Bluebonnet Nutrition Biotin 5000 mcg, Hair & Nail Support*, Non-GMO, Vegan, Kosher Certified, Gluten-Free, Soy-Free, Dairy-Free, 120 Vegetable Capsules, 120 Servings

Customers find the biotin supplement effective, with one reporting noticeable results within two weeks. The supplement helps strengthen nails and improve their growth rate, and customers appreciate that it's easy to swallow. They also consider it good value for money.