The Olaplex Bond Maintenance Shampoo No4 and Conditioner No5 Bundle is a professional hair care product set suitable for all hair types. The shampoo contains biotin as its active ingredient and comes in a 250ml sealed container. This cruelty-free product line from Olaplex is designed for unisex use and is formulated to maintain and strengthen hair bonds, providing a nourishing and hydrating experience for your locks. With a period after opening of 12 months, this shampoo is perfect for keeping your hair healthy and vibrant.