Vitamin C and breakouts: Vitamin C is one of the most powerful antioxidants in skin care because it helps to slow down the aging process by preventing free radical damage. Apart from that long-term topical use has been clinically shown to regenerate collagen and improve the appearance of wrinkles. Vitamin C also lightens pigmentation and brightens the skin tone. At the same time it has been known that it can induce irritation and trigger breakouts. The reason why is that, is because of inactive ingredients in vitamin C products, for example: the base, silicones or others, which helps to keep the Vitamin C stable for longer. That’s why it can be problematic for acne-prone or sensitive skin.
Vitamin A is another one of my obsessions. It helps to keep the skin firm and healthy by stimulating and thickening the deep layer of the skin called dermis where collagen, elastin and blood vessels are. It helps to reduce wrinkles by slowing down breakdown of our collagen and elastin. As well it gently exfoliates the skin, smoothing it out; increases blood flow to the skin, which means more oxygen is going to our cells to help with cell renewal; and one of the most important benefits for me is that Vitamin A decreases production of sebum and helps to treat acne. Using serum with Vitamin A can really do miracles for your skin especially when it comes to aging and breakouts.
Apart from that, use your serum at night and a sunblock during a day to protect your skin against harmful UV light because if you let UV light and vitamin A into your skin at the same time you might end up with redness and sensitivity because they are doing the opposite things (sun causes damage to our skin, whereas vitamin A is trying to repair it).