[ITCHING, BURNING & TINGLING SENSATIONS]: Sebum oxidation and micro cracks on the scalp surface can create all these issues. [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]: After only 1 use, +73% instant soothing* & +49% hydrated/nourished hair**. *Please note the pump is not included in the purchase of the product, but can be purchased separately. *self assessment on 32 subjects after application of shampoo + mask. **instrumental test Read less