Can Biotin and Collagen Supplements Improve ‌Brittle Nails?

‍ Updated June 11, 2025

For those struggling with brittle ⁢nails,⁢ dietary adjustments might be the first step, ⁣according to Dr. Manning. If a doctor approves, certain supplements may offer benefits. ⁣Research suggests​ that biotin supplements could play a role in strengthening nails, as ⁤biotin is crucial for‌ keratin production, the protein that forms nails.

One ⁣study indicated that a majority ⁢of participants with brittle ​nails experienced improvements after taking a daily biotin supplement.⁤ A more recent review also pointed to the potential benefits of biotin supplementation, ​alongside increased intake of other micronutrients.

However, it’s important to note that these studies are relatively small and require further, more robust‍ research to ⁤definitively establish a strong connection between ​ biotin supplements and nail health.

Other research explores the ⁢use of bioactive collagen ⁢peptides, with⁣ a significant percentage of participants reporting ‌improvements in ‍nail condition.Collagen, ‍a protein, contributes to the strength of skin, muscles, and bones.

Dr. Cristina Del Toro Badessa, a physician at Artisan⁢ plastic surgery practice in Atlanta, notes the biological plausibility, stating, “Collagen is made of amino acids that ​help form keratin, so it makes sense biologically.” She⁤ frequently enough suggests it as part of a holistic ‍nail health plan, citing potential benefits for skin and joint health as‌ well. While not a guaranteed solution, she finds⁤ it safe, with⁣ many patients ‍reporting stronger nails after several months.

The effectiveness of biotin supplements in strengthening brittle ‌nails, particularly without a diagnosed deficiency, remains somewhat unclear.

Before starting any supplement, consulting with a doctor is essential.

“In my experience, it’s safe to try a moderate dose of biotin short-term, particularly if we’ve ruled out more serious causes like iron ​or thyroid issues,” ⁢said Dr. Del Toro Badessa. “I also remind patients to let their⁤ doctor know if they’re taking it, as high-dose biotin can interfere with lab tests, including thyroid and cardiac markers.”

What’s ‍next

Individuals considering supplements⁢ for brittle nails should consult with their healthcare provider to determine ‌the most appropriate course of action, considering potential interactions ⁤and underlying‍ health ‍conditions.