Optiphi Brightening Concentrate 30mlBrightening Concentrate is a lightweight, fast absorbing serum designed to support a more even toned, radiant looking complexion. Formulated with a gentle, stabilised vitamin C derivative, this advanced concentrate helps brighten dull skin, refine texture, and energise the overall appearance of the skinwithout irritation. Designed for daily use and effortless layering, the lower viscosity formula integrates seamlessly into existing routines while