What’s a vitamin C serum?
If you have your head in the skincare game, you’ve likely heard of vitamin C serums.
Vitamin C is touted as one of the best ingredients on the market for pro-aging support — and the key to maintaining a smooth, even, and glowy complexion.
1. It’s safe for most skin types
Vitamin C has an excellent safety profile Trusted Source. Most people can use topical vitamin C for an extended period without experiencing any adverse reactions.
In a review of research trusted Source notes that vitamin C may cause minor skin irritation in concentrations above 20%. Because of this, its concentration often ranges between 10% and 20% in skin care products.
2. It’s hydrating.
most healthy skin and organs contain high concentrations of vitamin C, suggesting that vitamin C accumulates in the body from circulation.
Review authors noted that topical vitamin C penetrates the skin best in the form of ascorbic acid.
Magnesium ascorbyl phosphate, another vitamin C derivative used in skin care, has been shown to have a hydrating effect on the skin. It decreases transepidermal water loss (TEWL), allowing your skin to retain moisture better.
3. It helps reduce redness and even out your skin tone
Vitamin C has also been shown to act as an anti-inflammatory agent through its antioxidant capacity, according to a 2015 review trusted Source. This means it soothes your skin and can reduce puffiness.
Vitamin C’s anti-inflammatory action may help neutralize free radicals that cause oxidative damage and optimize the immune system to discourage an inflammatory immune response.
The anti-inflammatory properties of vitamin C can also help reduce redness, which in turn can create a more even complexion.
The combined reduction of dark spots, redness, and irritation makes for a clear, smooth skin tone.
4. It reduces the appearance of under-eye circles
Vitamin C serums can help smooth out fine lines by plumping and hydrating the under-eye area.
Although vitamin C is more effective at reducing overall redness, some people say it can help alleviate discoloration associated with under-eye circles.
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