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Our keratin serum contains mineral oil and castor seed oil. It can effectively moisturize and damaged hair after hair coloring and hair th. The way to use it is simple: 1. Clean your hair and keep it dry. 2. Apply appropriate amount of this product to the dyed hair evenly. 3. Gently massage until absorbed. Hydrolyzed keratin ingredients help the roughness of your hair, making it smoother and easier to comb.










