Vitamin C, in any form, provides powerful antioxidant protection, protecting skin from harmful environmental stressors. Continuous usage has been shown to improve the appearance of multiple signs of ageing, brighten an uneven skin tone, and provide skin-restoring and calming benefits.

Research has shown that when combined with UVB sunscreen chemicals, vitamin C provides additional protection against UVB damage. Another conclusion is that the combination of vitamins C, E, and sunscreen provides better protection than individual ingredient working alone. Vitamin C also regulates collagen biosynthesis. It is known to help stimulate collagen production, and when properly formulated, it can brighten the skin.

It should be noted that all antioxidants, including vitamin C, are susceptible to destabilisation when exposed to air and light. That means that if you want to reap the benefits of your antioxidant-rich treatments, just choose those that come in opaque tubes, air-tight bottles, or pumps that help keep their ingredients stable.