Evidence supporting the use of: Hydrolyzed beef collagen
For the body system: Hair

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Synopsis

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

Hydrolyzed beef collagen is commonly marketed as a supplement to support hair health, largely due to its rich content of amino acids—especially glycine, proline, and hydroxyproline—which are structural components of keratin, the primary protein in hair. Scientifically, there is some rationale for this use: collagen peptides can provide building blocks necessary for the synthesis of hair proteins. However, direct high-quality clinical evidence specifically linking hydrolyzed beef collagen supplementation to improved hair growth or quality in humans is limited. Most available studies focus on skin health, with only a handful addressing hair, often with small sample sizes or in combination with other ingredients, making it difficult to isolate the effects of collagen alone. A few studies suggest that collagen supplementation may help improve dermal health and, by extension, create a healthier scalp environment, which could indirectly support hair health. Animal studies and in vitro data support the idea that collagen-derived peptides can influence extracellular matrix production, which is pertinent to hair follicle function. Nevertheless, randomized controlled trials in humans are lacking, and claims about hair growth or thickness are not strongly substantiated by the existing literature. In sum, scientific support exists at a basic mechanistic level, but robust clinical evidence is currently insufficient, warranting a moderate-low score of 2 out of 5 for the strength of evidence supporting hydrolyzed beef collagen's use for hair health.

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Other body systems supported by Hydrolyzed beef collagen

Gastrointestinal Tract
Hair
Joints
Nails
Skeletal System (Bones)
Skin

Products containing Hydrolyzed beef collagen

We currently have no products on Vitabase that contain this ingredient.