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When it comes to skincare products that work, antioxidant serums containing vitamin C reign supreme. But it’s crucial to know how and when to use vitamin C serum to reap the many benefits of vitamin C ...

We may earn commission from links on this page, but we only recommend products we love. Promise. There's been no better time to be really, really into your skincare routine, with more active ...

Use vitamin C in the morning and retinol at night to avoid skin irritation. Vitamin C protects against photodamage and should be applied before applying sunscreen. Retinol is best used at night due to ...

Ask any dermatologist what the most important active ingredients to include in your skin care routine are, and vitamin C will be one of their answers. Simply put, vitamin C is the holy grail of ...