If I could only pick 4 skin products to uses forever this would be one of them. I would go without a cleaner before I let this go. 

I try to always have this serum on hand it works beautiful if you have a zip it will take it away overnight I love it love it love it been using this product for the past 10 years and my skin looks amazing if you have any type of acne it will clear it right away You will notice some light peeling after using this but this product is a must have

This really helped calm my breakouts. Wish it wasn’t so pricey but worth it.

WOW... Although a bit pricey, it's worth every dollar. I love the exfoliation it provides for my oily clogged skin. I love the smell and the consistency. It's not sticky and the next day my skin is glowing. I do peel for about 2-3 days which is awesome. I have light melasma and I notice a little lightning on the dark melasma spots. I also noticed my pores much smaller after the 3 day when all the peeling has come to an end. I like to use this once a week. Too much of a good thing is no good. You will peel and you will love it.

I have used this product for years. I always receive compliments from my dermatologist about how my skin looks because of this product in particular.

WHY, WHY, WHYYYYYYY do these companies change formulas?????????????? I have tried about 20 different mandelic serums and this was far and away the very best. Even with the ridiculous price, I used it religiously. It didn't have a smell, went on easily, absorbed super fast with no residue and left my skin feeling tight, super smooth and so glassy you could see your reflection. Nothing less than amazing. This last bottle had new packaging, but I hoped that was all that changed. It isn't. It smells icky - like alcohol. It did not leave my skin smooth or glassy AT ALL. In fact, it left a gross, sticky film that made my skin feel stiff and dirty. I'm beyond disappointed...

Mandelic acid is great for sensitive acne prone skin

I absolutely love this serum and have been using it for many, many years. I started using it in my early 40s and I'm still using it in my early 60s. I get compliments from my dermatologist regarding my facial skin due to the daily use of this product. 

I've used this product for years, adjusting the dose to how my skin feels. It absorbs fast, and I found that you can use less of it immediately after toning vs. waiting for the skin to dry. It’s been proven to be very effective in fighting active acne and clearing post-acne red marks. It's one of the few derm-approved products safe for pregnant and nursing moms. 

I used this last year and was super happy with the results. Skin was so clear and then i decided with the clearness i should try a cheaper mandelic acid from the ordinary. And hell came out on my face. I blamed it on hormones for 3 months until I couldn't take it anymore and ordered this 15% mandelic acid again. Two weeks of use and every cystic and small pimple has magically disappeared. I will never cheat on you again vivant. Xoxo. Just buy it.