RS, Retinol 2.5 Serum

Cos De BAHA RS Retinol 2.5 Serum delivers a concentrated retinol treatment to smooth fine lines and refine skin texture. Its light gel-cream consistency absorbs quickly, making it suitable for evening routines and layering under moisturizers. Intended for experienced retinol users targeting photoaging, uneven tone, and roughness, the formulation focuses on active delivery with a minimal, utilitarian approach.