A May empty! PSA is a Singapore brand under Allies.
I usually don't like thick viscose serums due to my oily face and it really does leave an oily residue due to the tamanu oil. Tamanu oil is also supposed to be good for oily problematic skin. The chockful of ingredients, glycolic acid, BHA, PHA and probiotics is a cocktail that my skin loves to drink! The percentages look a bit on the high side but I think 12% includes all the exfoliating acids so the individual percentages shouldn't be that high. Still, I use it two to three times a week or even when I feel I need a layer of dead skin to come off. I always look very nice the next morning. Skin is clear and soft.
Definitely worth a repurchase.