Are skin care products containing AHAs beneficial for mature skin?

Yes. The exfoliation caused by AHAs gives mature skin a clearer, fresher look. As we age, the cell renewal process tends to slow down. AHAs stimulate cell turnover. There is also some evidence that AHAs have an "anti-wrinkle effect" due to the acids' action on the dermal layer of the skin. Research in this area is ongoing.