Hyaluronic acid is the ultimate treatment against extreme dryness. Each vial contains only the pure active ingredients, without any preservatives or other chemicals. Hyaluronic acid is a natural polysaccharide with incredible properties, even more enhanced by the specific form that we are using: reduced molecular weight for higher skin penetration. Dehydration and loss of firmness are signs of skin ageing that lead to wrinkle formation and sagging of some face areas. Using hyaluronic acid helps to maintain a moisturized and firm skin. Hyaluronic acid improves cellular cohesion avoiding transepidermic water loss and stimulates the collagen I synthesis. The skin is therefore progressively tightened and moisturized. The skin is younger, nicer, both flexible and firm.