Using Toner Before Vitamin C Serum

Using a toner before applying a Vitamin C serum is generally acceptable and can be a beneficial step in your skincare routine.

• Hydrating Toners: Toners that focus on hydration can help prepare the skin to absorb subsequent products better.
• Exfoliating Toners (AHAs/BHAs): If you are using an exfoliating toner containing ingredients like AHAs or BHAs, it's often recommended to use caution or apply them at a different time of day than your Vitamin C serum (especially serums containing L-Ascorbic Acid, like Vitamin C E Ferulic or 16% Vitamin C Brightening Serum). While it's less about inactivating the Vitamin C and more about potential irritation from combining multiple acidic products, staggering their use is a common practice.

A standard hydrating or balancing toner is unlikely to significantly reduce the effectiveness of your Vitamin C serum. The key is to ensure your skin is clean and slightly damp (from the toner) before applying the serum for optimal absorption.