Paula's Choice Salicylic Acid for me.
Love this product, too! I used the gel form, the liquid one was a bit too much for me. When I get back to work, seeing I'll be wearing a mask most of the time, I think I'll get it again. It helped with the sebum production on my chin a lot. Highly recommend it to anyone looking for a salicylic acid, they have various strengths and formulations most of which come in travel sizes, so it's good for testing it out, as they are not cheap.
These days if my chin is acting out, I use Stridex alcohol free pads, but sparingly and not all over my face, as it would be too much for me. Also use them wherever on my body. I don't seem to agree with AHAs at all.