In the past, we’ve used Vitamin F in our hair oil—Shine—but Sublime Replenishing Night Masque is the first time we’ve used this in our skin care. When incorporated into skin care formulations, Vitamin F offers exceptional nourishment, helping to support barrier integrity, relieve dryness and maintain balance. It’s a combination of two essential fatty acids derived from Safflower oil: Linoleic Acid and Linolenic Acid. Fatty acids are lipids, and they're crucial for maintaining a strong, healthy stratum corneum (the protective outer layer of the skin), preventing water loss.