Hyaluronic acid is like a sponge that absorbs water and keeps it inside the skin, so the face looks hydrated, fresh and tight. It is also a natural substance secreted by the same cells responsible for collagen production, to ensure elasticity and suppleness to the skin.
Hyaluronic acid penetrates the upper layer of the skin, providing it with the moisture it needs. Hence, this acid is an effective moisturizer for the face, as it makes the skin less susceptible to damage from external and environmental factors.