What is the difference between the effects of Vitamin C and those of Resveratrol on the skin?

It is true that these two substances are recognized for their excellent antioxidant power. However, some nuances can be made regarding their use.

Derived from Japanese knotweed, a plant from East Asia used in traditional Chinese and Japanese medicine, resveratrol is primarily recommended to combat oxidative stress and the assault on cells by free radicals. As a reminder, these are unstable molecules that are highly reactive and produced in excess by various factors such as stress, smoking, pollution, poor diet, etc. They destroy cells and healthy skin proteins, accelerating skin aging and the appearance of aging signs such as wrinkles and/or pigmentation spots. Resveratrol works upstream by blocking the formation of free radicals and downstream by neutralizing existing free radicals. It thus has a dual preventive and corrective action against sources of oxidation, which helps to limit premature skin aging.

Vitamin C also effectively combats oxidative stress, but it is primarily recommended for its impact on skin's radiance and evenness of complexion. Indeed, several studies have demonstrated its brightening power when applied topically, which even helps to combat hyperpigmentation, a skin disorder that can occur at any age and is characterized by brown spots on the skin's surface. Furthermore, it stimulates the synthesis of collagen in the skin, enhancing its firmness.