Breakthrough Technology Pro-Xylane - a cutaneous substance replenisher* concentrated at 5% to visibly reinforce cutaneous density**. Contains Arginine and Serine, known to capture water on the surface, to smooth and hydrate skin. Description Helps reinforce eye area definition. Hydrates and visibly smoothes. Pro-Xylane cutaneous substance precursor is concentrated at 5% to visibly reinforce cutaneous (skin) density. Recommended For •Dryness and/or loss of tone and elasticity in the eye area. Benefits •Suitable for sensitive eyes