It would be great if there was one answer to this, but the truth is: it depends. AHAs come in different strengths, and we all have different skin types and concerns.
If you have one that recommends seldom use – say, once a week – then start with that. If you have one that’s recommended for daily use, it’s still a good idea to test your skin’s reaction to it by starting with once every three days either AM or PM. If, after a week or so you find that you’re not reacting negatively to it (e.g., breakouts or dryness) then you can start to use it more often.
It's also important to know when in your routine to use it. We have a handy guide on how to layer your skincare
but exfoliation will always come after cleansing. It’s especially important you don’t use it after anything else because it will just remove those products from the skin.
Our AHA Resurfacing Serum is designed for daily use (but we still recommend starting slowly if you have sensitive skin) and in addition to the AHA Lime Pearl, it’s supported by hyaluronic acid and aloe vera for hydration. Delightful.