AHA: Lactic Acid
If you think of cows when you think of lactic acid, there's a reason: lactic acid is often described as the AHA that's extracted from milk. This acid also works to exfoliate the surface of the skin. It's important you find lactic acid in combination with other ingredients that help soothe the skin because it's been reported that it can cause some skin sensitivity. In the toner, the Eucalyptus Teaoxi helps, while hyaluronic acid helps in the serum.