1. PCA is an amino acid derivative, which also exists naturally in the skin and is part of the natural moisturizing factor (NMF).
2. Research on acne and zinc often goes hand in hand, because zinc is related to anti-inflammatory, sebum reduction and antibacterial properties. Although it is worth noting that the role of zinc in the treatment of acne has been considered controversial in the past.
3. In addition to the many benefits for acne-prone skin, zinc ions can also protect the skin from the degradation of collagen by ultraviolet rays, thereby preventing skin aging! It really is a great all-rounder!