Use JustGoodSkinCare 8% AHA in the morning and 2% BHA in the evening, at the beginning of your skincare routine. By applying the 12 Hour Leave-On exfoliant first, your other treatments are allowed to penetrate your skin more easily, ensuring that your chosen products achieve their optimal results. With correct pH levels, JustGoodSkinCare 12 Hour Leave-On exfoliants have water binding properties, locking in the skin’s moisture and keeping it hydrated. Do not use 8%AHA and 2%BHA at the same time. Always apply a minimum of 30SPF to any sun-exposed skin.