different types of keratin treatment
During application of a formaldehyde-based keratin treatment, you risk breathing in this chemical or letting it run from your hair onto your skin, which can result in short-term skin reactions and breathing difficulty, as well as the potential long-term risks of exposure to a toxic carcinogen.
A keratin straightening treatment is a procedure in which the hair is coated in a chemical cocktail that alters the hairâs structure. It does this by including agents to break down the bonds that cause hair to curl. The hair is then usually flat-ironed to lock in the treatment and set the hair straight.