Glycerol 30ml is a clear, odorless liquid used for various medicinal and cosmetic purposes. It is commonly used as a moisturizer in skin care products, helping to hydrate and soften the skin. In medicine, glycerol is often used as a laxative to relieve constipation, as it helps draw water into the bowel to ease stool passage. It can also be used to soothe and protect irritated skin, such as in wound care.