A super common, safe, effective and cheap molecule used for more than 50 years
Not only a simple moisturizer but knows much more: keeps the skin lipids between our skin cells in a healthy (liquid crystal) state, protects against irritation, helps to restore barrier
Effective from as low as 3% with even more benefits for dry skin at higher concentrations up to 20-40%
High-glycerin moisturizers are awesome for treating severely dry skin