- Isotroin-20 20mg 10S Capsules is a pharmaceutical grade medicine used to treat a variety of skin conditions. It is formulated with isotretinoin, a derivative of vitamin A, which helps to reduce the amount of oil produced by the skin. This helps to reduce the occurrence of acne and other skin conditions. It is available in a 10 capsule pack and is easy to take with a glass of water. Isotroin-20 20mg 10S Capsules are formulated with the highest quality ingredients and are safe to use. It is a highly effective treatment for acne and other skin conditions. It has been clinically tested and is proven to provide quick and long lasting results.