In a word, great. It's the first facial peel I have ever tried, and so I wanted to start with the gentlest formulation. Even though my combination skin is quite sensitive, this peel didn't irritate me at all. The first time I tried it, I developed tiny red bumps on my cheeks, but the next morning my face was smooth and glowy. Didn't notice much else right away, though, and over the next week a few blemishes appeared in my t-zone and then disappeared shortly thereafter (detoxification, perhaps?) After the third time I used it, someone I've known for a while turned to me in the bright sunlight and said, "You have no wrinkles." After the sixth time, my friend said, out of the blue, "the lines between your eyes are gone." I'm sold. For those of us who are beginning to really see the definite signs of aging, this is a great product with which to try to stave off the inevitable.
UPDATE: had to stop using this product, as it seemed to ultimately make my once-occasional mild breakouts worse and more frequent. Not for my sensitive skin, but worth a try for the great results. Just get a sample first!
UPDATE 3/19/2012: After letting my beauty routine go to the dogs the past year or so, I've come back to this product. After the second time I used it, my mother asked me if I had had a facelift. After the third time, my husband said that my skin looked noticeably better. I'm sold--it really does make a difference.

well.. I paid like $38 for one eighth 1/8 of an ounce..ebay samples...
im sorry I have to say it was same as any other exfoliators..glycolic peels.. but that my skin is VERY ACCLIMATED to peels as high as 70% for many many years....
but it DID its job! even toned... less acne scars.. less acne..smooth youthful skin.
but for me was mild...
im looking for stronger... or to just leave my skin a lone a long while so that I may use these types of products again.definately give it a go..get samples... a sample is like HUGE..you can get 2-4 peels from one little vial easily.
definately less buffered than others so you will get a real effect.. while still being gentle.(I didnt burn or sting or turn red or peel) just got good skin. no downtime whatsoever for me.but like I siad..im used to such products.

I bought some 25% samples off of ebay after reading all the great reviews on here. My skin has never been very good because of old acne scarring but this really worked on the clarity of my skin. I really noticed a difference. I'm waiting a month before I try the 50% samples I got at Neimans.

This is a very good exfoliator, it's the gentlest of the three that Natura Bisse offers. I only get a minimal amount of tingling in the first couple of minutes then it stops. My skin feels like silk after I wash it off. I don't use it 2x a week as they direct, I used it about every ten days or so. I don't like to exfoliate too often as it will do more harm than good in the long term. I feel that this product helps my pores to drain so I don't get any clogging. I prefer this type of exfoliating to the scrub variety as it won't scratch the skin. I used to buy this peel in the single use ampoules years ago and I'm glad that it's now in a pump bottle. This is one of the stars of the NB range.

I really love this product. I should say that this is not a miracle - it doesn't work in just one or two applications. Using 2 times a week I noticed the following: after 1 week, my skin was more luminous & had a more even skin tone. Week 2: Breakouts went away and skin felt really, really smooth with very pretty glow. Week 3: old acne scars fading and sun spot on cheek no longer needed cover up to hide. Finally, week 4-6: I don't wear foundation anymore! This is amazing for someone who has battled mild acne for over 10 years. I was hesitant to spend the money at first but I am now a true believer. My skin has never looked so good! continued >>

I've been using GlycoPeeling weekly for 3 weeks now and while I don't see major smoothing results it does a nice job of exfoliating the dry, peeling areas I get in winter.
The product is a very thin gel that you apply and leave on for 10min. or so as a mask then wash off. My skin is sensitive to water so I remove it with witch hazel on a cotton pad. Because I can do this and don't need water I find it easier to use than scrubs or thick masks as removing these often irritates my skin.
I'm glad to have gotten a large sample of this but am not sure I'd purchase it. I'd rather not spend this much unless I see major results from the product. But for now I'm pleased.

I received a couple of deluxe samples of Glyco Peeling 25% in a recent GWP promotion. I should probably start by mentioning that I have quite sensitive skin that is combination (tending towards oily) with some pigmentation. I have held out hope that one day I will discover the product to fade the darker spots...this one isn't it. This product is a clear gel that has some kind of cheap fragrance in it. It made my skin ITCH. Bad, bad, bad. I read in the reviews of the 50% product that it (50%) may be good for sensitive skin. Hey, I really doubt that...