The cuticle is your hair’s protective outer layer, and when it’s healthy, it’s smooth and flat. Damage can lift some of the ...

A quick science lesson: Your hair is made up of disulfide bonds—and these bonds are what keep the hair in its natural state. When you straighten hair, you're breaking those bonds, allowing the ...

"There are three types of bonds in our hair: disulfide bonds, hydrogen bonds, and covalent bonds," explains medical and aesthetic dermatologist Kiran Mian, DO, FAAD. "Disulfide bonds are ...

and disulfide.” She stresses there are other bonds in the hair, but the following are the most important to know for hair health: Hydrogen Bonds: “Hydrogen bonds are broken when your hair is wet.

We all know that life can be tough on your hair, from heat styling to color treatments and the general wear and tear of daily ...