tonucia natural filler concentrated youth serum for thin weakened hair75ml The Tonucia Pro Youth Scalp Serum is designed to help combat visible signs of hair aging while revitalizing thin, tired hair. Formulated with lemon balm, wheat microprotein, orange essential oil, and tamarind seed extract, it helps protect against external aggressors while boosting hydration, density, and overall hair vitality. Features Pro youth scalp serum for aging or weakened hair Helps deeply hydrate and revitalize the hair and scalp