes from beeswax or a similar food-grade wax.

The World Health Organization's Joint Expert Committee on Food Additives evaluated beeswax and assigned it no specific acceptable daily intake limit, concluding there is "no safety concern at the predicted dietary exposure" of less than 650 milligrams per person per day. That assessment was based on beeswax's long history of use and the lack of toxicity observed with its major components.

Evidence strength: Beeswax as a direct-consumption dietary supplement has very limited clinical trial evidence. Its main scientific validation relates to regulatory approval as a safe food additive and its well-established pharmaceutical excipient use.

Part V: Body Systems and Health Areas Associated with Beehive Products

Propolis exhibits efficacy in treating autoimmune diseases, diabetes, burns, wounds, gynecological issues, as well as conditions pertaining to the laryngological, dermatological, neurodegenerative, gastrointestinal, and respiratory tracts. Moreover, its applications extend to cardiovascular disorders, with documented antimicrobial, anticancer, hepatoprotective, anti-inflammatory, antiviral, and antioxidant activities.

The body systems associated with beehive products collectively include:

Immune system: Immunomodulatory effects demonstrated preclinically for propolis, royal jelly, and bee pollen; modest clinical validation for propolis.
Integumentary system (skin and wound healing): Clinical evidence exists for propolis in wound healing (diabetic foot ulcers); royal jelly and bee pollen are studied cosmetically.
Oral cavity and dentistry: Multiple human studies for propolis in dental plaque, aphthous stomatitis, and post-extraction wound care.
Endocrine and metabolic system: Propolis studied in glycemic control and lipid metabolism; royal jelly studied in estrogen-related conditions and postmenopausal health.
Cardiovascular system: Preclinical data on cholesterol modulation; limited human evidence.
Nervous system: Preclinical evidence for royal jelly in neurodegeneration; no established human trial data.
Reproductive system: Royal jelly studied for menopausal symptom management; mixed results in RCTs.
Respiratory system: Small propolis trial in asthma; largely preclinical evidence.
Gastrointestinal system: Royal jelly studied in colitis in animal models; human data lacking.

Part VI: Safety Considerations and Known Interactions

6.1 Allergic Reactions — All Beehive Products

Honeybee products can provoke allergic reactions ranging from localised dermatitis to life-threatening, systemic anaphylaxis. Although relatively rarely, honeybee products may trigger allergic reactions, including anaphylactic shock.

6.2 Propolis-Specific Safety

Contact dermatitis from propolis is a well-known complication of beekeeping and can occur with topical and oral administration of propolis. Allergic reactions including angioedema and anaphylaxis from commercial sources of propolis have been reported. The allergic reactions are likely due to plant flavonoid aglycones.

In most clinical trials, adverse event rates have not been mentioned, but propolis is reported to be well tolerated. Propolis may contain contaminants, insect parts, and allergens from the environment.

6.3 Royal Jelly-Specific Safety

Symptoms from royal jelly reactions range from mild to severe and include rhinitis, eczema, contact dermatitis, urticaria, conjunctivitis, hemorrhagic colitis, acute asthma, bronchospasm, and fatal anaphylaxis.

Almost all patients who have had allergic reactions to royal jelly had a history of asthma, allergic rhinitis, eczema, or atopy. Therefore, atopic individuals might have an increased risk of sensitization to royal jelly and to develop allergic reactions to royal jelly.

In some cases, allergic reactions are seen after the first intake of royal jelly, suggesting the existence of allergens cross-reactive with royal jelly.

Regarding drug interactions: royal jelly might increase the effects of warfarin. Taking royal jelly with warfarin might increase the risk of bruising or bleeding.

6.4 Beeswax-Specific Safety

The lipophilic nature of beeswax allows it to accumulate residues from lipophilic acaricides and environmental pesticides, creating a risk of contamination transfer when the wax is recycled for use in pharmaceutical or food industries. Studies have detected multiple pesticide residues (e.g., acaricides and insecticides) in beeswax at levels from trace amounts to 218.57 µg/kg, highlighting their persistence, accumulation, and potential for chronic exposure.

Liver injury attributable to bee products has not been reported. In clinical trials of beeswax and propolis as therapy of diabetes, obesity, and cancer, side effects were rarely mentioned and ALT elevations and hepatotoxicity were not reported. Despite their availability and widespread use as alternative therapies, there have been no published reports of liver injury attributed to bee products. Likelihood score: E (unlikely cause of clinically apparent liver injury).

6.5 Standardization Challenges Relevant to Safety

The therapeutic application of propolis faces key challenges. Its chemical composition varies by geographic origin, botanical source, and bee species, complicating standardization. Extraction methods also affect the yield and potency of active compounds. Clinical data are limited, especially regarding long-term safety in immunocompromised individuals and risks of allergic reactions.

Furthermore, the pharmacokinetics and molecular targets of propolis remain incompletely understood, underscoring the need for rigorous research to standardize formulations and define effective and safe therapeutic applications.

References

Health Conditions

Health conditions that Bee hive may help support.

No conditions available.

Body Systems

Body systems that Bee hive may help support.

No body systems available.