Based on the reviews, the AQUA OASIS TONER by S.NATURE is best suited for a variety of skin types, including oily, combination, and dry skin. Many users with sensitive skin also found it gentle and effective. The key factor seems to be the product's hydrating properties, which are beneficial for all skin types, especially those experiencing dehydration or dryness. However, users with extremely oily skin might find it a bit heavy during the summer months.