[routine help] Where should I use this TO Glycolic acid?

Beauty Tips For Body Care
Hi everyone!I have this big bottle of TO’s Glyoclic acid that was barely being used. Anyone can suggest where I can incorporate it and how to use it properly?My current routine:Morning -Clindamycin toner Azelaic Acid Suspension 10% Alpha Arbutin 2% + HA Niacinamide cream Sunblock spf 50 (twice - another one with spf 30)Evening -Clindamycin toner Amino Acids + B5 TO “Buffet” - Multi-Technology serum Niacinamide cream Tretinoin .05%I’ve heard the glycolic acid is for whitening/exfoliation? And it’s used on underarms, knees, etc? Is this used in the face too? And how frequently should it be used?Thank you!
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Submitted by new_2_londo