The Dyson Chitosan Post-style serum refill is a brand new 100ml product designed specifically for hair dryers. This serum, from the trusted brand Dyson, is formulated to hold and hydrate hair, providing a nourishing experience for those looking to achieve beautifully styled and healthy locks. With a focus on hair care and styling, this product is a must-have for anyone looking to maintain their hair's natural beauty and condition. This Item not refundable.