As glucose transport inhibitor, Phloretin can inhibits protein kinase C and has been shown to inhibit the entry of five enveloped viruses into human fibroblasts.

Phloretin, a type of natural phenol found in the peels of apples, is a dihydrochalcone that shows beneficial effects on diabetes. Phloretin has whitening, freckle removal, anti-aging, strong antioxidant, and photoprotective effects. It can also inhibit the activity of matrix metalloproteinase (MMP-1) and elastase, which can degrade skin connective tissue and play an important role in the process of skin photoaging. Phloretin has excellent immunosuppressive and anti-inflammatory effects. Phloretin can significantly inhibit the levels of nitrogen oxide, prostaglandin E2, IL-6, TNF-α, iNOS and COX-2, inhibit the nuclear translocation of NF-JB subunit p65 protein, and reduce phosphorylation in the MAPK pathway. It can be used in facial masks, skin creams, lotions and essences.