Can I use C-Tetra Advanced Gel-Serum in the evening?Updated a month ago

Yes, C-Tetra Advanced Gel-Serum can be used both morning and night. However, we recommend once daily use in the morning in order to maximize the benefits. This is because the product was designed to help boost your skin’s defense against environmental stressors that your skin is most exposed to during the day. By applying C-Tetra Advanced Gel-Serum in the morning, you're ensuring that your skin receives maximum protection and benefits when it needs it most. 

Therefore, it forms a perfect part of our CSA philosophy: Sunscreen and Vitamin C in the morning for maximum daytime protection and age defense, Vitamin A at night to support skin regeneration.