What it is: Sensitivity is decreased, irritated scalps feel soothed, and hair is left feeling soft and supple. What it does: It's a relaxing, soothing masque. scalp that is sensitive. Every kind of hair What else you should be aware of: Salix N, a natural ingredient derived from willow extract, is used in the formulation to naturally cool and soothe the scalp, while glycerin provides hydrating, calming, and soothing qualities.