Sports Research Biotin 5000mcg

Paper-thin nails finally growing past my fingertips

I've had paper-thin nails my entire life that snap the moment they reach the tip of my finger. Started these because $15 for a 4-month supply felt risk-free. Within 8 weeks, my nails were visibly stronger. They actually grow past my fingertips now without breaking. The coconut oil softgels are tiny and easy to swallow. Best value supplement I've ever bought.

Great for nails but gave me cystic acne

My nails improved dramatically — stronger, no peeling. But I got cystic acne on my chin and jawline after about 3 weeks, something I've never experienced before. Stopped taking it and acne cleared within 2 weeks. My dermatologist confirmed it's a known side effect of high-dose biotin. Switched to collagen peptides instead — no acne, nails still doing well.

On my second bottle — nails are finally growing

My nails have been splitting and peeling for years. A friend recommended Sports Research specifically because of the coconut oil base for better absorption. On my second bottle now and the difference is undeniable — my nails are stronger, smoother, and actually growing. At $3.75 per month, there's no reason not to try this before spending $50+ on premium brands.

Make sure you buy from an authorized seller

First bottle I got seemed off — the softgels were half clear, half milky. Turns out there are counterfeit products floating around Amazon. Ordered directly from Sports Research's store and the quality was perfect. After 3 months of the real product, my hair shedding decreased noticeably. Just be careful where you buy it from.