Dr esthé Whitening A Serum 50mLThis is a one of a kind brightening serum. It is ideal when a regular brightening serum isn't enough. What makes this skin brightening serum different than other lines is the highly concentrated micro emulsion formula that balances skin's moisture while forming a melanin barrier in the skin. It contains a 6 vitamin complex that together brighten skin, collagen for elasticity and hyaluronic acid for moisture. This combination makes it especially