Acne prone and oily skin can be pre-treated with Retin A cream prior to Venus Viva treatments. I have my patients continue their Retin A until literally the night before the procedure. If the skin is very scaly and flaky I ask them to reduce the amount and frequency of retin a usage.I have been very pleasantly surprised that none of my patients with darker skin color (Asian skin, Hispanic and Middle eastern skin) have developed brown spots and post inflammatory hyper-pigmentation after Venus Viva. Having said that in patients with a very strong history of blotchy brown pigmentation after laser or other cosmetic procedures a course of Hydroquinone creams are also indicated.