Paula's Choice Clinical - 25% Vitamin C + Glutathione Serum

You can use the serum once or twice daily, in the morning and/or evening, after cleansing.

While the serum is formulated to be gentle, it contains a high concentration of Vitamin C, which can cause sensitivity. Perform a patch test before use and start with a lower frequency.

Follow the serum with a moisturizer and, during the day, a broad-spectrum sunscreen.

Store the serum in a cool, dark place away from direct sunlight and heat.

Results vary, but many users report seeing improvements in skin tone and radiance within a few weeks of consistent use.

Yes, but introduce new products gradually. Avoid using it with high concentrations of retinol or AHAs/BHAs simultaneously, especially when starting.

Slight color change is normal. If the color becomes dark brown, the serum may have oxidized and should be discarded.

Consult with your doctor before use during pregnancy or breastfeeding.

Reduce the frequency of use to every other day or every few days. If irritation persists, discontinue use and consult a dermatologist.

Slight color change over time is normal due to the nature of Vitamin C. If the color becomes dark brown, the serum may have oxidized and its effectiveness could be diminished. Discard and replace it.

Ensure your skin is properly cleansed before application. Use a small amount and pat gently into the skin. If needed, try applying on slightly damp skin.