EFFICACY TEST
6X shinier hair* 3.5X silkier hair** Extreme softness*** *Instrumental test on hair locks, hair shine increase, OI Shampoo + Liquid Luster vs OI Shampoo only. **Instrumental combing test on hair locks, OI Shampoo + Liquid Luster vs OI Shampoo only. ***Self-evaluation of 63 volunteers worldwide.

















