This stuff rocks!!
My skin can't tolerate much in the way of acids. Despite being olive skinned and not reacting to much, I really can't use ascorbic acid, retin a, glycolic acid, and my skin can only occasionally tolerate lactic acid. In the past I had used another product by Sin Biology called Lacsal, a combination of 1.5% bha and 8.5% lactic acid. This made my skin red, irritated and just made my pigmented spots look worse, plus it broke me out in massive pimples. With the Exfol my skin looks calm, even toned, a little flaky as the dead skin comes off, but basically very healthy and happy. Plus it really clears out the pores. At 48 my skin is no longer very oily but I do have large pores which get blocked by some ingredients. In the past I had successfully used Olay Age Defying cream with 1.5% bha, but in the last couple of years the texture had become much thicker. I think they might have increased the percentage of silicones in the base formula, and it started breaking me out. Exfol is the perfect alternative. It's only a pity that I had to get it shipped from overseas. The shipping cost is such that I need to place a fairly large order with Skin Biology to justify it.
Nonetheless this is still worthg getting for my skin. Nothing smoothes it and evens the tone like it.