Phloretin is a naturally occurring dihydrochalcone, a type of polyphenolic compound that belongs to the group of natural phenols. It is most abundantly found in the leaves of apple trees (Malus domestica) and the Manchurian apricot (Prunus mandshurica). Over recent years, phloretin has gained significant attention in dermatology and cosmetic science for its powerful antioxidative and skin-protective properties.
In skincare formulations, phloretin is primarily used for its antioxidant, anti-inflammatory, and skin-brightening effects. As a potent antioxidant, it helps neutralize free radicals generated by environmental stressors such as ultraviolet (UV) radiation, air pollution, and cigarette smoke. These unstable molecules damage skin cells, accelerate collagen breakdown, and trigger premature aging, leading to the formation of wrinkles, loss of elasticity, and uneven texture. By reducing oxidative stress, phloretin supports healthier skin and helps to prevent visible signs of aging.
Beyond its antioxidant activity, phloretin is also recognized for its ability to even out skin tone and improve texture. It reduces the appearance of hyperpigmentation by interfering with melanin overproduction, making it particularly useful in treating conditions such as melasma, post-inflammatory hyperpigmentation, and age spots. Its soothing and anti-inflammatory properties further enhance its role in managing sensitive or problematic skin, reducing redness and irritation associated with inflammatory skin conditions.
An additional advantage of phloretin lies in its unique chemical structure. Due to its polarity, phloretin enhances transdermal delivery, improving penetration of active ingredients into deeper layers of the skin. This makes it an effective carrier molecule and allows it to work synergistically with other antioxidants, such as vitamin C (ascorbic acid) and vitamin E (tocopherol). In fact, phloretin is often incorporated into advanced antioxidant serums in combination with vitamin C, where it stabilizes the formulation and enhances photoprotection. Clinical studies have shown that such combinations significantly improve protection against UV-induced oxidative stress and support collagen preservation.
Overall, phloretin offers a multifaceted approach to skin health. Its antioxidant, anti-inflammatory, and skin-brightening effects, combined with its ability to enhance penetration of other actives, make it a valuable ingredient in modern dermatological and cosmetic formulations. Well-tolerated by most skin types, phloretin provides long-term skin-protective benefits and plays an important role in anti-aging and brightening routines.
