The best way to make your bleached hair soft and silky is by using a protein treatment! Protein treatments add proteins back into the hair, which helps rebuild damaged bonds within each strand of hair, making it feel stronger and look shinier. There are lots of different protein treatments you can use, but the best ones are collagen and keratin.Collagen is a natural human protein found in your skin, hair, bones, and other connective tissues, while keratin is actually what your hair is made of!