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 ...

Hair typically grows an average of about half an inch (1.27 centimeters) each month. This means hair grows about one-eighth of an inch (0.32 centimeters) each week. You can expect your hair to ...

These treatments, featuring key compounds such as bis-aminopropyl diglycol dimaleate, facilitate the reformation of disrupted disulfide bonds within the hair cortex.'' By reinstating these bonds ...