The Olaplex No.0.5 Scalp Longevity Treatment is a targeted application that has been specially developed for the needs of the scalp. As the basis for healthy-looking hair, the serum is suitable for all hair and scalp types. Its lightweight, non-greasy formulation absorbs quickly without weighing hair down or leaving a residue, making daily use straightforward. Enriched with a combination of panthenol (provitamin B5) and niacinamide (vitamin B3), the natural protective barrier of the scalp can be supported. In addition, the lactobacillus extract it contains can help to promote the balance of the scalp's microbiome. The result is a pleasant feeling on the scalp and a good basis for a softer and shinier appearance of the hair. The serum is applied directly to the dry or damp scalp, gently massaged in and does not need to be rinsed out. Lightweight, fast-absorbing texture for all scalp and hair types. Formulated with panthenol and niacinamide, which can support the scalp's natural protective barrier Can help to promote the balance of the scalp's microbiome Leaves no residue and does not weigh the hair down.