Mustela - Mustela Dermo-Pediatrics Stelactiv For Diaper Rash - 2.9 oz Mustela STELACTIV - Skin care for the diaper area. STELACTIV cares for moderate to severe diaper rash as it acts on the causes of diaper rash with its unique-enzyme formula. Stelactiv also repairs, purifies the skin and soothes discomfort. About the Dermo-Pediatrics Product Line Mustela@, with the collaboration of healthcare professionals, has developed Mustela@ Dermo-Pediatrics, a product line dedicated to problem skin of newborns, babies and children. Mustela@ Dermo-Pediatric line is non-irritating, hypoallergenic, fragrance-free, formulated without paraben and with no artificial coloring. Its efficacy has been tested under dermatological and pediatric supervision; and the formulas are composed of rigorously selected natural active ingredients.