Serum pumps are engineered for use with thicker liquid products, often associated with cream-based solutions. Their nozzles feature a polished finish, ideal for such formulations. A cream pump typically includes a cap, which helps maintain the freshness of the contents and prevents bacterial growth or hardening around the center hole.
Glycolic acid can improve the texture and appearance of skin, exfoliating the top layers of the epidermis, and reduce the appearance of wrinkles, scarring, hyperpigmentation and various other skin conditions
