Moisturize and soften skin with Arginine PCA which when applied topically to the skin, has been found to enhance the skin's moisturizing ability. Calms and soothes extremely dehydrated skin by boosting short term moisture content and providing a long term hydrating effect. Excellent in conjunction with the Hydrating Ampoule (HCA3196) or Sensitive Ampoule (SCA3191). Ideal for: extremely dehydrated skin types. 1 lb. bulk