What should I not layer with Vitamin C serum?Updated 6 days ago

To avoid irritation and maintain effectiveness, do not layer Vitamin C serum with products containing benzoyl peroxide, retinol, or AHAs/BHAs at the same time. These ingredients can destabilize Vitamin C or increase skin sensitivity when combined. If you're using these in your routine, apply them at different times of day—such as Vitamin C in the morning and retinol at night—for optimal results. Always follow with sunscreen during the day to protect your skin and preserve the brightening effects.