RS, Retinol 2.5 Serum

Cos De BAHA RS Retinol 2.5 Serum targets visible signs of aging and texture unevenness with a silky, fast-absorbing gel-serum texture. Best for experienced retinol users seeking smoothing and tone improvement, it’s fragrance-free and lightweight, suitable for combination to oily skin that wants refinement and firmer-looking skin without heavy residue.