Which is better?

1. Cosrx AHA/BHA - the mildest exfoliator out of three. It combine both aha and bha so you could benefit from both. As i know, the concentration is less than 1% so it is perfect for sensitive skin. Some can use it daily but others recommend to use it thrice a week, depends on skin sensitivity. 2. Cosrx BHA - contains 4% betaine salicylate which equals the strength of 2% salicylic acid. More suitable for oily skin since it penetrates deeps into pores. Great for blackhead. Due to the high irritation, some might experience purging. Also help with acne. 3. Cosrx AHA - contains 7% glycolic acid which is the strongest AHA compared to lactic and mandelic acid. Also used weekly and can increase sun sensitivity. Great for fading hyperpigmentation and reducing whitehead. Suitable for dry skin too. * personally use the cosrx aha, i found it to be too strong for my skin. Feel stinging and cause redness. if you are interested in using AHA, lactic and mandelic acid are more suitable choice for sensitive skin since they are milder. Or choose a lower percentage.

different function maybe u can check their ingredient in picky first see whether they suit you or not Btw I also looking for clarifying treatment toner haha

if you do end up purchasing an exfoliating product, make sure to work it into your routine slowly since retinoic acid (tretinoin) is already quite strong by itself. Probably best to use them in separate routines so it’s not too harsh on your skin. good luck! ☺️

I love the blackhead power liquid