The Science of Hair: What is it made of?
YOU HAVE HEARD OF KERATIN: There are “soft” keratins and “hard” keratins. Soft keratins are more flexible and hard keratins are more rigid. Hard keratins do not dissolve in water and as you might have [...]
YOU HAVE HEARD OF KERATIN: There are “soft” keratins and “hard” keratins. Soft keratins are more flexible and hard keratins are more rigid. Hard keratins do not dissolve in water and as you might have [...]