This little thing is good! I use it when I feel that there is a small pimple forming. I put one big dollop of this all over my small skin bumps (white heads? soon-to-be pimples?) and leave it overnight. You will feel a "tingle" using it this way, but it's a good "tingle".
This usually reduces the small under-the-skin-bumps overnight or 2. For bigger skin bumps, this will make the pimple have a "head" which I can properly prick and cover with a hydrocolloid dressing. If the bump is still present in the morning, I will use a thin layer of this under my sunblock, and over my serum.
Packaging is perfect! Consistency is great, and it smells good. Love this!
(I'm not sure if there is a US version of this--like the Duo, but I bought mine from someone who lives in Europe)
I am still using Acne.org's Treatment (2.5% Benzoyl Peroxide) for maintenance. I use A.I. just to spot-treat small bumps and pimples. On the days where I use BP at night (M-W-F) I use A.I. on top of BP, after waiting for the BP to dry (15 mins) Stings a little but, pretty good acne-fighting combo overall.