The AQUA OASIS TONER by S.NATURE has received positive feedback for its hydrating properties and gentle formula, which are beneficial for various skin types. However, specific reviews mentioning its effectiveness for acne-prone skin are limited. Users have noted that the toner is lightweight, non-greasy, and doesn't cause irritation, which are positive signs for acne-prone skin. However, there is no direct mention of it specifically targeting or improving acne.

Given the positive feedback on its gentle and hydrating nature, it could be suitable for acne-prone skin, but individual results may vary. It is always recommended to patch test new products and consult with a dermatologist if you have specific skin concerns.