Skin Concern: Dry skin DERMAdoctor Solution: Cacti survive the driest desert conditions for a reason - and now DERMAdoctor adds these ingredients to your daily Hyaluronic Acid moisturizer. What Is It?: Hyaluronic Acid based moisturizing serum supercharged with cacti extracts to hydrate the driest, most challenged skin. Hyaluronic Acid holds up to 1000 times it weight in water which is why it is the go-to moisurizing ingredient. This magical, moisturizing elixir also provides parched skin with nutrient-rich sources of vital antioxidants, vitamins, electrolytes and essential fatty acids, giving you a gorgeous, healthy glow.