EXO H-SERUM Hyaluronic Acid Treatment. Key Ingredients: eXo Exosomes. Hyaluronic Acid Blend. ESS Vitamin Blend. Aloe Vera. Benefits: This unique lightweight, non-sticky formulation penetrates deeply and absorbs quickly, nourishing and hydrating the skin from inside and out, helping to improve signs of aging.. Hyaluronic Acid is renowned for its ability to retain moisture; it can hold up to 1000 times its weight in water - a property helping to deeply hydrate your skin.. Ultra-high molecular weight HA forms a dense protective film on the skin surface.. High molecular weight HA holds water on the skin surface nourishing the corneum.. Mid-weight firmly adheres to the stratum corneum, providing superb hydration.. Extremely low molecular HA rapidly penetrates the epidermis and dermis, hydrating and restoring the skin from inside.. Formulated Without: Fragrance. GMO. Allergens. Parabens. Phthalates. Gluten. Sulfates.