21st Century Vitamins and Supplements - For Adults, Women

Biotin 5000 mcg

Biotin 5000 mcg - Main image
$4.87 $7.99 In stock

Category: Vitamin B

Biotin, also known as vitamin B7, can be found in a variety of natural food sources including egg yolks, fish, organ meats, nuts, seeds and certain vegetables like sweet potatoes.

For over 30 years, 21ST Century Vitamins has provided trusted vitamins and supplements by upholding the highest standards of quality in every product we offer. From sourcing the finest ingredients to rigorous testing and production processes, we ensure that every product meets our stringent quality benchmarks. We are here to support your wellness every step of the way.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Scarlett O. ★★★★★

Noticed my nails growing stronger and less brittle after a few weeks, and the 5000 mcg dosage is easy to swallow. This works well for me.

Steven C. ★★★★★

My hair stopped shedding so much after about six weeks of taking these daily. The 5000 mcg dosage in each capsule feels like the sweet spot for me.

Mia M. ★★★★★

Three months in and my nails are finally growing without peeling halfway up—I can actually file them into a shape instead of just keeping them short. The 5000 mcg dose is strong enough that I notice a difference, but it's easy to swallow with breakfast.