Serum for immediate relief from irritation and long-term balance of the scalp| The sensitive scalp needs care that not only soothes but also strengthens it. The serum Olaplex N°0.5 Scalp Longevity Treatment immediately alleviates irritation, restores the protective barrier, and supports the natural balance of the microbiome. Its lightweight texture absorbs quickly, leaves no residue, and provides long-term protection from external agents. With regular use, the scalp will be healthy, more resilient, and pronto will promote strong hair growth.