To be fair, the first time I used this serum was also the first time I`ve used a derma roller, but after dermarolling and then putting on this serum....WOW- my face had really brightened up just with one use. I will continue to buy this product to use with my derma roller. I do also use it by itself after cleansing and before moisturizing.

I have a very oily & sensitive skin. After doing much researched, I've come across this product. And WOW! I've only used it for 3 days and it already made such big difference in my face. My face gotten brighter, it brighten my acne dark scars. I hate being oily at work because I constantly have to wipe my face throughout the day, but after using this product at night time my face feels moisturized throughout the day and I'm not as oily. Thank god I came i across this product! Amazing!!! AMAZING!!! Thank you!!!

This is the second time I purchase this serum! Since a young girl I suffer with acne, and now as an adult I get breakouts here and there but I scar very easily. Anytime I have breakouts and I'm left behind with the bump or scar I put this serum on and by the morning time my scar has faded significantly with just applying it 1 time! I do not recommend this as a moisturizer because it does not moisturize the skin it will leave a very thin film over the area that you applied the serum to. I highly highly highly recommend this vitamin C serum to anybody suffering with scars, hyperpigmentation it works wonders! I have very sensitive skin and this product does not irritate my skin. I never find anything that really 'Äúworks'Äù for my skin that I can see as fast results as this product which is why I'm repurchasing usually I do not repurchase things unless they've became an essential in my life and this has definitely became an essential! Love love love it!

I am not sure if the product I received is good or not. The opening of the bottle is very crusty and the liquid looks a bit cloudy as well. I performed a patch test of my arm and neck for 24 hrs with no side effects but I am still worried. Might return this product as I am just not sure if the acids have already gone rancid.

I purchased this product a couple of months ago it has help my skin a lot. I use it almost every night, it doesn`t dry my skin and I have noticed the redness of my breakouts decrease . This product is amazing, it doesn`t have a scent (which is amazing), is not sticky or grease, and I love the ingredients that it had. I have acne prone skin, I get hormonal breakouts every now and then and my skin doesn`t always like the product I put on. I have noticed major improvements with the redness/ inflammation of my skin and skin texture, also keep in mind that my skin is not perfect and this product is not going to magically transform your skin from one day to another, but it will definitely help you if you maintain a good skincare routine and apply this product properly. I`m a big fan of Vitamin C and finding one that is affordable that actually works is a big plus for me. I WILL HIGHLY RECOMMEND THIS PRODUCT BECAUSE IT WORKS!!!

I had an allergic reaction to this the third time I applied it. That day I had been out in the sun very briefly on a five-minute walk without sunscreen. Over the course of the next few days my skin became inflamed, red, wrinkled, extremely itchy and swollen. I believe some of the ingredients to may be PHOTOREACTIVE!, SO BEWARE!!! Plant-based products can have this affect when you go into the sun. For example, lemons and limes can cause extreme burns if you have juice from them on your skin (ever heard of the Margherita Burn?!) Another example is the milk (sap) from plumeria flowers which are very photoreactive and can cause bubbly itchy water-filled blisters on your skin if you go out into the sun. I don`t know which of the ingredients in particular in this product are responsible, however if you use this product, I pray you don`t have to go through what I just did. It took an entire week to recover.

This was my first time trying this and over the last few weeks I have seen such a dramatic difference with my dark spots! I have tried sooooo many things and was hesitant to try this product but I decided to give it a go bc the look of it convinced me..SO HAPPY I BOUGHT THIS AND WILL BE STOCKING UOP ON THIS ITEM FROM HERE ON OUT! BEST PRODUCT THUD FAR FOR CORRECTING MY DARK SPOTS AND LOVE THIS STUFF SO MUCH! I TELL ALL MY FRIENDS AND FAMILY TO GIVE IT A TRY! THANKS!

This serum is the BEST!! My brown spots are getting so much lighter. My hormonal breakout's are under control quickly with spot treatment. This product's job is not to moisturize, so get an additional moisturizer. This is a very potent antioxidant for your skin issues. A+

I have a lot of acne scars and my skin was just dull and uneven, I am amazed when I look in the mirror now! I`ve been lied to so many times about products promising this and that but this one truly made such a difference!!! I`m constantly raving about it to my friends and family and literally any time skin care products come up. It`s so inexpensive and lasts a while too! I wish I had taken before and after photos to prove the difference this stuff made. I just cannot say enough good things about it. Life long customer for sure!!!

I have sensitive skin, maybe not the most sensitive, but a lot of things break me out and irritate me and this is not one of them. I'm careful to follow instruction (not daily use, store away from sun, only use at night on clean skin, let dry totally before moisturizing) and it works great, I'm about to purchase my third vial. Clears up redness and calms down a breakout, heals my acne scars faster too. I've recommended this to several others who wanted to try a serum and they all said it worked for them. Try it!