This is the first dedicated acid exfoliant that I've introduced to my skincare routine. I think CosRX makes some really great products, and this is one of them :)

I currently use this once a week, and I may increase usage after time goes on. I swipe it on with a cotton pad after cleansing my face, and leave it on for 20 minutes or so before I continue with my skincare routine. I find that it makes my skin smooth and glossy, but I think I'll have to use it for a longer period of time to see more benefits, such as brightening.

This stings my sensitive skin a bit when I first apply it, but the sensation fades after a few minutes. It's a gentle enough acid that it doesn't make my skin react badly (remember to take it easy if you're using acid exfoliants for the first time!). AHAs are also photosensitizing, so if you use this, please don't forget to use sunscreen regularly. I've become more strict about using sunscreen, especially after days I use this AHA.

I have also tried using this on my body, such as on arms and legs. It also works there and makes my skin silky smooth! It may take a little while before you notice results there though.

It has a not-too-offensive smell, and the amount in the bottle is generous. I can see it lasting for a long time, especially since I only use it once a week on my face and just a few days for my body. The only real downside I have to this is that it feels a bit sticky, and if you use your hands to spread it on your body, it makes your hands feel tacky. That's certainly not a deal breaker though, because it works very well at what it's supposed to.

In all, a really great AHA. I'll try CosRX's BHA next :)