Evidence supporting the use of: Hydroxyproline
For the health condition: Cartilage Damage
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
Hydroxyproline is an amino acid found abundantly in collagen, which is a critical structural protein in cartilage. Its use in supporting or treating cartilage damage is based on the rationale that providing collagen-derived peptides or amino acids may support cartilage repair or slow degeneration. Scientific validation for hydroxyproline’s efficacy comes primarily from studies on collagen hydrolysates, which naturally contain hydroxyproline, rather than isolated hydroxyproline supplementation itself. Some clinical trials and animal studies have shown that collagen hydrolysate supplementation can increase collagen synthesis in cartilage and may help reduce symptoms of osteoarthritis or improve joint health. However, the evidence is modest and sometimes inconsistent, with meta-analyses of randomized controlled trials suggesting only small benefits, if any, for cartilage repair or joint pain. While hydroxyproline is a marker of collagen metabolism and is necessary for collagen stability, there is limited direct evidence that supplemental hydroxyproline alone (as opposed to intact collagen peptides or hydrolysates) has a therapeutic effect on cartilage damage in humans. Most benefits observed are attributed to a combination of amino acids and peptides in collagen supplements, not hydroxyproline in isolation. Therefore, while there is some scientific rationale and limited supporting data, the current evidence base is not strong, and more rigorous clinical trials are needed to confirm the efficacy of hydroxyproline supplementation for cartilage damage.
Other ingredients used for Cartilage Damage
amino acidsanthocyanins
Indian frankincense
bovine gelatin
bromelain
cartilage
chondroitin
collagen
turmeric
curcumin
fish oil
gelatin
ginger
glucosamine
green lipped mussel
green tea
hyaluronic acid
l-proline
methylsulfonylmethane (MSM)
n-acetyl-glucosamine
omega-3 fatty acids
pomegranate
quercetin
resveratrol
silicon
vitamin C
zinc
Animal Tissue
Bone Protein
bovine cartilage / glycosaminoglycan
Chymopapain
Cetylated Fatty Acids
Connective tissue growth factor
Drynaria
fibroblast growth factor
Glycosaminoglycans
Other health conditions supported by hydroxyproline
Cartilage DamageLigaments (torn or injured)
Surgery (healing from)
Wounds and Sores