Keratin is a protein that helps form hair, nails, and the outer layer of the skin. It is the primary component of hair, and it helps keep hair healthy and strong. Here are some ways that keratin benefits hair:

• Smooths hair cuticle: Keratin treatments work by smoothing down the cells that overlap to form hair strands, which can make hair smoother and easier to manage. They can also cut down on drying time.

• Reduces frizz: Keratin can act as a protective shield against humidity, which is the primary cause of frizz.

• Adds shine: Keratin treatments can make hair look shinier and glossier.

• Strengthens hair: Keratin can strengthen and fortify hair, which can make it less prone to breakage and damage.

• Makes hair more manageable: Keratin treatments can make hair more manageable, especially if it is particularly frizzy or thick.

• Reduces the appearance of split ends: Keratin treatments can temporarily bond hair back together, which can reduce the appearance of split ends.

Its important to note that keratin treatments may contain unsafe ingredients, and some people may experience heat damage from the treatment process. Additionally, there are no studies that conclude that keratin supplements make hair stronger.