After having tried several supposed "medical grade" (expensive) Vitamin C serums, I like this one better! This serum works just as well to improve hyperpigmentation and brighten skin as the expensive serums. I`ve also found this serum to be stable- that is: it has never changed color or scent over its usage. I use this in combination with other products to improve my skin, plus sunscreen. I will purchase it again.

I'm 38 years old, just had my second child and was seeing the results of age and lack of sleep so I bought this based on reviews and low cost. I've gotten a lot of compliments on my skin....it's glowing, my pours look smaller. I'm a happy customer! Bought for my 65 year old mom also and her skin looks more vibrant after just two weeks.

I really wanted to like this based on the glowing reviews but it did absolutely nothing for me. I don`t have trouble areas or skin issues, just looking to add something beneficial to my routine. Prior to this I was using the $69 DrBrandt Vitamin C serum but wanted to find a more affordable alternative. I added this to my moisturizer but it made it smear on my face and wouldn`t blend. So I put this on first and 5m later would apply my moisturizer. I didn`t like the way the serum felt, it`s a tad tacky and feels watery. Nonetheless, if it did anything it`d be worth it - nope.That said, I reached out to customer service and they`re great. I gave this a good 3wks AM and PM, and saw no effects. I`ve since passed the product to a friend.

Pretty disappointed after how many good reviews they have.I started using on Tuesday and it's Thursday and I'm already broken out in nasty red bumps. I did the patch test on my neck and didn't notice any burning or irritation etc so I proceeded to start using it on my face. It's definitely NOT for sensitive skin. As soon as you put it on your face it has a burning sensation which is very weird then the sensation goes away after about 2-3 mins. I will be sending this back.

Update: Erica in customer service was amazing. I changed my three star rating to five because of their spectacular customer service. Erica is sending me, based on conversations, a product which should work better for my skin type. TALK TO ERICA! She will help you with everything! I am looking forward to receiving my replacement product, and am feeling confident it will be more beneficial for me. Stay tuned...For the first few days, the serum seemed to improve the texture of my skin, but that did not last. I started breaking out more than I previously had, and there was some patchy dryness, which I do not normally experience. I may have bought the wrong formula, but am not sure. I am 40 and was hoping for some brightening and overall improvement, but did not get it long term with this serum. Based on reviews, I had higher hopes. The shipping and follow up from supplier were prompt.

I`m 56 and this is me one week ago on the beach with no make up after using the Serum for about one month. I clearly saw a difference. Brighter and glowing skin. On my second bottle. Have now stopped using foundation altogether which is great. Hope the benefits continue :-)

I`ve used almost an entire bottle of this stuff now , it doesn`t cause my skin to break out or dry out . That in itself is saying something because I have sensitive skin and have had a hard time finding things that work yet don`t cause issues . It absorbs quickly , hasn`t made me break out , leaves skin soft , freckles are diminished and pores are smaller. I haven`t noticed a major difference in under eye circles , but they haven`t gotten worse . I`ll buy it again .

Love it, holy grail. However I noticed the bottle has different fonts and some mispelled word so not sure if this is the same formula or company from when I ordered it the first time . My second bottle is the one with the little mistakes I've noticed but seems to be working just as well

Could not tell that it made a difference for me. It had good reviews so I'm guessing it was just something to do with my skin tone and personal needs. Arrived promptly. Accompanying paperwork seem to reflect a sincere desire of the company for customer satisfaction, I think it just wasn't the right product for me.

I love my retinol serum, retinol moisturizer, eye gel, c plus serum, and my c serum! I`m one with combination and sensitive skin and not once did I have a bad reaction to them. Instead, your products have done wonders for me!Thank you for making me a dedicated customer!