The Sunday Riley Power Couple Duo includes two powerful products: the Good Genes Lactic Acid Treatment and the Luna Sleeping Night Oil. The Good Genes Treatment is a lactic acid-based serum that exfoliates the skin, reduces the appearance of fine lines and wrinkles, and improves the skin's texture and clarity. The Luna Sleeping Night Oil is a retinol-infused oil that helps to reduce the signs of aging and promote a more youthful complexion. This set is a great option for those looking to improve the overall appearance of their skin.