Where do I layer C-Tetra Advanced in my routine?Updated a month ago

C-Tetra Advanced should be applied in the morning, after cleansing and toning, but before moisturiser and sunscreen. If you are using multiple serums, we recommend applying them in order of thinnest to thickest in texture.

 Since C-Tetra Advanced is a lightweight emulsion, it should be layered on top of water and oil-based serums. This ensures your skin gets the full benefits of each product. 

If layered with another emulsion, the thinnest to thickest rule still applies. For example, if layered with Liquid Peptides Advanced MP, we would recommend layering C-Tetra Advanced after  Liquid Peptides Advanced MP, as it’s slightly thicker in texture. 

C-Tetra Advanced can be used both morning and night. However, we recommend once daily use in the morning in order to maximise the benefits. This is because the product was designed to help boost your skin’s defence against environmental stressors that your skin is most exposed to during the day. By applying C-Tetra 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 defence, Vitamin A at night to support skin regeneration.