Pterostilbene is a naturally occurring stilbenoid, structurally similar to resveratrol, and is found primarily in blueberries and grapes. It has gained attention in the field of cosmetics due to its antioxidant, anti-inflammatory, and skin-protective properties. Here’s how pterostilbene is beneficial in cosmetic formulations:
1. Antioxidant Protection
Pterostilbene, like resveratrol, has potent antioxidant properties, meaning it can neutralize free radicals that cause oxidative stress. This is important in cosmetics because oxidative stress contributes to skin aging, wrinkles, and pigmentation.
It can help protect the skin from environmental damage caused by UV radiation, pollution, and other environmental stressors, which are known to accelerate skin aging.
2. Anti-Aging
The antioxidant action also means pterostilbene may slow the skin’s aging process. By protecting skin cells from oxidative damage, it may reduce the appearance of fine lines, wrinkles, and age spots.
It also promotes collagen synthesis and improves skin elasticity, making it an excellent ingredient for anti-aging serums and creams.
3. Anti-Inflammatory Effects
Pterostilbene has demonstrated anti-inflammatory properties that can help calm irritated or sensitive skin. Inflammatory responses are often linked to conditions like acne, rosacea, or general skin redness, and its soothing action can help manage these issues.
4. Skin Brightening
Its antioxidant properties may also play a role in skin brightening. By inhibiting the production of melanin and reducing oxidative stress, pterostilbene can help diminish hyperpigmentation, dark spots, and uneven skin tone.
5. UV Protection
There is evidence that pterostilbene can offer a degree of photoprotection against the harmful effects of UV radiation, similar to resveratrol. This makes it a beneficial ingredient in sunscreens or products designed to prevent sun damage.
6. Anti-Bacterial and Anti-Microbial
Research also suggests that pterostilbene has mild antibacterial properties, which can help prevent breakouts and acne by reducing bacteria on the skin.
7. Skin Moisturizing and Repair
Some studies suggest that pterostilbene may help with skin barrier function, promoting better hydration and skin repair. It can be useful in formulations aimed at dry, damaged, or dehydrated skin.
Applications in Cosmetics:
- Anti-aging creams: Pterostilbene is often incorporated into formulations targeting aging, such as serums, moisturizers, and eye creams.
- Sunscreen: Its potential to offer UV protection makes it suitable for inclusion in sunscreen or after-sun products.
- Skin brightening products: It can be included in formulations to even skin tone and fade hyperpigmentation.
- Sensitive skin products: Its anti-inflammatory properties make it ideal for products formulated for sensitive or irritated skin.
Overall, pterostilbene is a promising ingredient in cosmetics for those seeking effective, plant-derived compounds that protect the skin from aging, oxidative stress, and environmental damage.