First, I want to apologize for the long review, but if you're serious about getting your KP under control in a quick, effective, reasonably sound and safe way then please read on.This product is terrific for anyone who hasn't seen any improvement in their KP with over the counter products that you can buy in your local pharmacy. This product should be used with care. It is NOT considered an over the counter product by the FDA due to its Glycolic acid concentration (>10%) & dual lack of sunscreen. If you're just beginning to treat your KP try some of the OTC products as they may provide sufficient exfoliation for your skin. If like me, you've been there, done that, and have the (long-sleeve) t-shirt to prove it, then this is a great option. Do not use on top of any topically applied prescription agents without consulting your pharmacist or physician.Ok now the review, first a few things...All products containing AHAs (ie. lactic acid and glycolic acid) should be used with sunscreens even for darker tones that aren't prone to sunburns. The increased exfoliation this causes makes your skin susceptible to UV damage which can be as mild as a sunburn or as severe as skin cancer. Don't take your chances. Because these products increase your sensitivity to the sun use them with caution if you're already taking medications that do that as well, such as a diuretic for blood pressure or certain antibiotics... again if you're unsure call your pharmacist or doctor.As for the product itself.The body wash: I was concerned that the body was would have an unpleasant smell, but it has a nice "clean" smell that is decent enough for either males or females. Although its concentration is medical grade, a little word of advice from someone with a bit of training. Many may not find any benefit from the body wash alone. The reason for this is because the active ingredient doesn't stay on our skin long enough to produce any effect. Totally makes sense because we're WASHING it off. To get some benefit from this wash, using your hands, lather your affected areas up and DON'T RINSE. Let the body wash sit on your skin as you do your best to wash your non-kp areas with your regular soap, or wash your face, or... whatever it is you do in the shower. Once you've done that, now that the glycolic acid had time (though still minimal) to absorb into your skin, using your luffa add some physical exfoliation to your KP areas. Personally, I'm not convinced I'll buy the body wash again, but I wanted to try it out anyways despite what I already knew about "medical" body washes.The "lotion": The lotion is more of a cream then a lotion, in my opinion, and is fairly thick. But this is a good thing since creams tend to work better than lotions in all things dermatological. It lacks in smell, which I appreciate. I use this immediately after the shower. While still in the bathroom (because the extra humidity from the shower works in your favor) I towel off just enough to remove excess water, but not enough to completely dry my skin. I then apply the lotion ONLY to my KP areas and I completely rub the lotion into my skin. (For my non KP areas I use their other, less-concentrated, glycolic acid lotion, only because it makes my skin baby soft). Afterwards I will put on pajama pants and a long sleeve shirt that are a little snuggly and covers my KP areas. This just allow less drying of the skin and less evaporation of the lotion, thus allowing more absorption of the glycolic acid into the skin.Overall using this regimen I literally saw a significant decrease in roughness within 2-3 days and complete smoothness in some areas within a week. Other areas are still are a little bumpy but aren't bothersome enough for me to be dissatisfied.Other pointers: I only use this lotion after my showers at night. In the morning, I prefer their other, less concentrated, glycolic acid lotion because it's co-formulated with sunscreen and the reduced concentration reduces your chances of skin irritation while having the added benefit of gentle exfoliation regular lotion does not give.If this doesn't work for you, try their elbow and foot cream . Start off slow because the concentration AND the fact that its a cream can easily cause irritation. I would probably limit the cream to once every 2 weeks or once every week and eventually taper down to just the lotion once your KP is under control.((Necessary Disclaimer: This review should not take place of getting medical advice or any medical advice you have received))