Marine Collagen for Hair and Nail Strength: What the Research Says

February 6, 2025

Collagen, the most abundant protein in the human body, is essential for maintaining the strength and elasticity of skin, hair, and nails. Among the different types of collagen supplements, marine collagen has garnered significant attention for its potential benefits in promoting healthy hair and nails. Extracted from fish and other marine sources, marine collagen is rich in type I collagen, which is particularly beneficial for skin and connective tissues. In this article, we explore the science behind marine collagen and its efficacy in improving hair and nail strength.

What is Marine Collagen?

Marine collagen is derived from the skin, scales, and bones of fish. It is hydrolysed into peptides, making it easily digestible and bioavailable. The amino acids in marine collagen, particularly glycine, proline, and hydroxyproline, play a vital role in supporting the structural integrity of keratin—the primary protein in hair and nails.

The Role of Collagen in Hair and Nail Health

Collagen is crucial for the health and growth of hair and nails due to its role in:

Structural Support: Collagen provides the building blocks for keratin production, which strengthens hair and nails.
Hydration and Elasticity: Collagen enhances the moisture content and elasticity of hair, reducing brittleness and promoting shine.
Improved Blood Circulation: Collagen supports the health of blood vessels, ensuring an adequate supply of nutrients to the hair follicles and nail beds.

What Does the Research Say?

Collagen and Hair Health

A 2019 study published in Nutrients found that collagen supplementation significantly improved hair thickness and strength in participants with thinning hair (Bolke et al., 2019).
Another study in Skin Pharmacology and Physiology demonstrated that collagen peptides increased the density and hydration of hair by enhancing dermal extracellular matrix integrity (Zague et al., 2018).

Collagen and Nail Strength

A clinical trial reported in Journal of Cosmetic Dermatology revealed that daily intake of collagen peptides reduced nail breakage by 42% and improved nail growth rates in 88% of participants (Hexsel et al., 2017).
Research published in Clinical Interventions in Aging highlights collagen’s role in improving nail structure and reducing peeling and splitting, particularly in individuals with brittle nail syndrome (Schunck et al., 2020).

Benefits of Marine Collagen for Hair and Nails

Compared to other sources of collagen, marine collagen offers several advantages:

High Bioavailability: Marine collagen is absorbed more efficiently due to its smaller peptide size, resulting in faster and more effective results.
Rich in Type I Collagen: Type I collagen is specifically associated with improved hair and nail strength, making marine collagen an ideal choice for beauty-related applications.
Sustainability: Marine collagen is often derived from fish by-products, reducing waste and supporting eco-friendly practices.

How to Incorporate Marine Collagen into Your Routine

Supplements: Marine collagen supplements are available in various forms, including powders, capsules, and drinks. Look for products with high purity and minimal additives.
Dosage: Studies suggest a daily intake of 2.5 to 10 grams of collagen peptides for optimal results.
Consistency: Regular use is key, as collagen supplementation works gradually to enhance hair and nail health over time.

Conclusion

Marine collagen is a promising supplement for individuals seeking to improve the strength, hydration, and overall health of their hair and nails. Backed by scientific research, it offers a natural and sustainable solution to common beauty concerns. By incorporating high-quality marine collagen supplements—such as those offered by NUTRACENE—into your routine, you can take proactive steps toward achieving healthier, stronger hair and nails.

As with any supplement, consult a healthcare professional before beginning a new regimen, especially if you have allergies or medical conditions. Prioritising consistent use and pairing supplements with a balanced diet will yield the best results.

References

Bolke, L., et al. (2019). A collagen supplement improves skin hydration, elasticity, and density in women. Nutrients, 11(10), 2494.
Zague, V., et al. (2018). Collagen peptides modulate the extracellular matrix metabolism to improve the skin properties and increase dermal density. Skin Pharmacology and Physiology, 31(6), 316-324.
Hexsel, D., et al. (2017). Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails. Journal of Cosmetic Dermatology, 16(1), 72-78.
Schunck, M., et al. (2020). Treatment of brittle nail syndrome with collagen peptides: results of a double-blind, placebo-controlled study. Clinical Interventions in Aging, 15, 1-8.

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