Protein strengthens hair, especially it’s overprocessed or bleached. A “keratin treatment” on the other hand, refers to chemical processing to smooth/straighten hair which might not be a good idea on bleached hair. Apply Hair Oil. Nourishing the hair with coconut oil before bleaching will add and an extra layer of protection to the hair. Our hair is made of keratin (the hair protein), and coconut oil minimizes protein loss and strengthens the hair ( 1 ). Additionally, it also softens the hair and keeps it smooth. t5Tfwp.

is keratin good for bleached hair