The Power of Signature Keratin

From our revolutionary keratin smoothing treatments to a wide variety of salon-professional shampoos and conditioners, each product in our reparative hair care collection is powered with proprietary Signature Keratin for strong, healthy hair.

  • Multiple closeup images of woman's hair, from short and curly to long

    #1 in Keratin Treatments

    Find your perfect keratin hair smoothing treatment.

  • The Fastest Way to Healthier Hair!

    Add Signature Keratin to any cut, color, or blow-dry and step out of the salon with your strongest, healthiest hair yet.

Four Keratin Complex products lined up next to each other

What is keratin?

Hair is made up of keratin—this protein makes up the natural structure of hair and directly affects hair nourishment and moisture. Keratin also forms a protective shield around the hair. When keratin is optimized, it leads to strong, healthy hair.