Biotin: The Complete Guide

Biotin is best known as the “hair and nails” vitamin — and it plays a conditioning role in topical lash care too. This guide explains what it is.

What is biotin?

Biotin is vitamin B7, a nutrient involved in the body’s use of proteins like keratin, which makes up hair, nails and lashes. Applied topically in lash products, biotin (often as biotinoyl tripeptide-1) is used to condition and support the look of healthier lashes.

What does it do?

• Conditions lashes — for a healthier, better-nourished look.
• Supports the lash line — a gentle, cosmetic approach.

Where we use it

Biotin conditions in our Eye Lash Enhancing Serum. See the Ingredient Glossary. Cosmetic conditioning; individual results vary.

Frequently asked questions

Does biotin help lashes grow?

Topically, biotin conditions and supports the look of healthier lashes; it’s a cosmetic conditioning ingredient rather than a growth drug.

Is biotin safe around the eyes?

In products formulated for the lash area, yes — apply as directed and avoid the eye itself.