"today is my first day using retain a 0.04% microderm gel. i work in a pharmacy and the rph told me when using this gel i have to also use clindamyacin 1% lotion before the gel. she also told me to use minocycline 100 mg capsules as well. anyway , she said it will work alone but will work excellent together( gel &amp; lotion). then the capsules will top it off. my face (due a thyroidectomy that was performed) was always clear. within 6 months i had a lot of scars and pimples galore . i tried epiduo, nuquin, proactive, rx for brown skin, no7  everything but my hormones are out of wack. hopefully this combo will work. will keep ya posted."