It is acid-free base, not containing acids and corrosive substances. The consistency of the base is of medium viscosity, it evens out perfectly and due to its consistency is convenient to work with a pedicure. It does not have a strong smell. The base does not flake off and gives excellent durability to gel polishes. When drying, it does not burn and does not cause other uncomfortable sensations. Featuring a convenient brush. The amount is 15ml.