I would start with PSF's BHA Serum at 2% it's an exfoliant .. click here
for details. BR is using it, you might want to ping her to see if she likes it and if it's still working her. I love this entire line. I use the BA, the DMAE, the Moisture Balance lotion, the H.A Serum and I just got the Phyto-lift Cranberry Eye Gel, love this stuff.