Improve the appearance of thinning hair with the Redken Cerafill Defy Thickening Shampoo for Normal to Thin Hair. This gentle cleansing shampoo is enriched with Zinc PCA, which will remove impurities & sebum from the scalp & help to promote a healthy scalp environment. The perfect re-boot for thinning hair, the restorative shampoo will help to nourish & thicken hair follicles whilst intensely cleansing the head & hair. After use, hair will feel fuller & healthier, hair fibres will be strengthened & subtly infused with the invigorating aroma of ginger mint. Apply daily to wet hair, massage into a lather. Rinse. Safe for colour & chemically treated hair.