Jan 6, 2017 - Even if it's damaged seemingly beyond repair or you've just had it coloured or permed, you can still use the keratin hair treatments without causing excess damage afterwards. The only type of hair that it doesn't work on is those with thin, fine, or straight hair. Keratin treatments are designed for thick and coarse hair. Of course, keratin is great for damaged locks, so don't worry if you've permed, relaxed, or bleached your hair. If you have fine hair, avoid salon keratin treatments. . However, at-home keratin treatments are perfect for fine hair. Do avoid Brazilian keratin treatments if you are pregnant, have severely damaged hair from too much bleaching, bleached hair that's superfine, stick-straight hair . Keratin and Hair Growth. . If you have frizzy hair or your hair looks dry and damaged, you may be tempted to get a keratin treatment to smooth hair and add shine. However, keratin treatments, due to the ingredients involved and the high heat required to do the technique, may actually cause more damage to hair. Jul 20, 2015 - There will be no damage, only soft, shiny, manageable hair with no frizz. I will also add that once the Brazilian is gone, and it just sort of fades out gradually, your . Oct 2, 2016 - 'Subjecting a fine or heavily highlighted head of hair to a 450 . 'If your hair is damaged, traditional keratin treatments can still be OK, but . Dec 7, 2017 - 8 Things to Know About Hair-Smoothing Keratin Treatments Squeaky Clean · 3 New Types of Shampoo That'll Totally Transform Your Damaged Hair . 21 Hair-Thickening Products That Breathe Life Into Fine, Thin Hair. Mar 20, 2017 - Keratin treatment for thin fine hair. Published In: . High temperatures secure keratin which wraps up the hair in order to further protect it. The procedure of . is keratin? What hair is shampoo best for repairing damaged hair? Answers to key keratin straightening treatment questions, from 'How long will this . 'If you use the same formula on fine hair that you do on thick, it'll just be flat .