What is Biotin (Vitamin B7/Vitamin H)?

Topically, biotin helps condition the fiber, supports surface smoothness and shine, and can make hair feel more resilient by improving combability—especially when paired with proteins, panthenol, and cationic conditioners.

Topical biotin isn’t a drug and isn’t proven to change hair growth rate. It can, however, help hair feel stronger and look fuller by reducing breakage and improving fiber quality—which supports length retention over time.

Those with fragile, breakage-prone, color-treated, or frequently heat-styled hair often notice better manageability and shine. Curly/coily hair types may appreciate slip and reduced frizz when biotin is part of a conditioning system.

In nail treatments, biotin is used to support hardness and flexibility and reduce splitting/peeling when paired with emollients and film formers. As with hair, consistent use matters.

It supports a healthy-feeling barrier and a balanced, conditioned scalp. In facial/body care it contributes to softness and a smoother after-feel, especially in synergy with glycerin, panthenol, and niacinamide.

- Biotin: vitamin cofactor that conditions and supports keratin appearance.
- Panthenol: humectant that boosts hydration, slip, and shine.
- Hydrolyzed proteins (rice/oat/keratin): film-forming peptides that improve body and strength.

Together they create a resilient, glossy feel.

Generally well-tolerated, fragrance-free, and used at very low percentages. As always, patch test if you’re highly reactive and avoid over-fragranced bases.

- Slip & strength: Behentrimonium Methosulfate (BTMS), cetrimonium chloride, guar hydroxypropyltrimonium chloride
- Hydration & shine: panthenol, glycerin, squalane/CCT, camellia/argan oils
- Body & resilience: hydrolyzed rice/oat/keratin proteins

These boost detangling, frizz control, and gloss.

At typical levels, biotin is non-oily and non-comedogenic. Weight comes from the overall base—opt for light conditioners/serums if you have fine hair or an oily scalp.