Evidence supporting the use of: Hydrolyzed gelatin
For the body system: Nails

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Table of Contents

Synopsis

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

Hydrolyzed gelatin, also known as collagen hydrolysate, has been traditionally used to support nail health based on the idea that its amino acid profile may promote the strength and growth of nails. Scientifically, there are a limited number of studies examining its effectiveness for nail health specifically. A frequently cited small-scale study (Hexsel et al., 2017) found that daily supplementation with hydrolyzed collagen led to increased nail growth and reduced frequency of broken nails in some participants. However, these studies are often limited by small sample sizes, lack of controls, and potential conflicts of interest. The biological rationale hinges on the fact that hydrolyzed gelatin is rich in amino acids such as glycine and proline, which are building blocks of keratin, the primary protein in nails. However, while it is plausible that providing these amino acids could support keratin synthesis, direct evidence that oral supplementation significantly impacts nail structure or strength remains weak. Overall, while there is some emerging scientific interest and a plausible mechanism, the evidence supporting hydrolyzed gelatin for nail health is still preliminary. Most recommendations are based on limited human trials and anecdotal reports rather than large, high-quality clinical studies.

More about Hydrolyzed gelatin
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Other body systems supported by Hydrolyzed gelatin

Gastrointestinal Tract
Hair
Joints
Nails
Skeletal System (Bones)
Skin

Products containing Hydrolyzed gelatin

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