[ITCHING, BURNING & TINGLING SENSATIONS] Sebum oxidation and micro cracks on the scalp surface can create all these issues. It’s a vicious cycle and you want out. [INSTANT SCALP RELIEF] Gently cleanses while soothing and calming sensitive scalps. Hair is soft, radiant and hydrated. [ULTRA-POTENT ACTIVES] Enriched with Niacinamide, a vitamin from the B3 family, known for its regulating and soothing powers. [DERMATOLOGICALLY-APPROVED] Made with hair pros, approved by dermatologists. [SCIENTIFICALLY PROVEN EFFICACY] Up to 73% more soothing* & up to 49% hydrated/nourished hair**. *Self assessment on 32 subjects after application of shampoo + mask. **instrumental test [500ml REFILL POUCH] Refill your 300ml or 500ml shampoo bottle.