What Does Keratin Do in Hair-Care Products?

Keratin is a protein naturally associated with hair, which is why keratin-derived ingredients appear in many shampoos, conditioners, masks and styling products.

Why is keratin used in formulas?

Cosmetic formulas may use hydrolyzed keratin or related protein ingredients to condition hair and improve its feel and appearance. The exact effect depends on the complete formulation, how it is used and the individual’s hair.

Keratin products are not all the same

A keratin-containing shampoo or mask is different from a professional salon keratin treatment. Reading the product directions and ingredient information matters.

Balance matters

Your routine should reflect your hair’s texture, condition and styling needs. If a product makes your hair feel heavy or stiff, adjust how often you use it.

Check product-specific information

Ingredients can come from different sources. If vegan status or ingredient sourcing is important to you, check the specific product information rather than assuming every keratin formula is the same.

Lucy’s Hair Affair is preparing several hair-care products for launch. They remain Coming Soon while supplier and fulfillment details are finalized.