Biotin benefits: what it does for hair, skin and nails

Biotin shows up in nearly every “hair, skin & nails” supplement — but what does it actually do? Here's a plain-English rundown.

What biotin is

Biotin (vitamin B7) is a water-soluble B vitamin your body uses to help convert food into energy. It's also involved in producing keratin, the structural protein that makes up hair and nails — which is why it's a beauty-supplement staple.

What it supports

Biotin contributes to the maintenance of normal hair and skin, and plays a role in keratin production for hair and nails*. In short: it's one of the nutrients your body draws on to keep hair and nails in good shape.

Do you need to supplement it?

True biotin deficiency is uncommon — it's found in eggs, nuts, seeds, salmon and sweet potatoes. But many people supplement it as part of a broader beauty formula for consistent daily support, especially alongside zinc, vitamin C and collagen, which work together on hair, skin and nails.

One honest heads-up

High-dose biotin can interfere with certain lab tests (including some thyroid and hormone panels). It's harmless, but worth telling your doctor you take it before bloodwork so results aren't skewed.

Where to find it

Biotin sits at the heart of both glow (our passion-fruit gummy) and lustre (the complete daily capsule) — paired with the other nutrients that support your natural glow.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.