For some people it can cause irritation because of the AHA/BHA/PHA in each of the product in the set and it doesn't have sunscreen, it has a strong chemical ingredients so it needed to use sunscreen. 

The cleanser is not striping and not drying to skin even tho it has AHA/BHA/PHA, it is also affordable because it comes with a moisturizer and serum already. 

i find this cleanser too striping/drying for my skin i have combination skin, 

i recommend this product to those who really have oily skin, the packaging is cute and it is affordable. 

Kikayler