ZO Skin Health.

"If there's one that I sort of recommend in terms of retinol, I'd probably recommend this because this is not going to desensitize your skin as quickly as some of the other formulations. Definitely a brand that delivers results. But I would never use this brand by yourself. I would always have some professional skin professional to point you in the right direction because you need someone that knows skin to be able to say, well, stop this, use this, use this just once a day, alter it, or just stop using this altogether and replace it with this. It requires an innate knowledge of absolutely everything going on. I always say with ZO Skin Health you learn something new every day."

"Dr Obagi started the skin care line Obagi as well as ZO Skin Health. Dr Obagi always recommended a pretty aggressive approach to skin care. He recommended using tretinoin or Retin-A at the highest strengths, he recommended using prescription strength hydroquinone and aggressive physical exfoliators. If you get on the original Obagi formulas you can get dry flaking red inflamed skin, skin that literally looks like you are erupting, and that can persist for a couple of months. But the interesting thing with Obagi and his recommendations is you give it a few months of this skin that's just literally peeling off your face and red and irritated and it can really aggressively reverse the aging process. For people who have really sun damaged thick age skin being aggressive with skin care can create some very impressive results. But the problem is this type of aggressive skin care may be good if you've got really aged sun damaged skin but it can be actually not so good if you've got skin that already looks pretty good."