The choice of a primer depends on the type of our client’s nail plate. The acid free primer is the most universal and popular product which increases the adhesion of other products to the natural nail plate. Its formula is mild and almost odorless. It does not cause skin tingling or irritation even if the nails are damaged. Once it has been applied, it does not evaporate from the nail, and it leaves a slightly sticky layer on it. When the client’s nail plate is especially demanding – the standard enhancement attracts air or chips off – an acid primer is recommended. That product is strong; it etches the plate so that the hybrid, gel, or acrylic mass can adhere to it perfectly. Acid primers have a strong odor and can cause a temporary stinging sensation.