Natural Moisturizing Factors + HA is an effective moisturiser that mimics the composition of your skin's natural hydration system. Enriched with a comprehensive blend of ingredients that occur naturally in the skin - such as amino acids, fatty acids, triglycerides, urea, ceramides, phospholipids, glycerin, saccharides, sodium PCA and hyaluronic acid - this formula keeps the outer layer of your skin well hydrated.ure - this formula keeps the outer layer of your skin well hydrated and protected without leaving a greasy residue.