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Vitamin C can help even out your skin tone, minimize signs of aging and promote collagen production. That’s probably why TruSkin Vitamin C Serum has become massively popular on Amazon with over 97,000 five-star reviews. And this formula contains more than vitamin C — it also has hyaluronic acid, vitamin E, witch hazel and jojoba oil.

“I’m a 54-year-old woman who has been battling dark circles under the eyes,” writes one reviewer. “I have tried everything, I mean everything, but this product changed everything my dark circles are fading, my skin looks awesome, this is magic in a bottle.”