Hydration is key—when your skin barrier is healthy and intact, your skin can better tolerate treatments and ingredients that are high in potency, like retinoic acids and BHA.

Whether it’s through supplements, diet, or a skincare routine, it’s essential to fortify your skin barrier by regularly supplying your body with the vitamins it needs. To boost skin health, try adding a full spectrum of vitamins to your routine. Here’s a guide on how each essential vitamin builds your skin health.