Yellow Professional SCALP CARE ENERGIZING LOTION is a concentrated leave-in treatment that strengthens and redensifies hair from the root. Formulated with a caffeine and biotin complex, it delivers a strengthening, redensifying action for weakened hair prone to falling out. Comes in single-use 13 ml vials for a full treatment course. Ideal for clients pursuing an intensive, targeted treatment for weak, thinning hair — pairs with Energizing Shampoo for enhanced results.