![Concentrated Retinol Serum 1](http://sperrinskincare.com/cdn/shop/products/Concentrated-Retinol-Serum-1_{width}x.jpg?v=1549572213)
Only for skin acclimatised to Vitamin A (Skin EssentiA 5 or Youth EssentiA 4+. Apply a thin layer, allow to dry and follow with your Environ Moisturiser.Serum 1 - Use 2-3 bottles before moving to Serum 2.
Only for skin acclimatised to Vitamin A (Skin EssentiA 5 or Youth EssentiA 4+. Apply a thin layer, allow to dry and follow with your Environ Moisturiser.Serum 1 - Use 2-3 bottles before moving to Serum 2.