Relationship: Hair and l-methionine

Evidence supporting the use of: L-methionine
For the body system: Hair

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

L-methionine is an essential amino acid that plays a role in various physiological processes, including the synthesis of proteins and other amino acids. Its potential use in supporting the hair body system is primarily based on its role as a sulfur donor, which is important for the synthesis of keratin—the primary structural protein in hair. Some studies have investigated the role of methionine, along with other amino acids such as cysteine, in supporting hair growth and structure. However, direct scientific evidence specifically validating the efficacy of L-methionine supplementation for improving hair growth or preventing hair loss in healthy individuals is limited and of low quality. Most of the available evidence comes from in vitro studies, animal models, or small-scale human trials that often use methionine as part of a combination therapy with other nutrients. While deficiencies in essential amino acids, including methionine, can contribute to hair health problems, there is insufficient robust clinical data to support the use of L-methionine supplements for hair health in the general population. Therefore, the scientific validation for this use is weak, and more well-designed human studies are needed to establish its efficacy.

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Other ingredients that support Hair

amino acids
ashwagandha
bamboo
biotin
bovine gelatin
ceramides
collagen
copper
fish oil
fish protein
gamma linolenic acid (GLA)
gelatin
ginseng
gooseberry
gotu kola
horsetail
iron
kelp
l-cysteine
l-cystine
l-lysine
l-methionine
l-proline
methylsulfonylmethane (MSM)
nettle
omega-3 fatty acids
omega-6 fatty acids
PABA (para-aminobenzoic acid)
pantothenic acid (vitamin B5)
pollen
polypeptide complex (proprietary)
protein
pumpkin
riboflavin (vitamin B2)
rosemary
sage
saw palmetto
selenium
silicon
keratin
vitamin A
vitamin B
vitamin B12
vitamin B6
vitamin C
vitamin D
vitamin E
seaweed
zinc
zinc
lingzhi
sunflower
trace minerals
wheat germ
herbal blend (proprietary)
algae
bladderwrack
Argan nut oil
Alkanna
Animal protein
Black Seed
Babchi
Beef
Beef liver
Bovine Protein
Curry leaf
Cetearyl alcohol
Chinese Fleeceflower
Cymbopogon Martini
Castile Soap
Cystine
DL-Methionine
Drynaria
Egg
Eclipta
Emu Oil
Egg protein
Ferritin
Fish
Fatty acids
Molasses
Quinoa Protein
Silk protein

Other body systems supported by l-methionine

Hair
Hepatic System
Liver
Nails
Skin

Products containing l-methionine

Health Concerns

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Evidence supporting the use of: L-methionine
For the body system: Hair

Table of Contents

Synopsis

Other ingredients that support Hair

Other body systems supported by l-methionine

Products containing l-methionine

Health Concerns

Brands

Evidence supporting the use of: L-methionineFor the body system: Hair

Table of Contents

Synopsis

Other ingredients that support Hair

Other body systems supported by l-methionine

Products containing l-methionine

Evidence supporting the use of: L-methionine
For the body system: Hair