Keratin Liss Care straightening serum with keratin Step 2 reconstructs severely damaged hair.
How to use: distribute Step n. 2 Keratin Liss Care serum on shampooed wet hair, from roots to lengths, using a brush. Leave on for 20 minutes. Blow dry your hair, then straighten each single strand using a hair straightener, repeat this operating many times (at least 5 times). Rinse off, then apply Step n. 3 Keratin Liss Care conditioner. Formaldehyde free.