I am a big fan of glycolic acid and have been using glycolic acid for years, mainly on my face but also on my body. This is definitely a stronger glycolic acid and so I do not recommend starting with this, but if you are used to glycolic acid and are looking for something stronger, this is great. I use several Glytone products and I always like them. They leave my dry skin feelings smooth.

a little goes a long way with this cream. i recommend starting with a small amount as it's much stronger than other glycolic products i've tried.

I have been using this product for over ten years, and I have worked my way up from the 10 to the 20 gradually. I love the mild sting that indicates it's working, and I really believe this product is a powerful anti-aging tool. I've tried other glycolic formulations from other brands, and none stand up to Glytone. I use this at night after my Skinceuticals H.A. Intensifier.

It's only been a couple of weeks but so far so good. The texture is a little heavy for me but doable.

I only tried it once and the feel of it was too thick and sticky. So I can't speak of the product effects on skin, with multiple use. I love the Peter Thomas Roth 10% Glycolic Solutions Moisturizer, but sas trying this for the 20% glycolic acid.

I have been using Retin A.. .1% for years since it went off label I am wrinkle free with poreless skin. A plastic surgeon suggested Glytone 20 to use in morning. That's a lot of exfoliation and I would say you have to gradually build up a tolerance especially with my regimen. I can.handle this strength because of my tolerance to Retin A. I use it on face neck and décolletage. The neck and chest skin is more sensitive. And in winter time you may have to cut down your usage if your skin becomes irritated. Cold wind and dry houses make skin more sensitive. It does add exfoliating and skin turnover. I would never give it up but I would recommend you ask your dermatologist about using this strength ESPECIALLY if useIng RetinA at night. This is serious and powerful. You MUST also use an excellent sunscreen. sunscreen is the #1 thing to use. If you don't then NO products will help you! And no sunbathing. If you need a tan appearance use self tanner and whole body tan Spray From a beauty salon

So here i am little generous with two stars but i am considering all the attributes. I have a nearly flawless skin but some pigmentation has occurred recently due to sun. Mys kin type is Normal to dry sensitive kind and this product is not for me. It literally peeled off my skin and gave me large red bumps all over my skin. Now my skin is super dry and irritated as of now and i am trying to repair it with my serums. This product is very harsh if you have a skin type like mine. May be try to use it once a week or so but definitely not a daily or even three times per week doesn't seem like a good idea.

Love this stuff! It really helps with clearer skin. I have to wear a c-pap mask at night, so this really helps with pimples due to the mask.

I do not like how it stings (a little bit) but it is tolerable. seems to work. It helps with my acne

I was first introduced to the Glytone skin line by my dermatologist, and loved it. People used to come up to me and mention how beautiful my skin is-- this was at 48 years old! But my dermatologist switched to Obagi products, and so did I. But now I'm back. After trying Obagi and pricier creams, I much prefer the consistency and performance of the Glytone line. I was thrilled to fine Dermstore offered Glytone online-- no need for a doctor's office. Be warned, however, one can't 'start' with Step 2. Even in the winter I find I have to go back to using Step 1 due to the high level of acid-- my face can turn red and peel a little if the air is too dry. That said, this takes a decade+ off my appearance because my skin is so healthy and radiant looking. Thanks Glytone!