This is my 2nd bottle. I use it morning & evening, then apply either the Vitamin C cream or the Vitamin C/Retinol cream. I will NOT be without this serum. It is fabulous and produces noticeable results.

This is a great product!

I have use the serum every 2-3 days I have also peeling products ,but really help me with my pigmentation!And no irritate which is very new for me !

I use this product every morning and have so for a long time! It makes my skin look great.

I used this product every morning before applying moisturizer. I saw rapid results. My skin tone evened out and my pores were reduced. I also think my skin looks fresher.

Would not go with out it. It holds the skin up

DISCLAIMER: I received the Vitamin C Potent Topical Serum 27% - 45 day supply 1oz. FREE as part of a contest at [@] I started using the Vitamin C Potent Topical Serum 27% - 45 day supply 1oz. approximately 6 weeks ago. At first, I had a hard time getting used to the very liquid texture. The directions say to apply it with gauze, but I couldn't seem to remember to buy some! Anyways... I have very few fine lines (not bad for almost-40), but I do have facial redness and visible red capillaries on my cheeks near my nose, as well as a few sun spots near my cheekbones. I am currently using Finacea prescribed by a Derm for the redness. So, twice a day after cleansing, I applied the Vitamin C serum, let it absorb and dry, then applied my Finacea and other skin lotion (SPF in AM, AHA in PM). My skin looks less red with more clarity. I really believe the Vitamin C Potent Topical Serum 27% made a difference. I will be purchasing the Vitamin C kit next...

I use twice daily and it's great stuff. Also absorbs quickly.

I have a very oily T-zone, so I love the way my skin just "drinks" up this serum, making my skin soft and smooth, but never greasy.

unsure yet

I like this product but I think results are coming gradually. It is hard to comment on something that has no immediate results. I do really love putting this on my skin and intuitively I feel like it is working and my skin likes it.

I use the product every morning after I wash my face from the preceeding night's use of Retin A.
I've also used it on my arms to help lighten age spots, after they've been treated with retinA cream the night before.

I love all NSS products, but the C Topical Serum has components that really work and make it last while in the bottle. Terrific product.

This is my third bottle of the Vitamin C Potent Serum-27%. I will continue to purchase because the results are proven and the price is right. I have priced many topical Vitamin C products - out of my budget for sure. I use it morning & night, under my moisturizer. It absorbs quickly; my skin feels tight and looks wonderful!

Helps create smooth skin when used with retin A @ night. I wish it weren't so expensive [...]

I use Retin A cream @ night and after I wsh it off in the morning, I apply the 27% Vitamin C.
My skin looks so young, fresh, and vibrant.

I'd like it to be cheaper!

With daily use, my skin looks amazing!

I use this product twice a day. I've been using it for over a year now. I will always use it.

Use this product morning and night for great results!

I use this product everyday and my skin looks and feels great!

my skin looks smoother than hers!

I have a very oily T-zone, so I love the way my skin just "drinks" up this serum, making my skin soft and smooth, but never greasy.

I use the product every morning after I wash my face from the preceeding night's use of Retin A.
I've also used it on my arms to help lighten age spots, after they've been treated with retinA cream the night before.

I used this product every morning before applying moisturizer. I saw rapid results. My skin tone evened out and my pores were reduced. I also think my skin looks fresher.

I love all NSS products, but the C Topical Serum has components that really work and make it last while in the bottle. Terrific product.

This is my third bottle of the Vitamin C Potent Serum-27%. I will continue to purchase because the results are proven and the price is right. I have priced many topical Vitamin C products - out of my budget for sure. I use it morning & night, under my moisturizer. It absorbs quickly; my skin feels tight and looks wonderful!

Helps create smooth skin when used with retin A @ night. I wish it weren't so expensive [...]

I use Retin A cream @ night and after I wsh it off in the morning, I apply the 27% Vitamin C.
My skin looks so young, fresh, and vibrant.

I'd like it to be cheaper!

Would not go with out it. It holds the skin up

With daily use, my skin looks amazing!

I use this product twice a day. I've been using it for over a year now. I will always use it.

DISCLAIMER: I received the Vitamin C Potent Topical Serum 27% - 45 day supply 1oz. FREE as part of a contest at [@] I started using the Vitamin C Potent Topical Serum 27% - 45 day supply 1oz. approximately 6 weeks ago. At first, I had a hard time getting used to the very liquid texture. The directions say to apply it with gauze, but I couldn't seem to remember to buy some! Anyways... I have very few fine lines (not bad for almost-40), but I do have facial redness and visible red capillaries on my cheeks near my nose, as well as a few sun spots near my cheekbones. I am currently using Finacea prescribed by a Derm for the redness. So, twice a day after cleansing, I applied the Vitamin C serum, let it absorb and dry, then applied my Finacea and other skin lotion (SPF in AM, AHA in PM). My skin looks less red with more clarity. I really believe the Vitamin C Potent Topical Serum 27% made a difference. I will be purchasing the Vitamin C kit next...

I use twice daily and it's great stuff. Also absorbs quickly.

Use this product morning and night for great results!

I use this product everyday and my skin looks and feels great!

This is my 2nd bottle. I use it morning & evening, then apply either the Vitamin C cream or the Vitamin C/Retinol cream. I will NOT be without this serum. It is fabulous and produces noticeable results.

This is a great product!

I have use the serum every 2-3 days I have also peeling products ,but really help me with my pigmentation!And no irritate which is very new for me !

unsure yet

I like this product but I think results are coming gradually. It is hard to comment on something that has no immediate results. I do really love putting this on my skin and intuitively I feel like it is working and my skin likes it.

I use this product every morning and have so for a long time! It makes my skin look great.