i am not entirely sure how i feel about this product, as currently i already use other acids in my routine. it certainly has not had a negative impact on my skin, i just don't know that i can attribute any of the good thing happening to my face to this and this alone. as others have mentioned, the product tingles on application and throughout the duration of the time it's on your face. it's definitely an unpleasant feeling but not entirely intolerable. i use 7 drops so i'm only applying a very thin layer. i've never tried applying more than that to see if it would make any difference in my results, but i can't imagine that it would.
as of the past 6+ months, my routine has been as follows:
AHA 30% + BHA 2% solution every other night. salicylic 2% solution followed by 5% glycolic solution on the nights i don't use the 30/2%. moisturizer primarily in the mornings during summer, occasionally in the evenings in winter or whenever my skin seems to be getting flaky (i'm genetically oily and moisturizers often break me out when used in excess or when they're too occlusive). finally, i spot treat with benzoyl peroxide and try to keep a sunscreen on hand to use in the mornings, however as of late i've run out and have yet to pick up a new tube.
my skin is generally in good condition. my routine controls the vast majority of my whiteheads + larger under the skin bumps, and i've seen a slight reduction in blackheads since starting this routine several months ago as well. the only thing it doesn't seem to do much for is closed comedones on my upper cheeks, but those don't really get to be too bothersome anyway. in general, when i wake up in the mornings, provided i've been keeping up with my skincare in recent days, my skin appears bright, plump, and even.
i'm thinking i might do away with the 5% glycolic when i run out of it and see how my skin fares with just the 30/2% + 2% salicylic on alternating days. i will certainly update my review here when the time comes.