Vitamin C, vitamin A (retinol) and vitamin E are the key vitamins that most reliably improve skin brightness, texture and barrier health. You'll find how each vitamin works, whether to use topical or oral forms, simple layering rules and safety checks to avoid irritation.
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Use topical vitamin C in the morning to boost brightness and antioxidant defence.
Introduce retinol slowly at night to improve texture and reduce fine lines.
Pair vitamin E with vitamin C to support barrier repair and lower sensitivity.
Choose oral supplements only if diet lacks nutrients and check with your GP.
Keep reading to match vitamins to common concerns, learn safe concentrations and how to layer actives without irritation. The guide helps you choose between serums and supplements, when to pause use, and what to tell your GP if you consider oral vitamins.