I have used it for 2 months. My skin looks brighter now. My skin is soft and moist when I apply the vitamin.

It's ok i guess. when i first started using it, it stung my skin, and then i started noticing that it didn't mix well with my natural oils. I can;t describe the sent but i didn't like it. I will admit that it helped my skin a little though so i'm too upset with it but I wont be buying it again.

This is a good Vita C serum, but be careful to use it fast cause expires quick

I think some scaring has faded but I may need to use it longer to get rid of my large pores. Will update my post. Consistency is nice. I do however keep it in my mini fridge so the vitamin c doesn’t oxidize.

My skin turns red after using this product. Really sad to after buying it.

not too greasy, clears skin and does not cause breakouts

Its highly unstable in summers but is good.

Bought this in hope to decrease the appearance of my dark spots. Personally didn't see much difference. But I guess it's still a good vitamin-C serum. Texture feels thick and feels like it's extracted from real stuff

No wonder it has achieved a cult status. It is a really good vitamin c serum. I does the job it is meant to do and it is stable enough. The price is amazing. I haven't tried more expensive serums but at the moment I don't see any reason to.

i can see my face changes. and shiny this is my 3rd time order it.

It bubbled and made a mess the first time, it turns my face a bit red in application but few hrs you'll see a difference in skin, slightly brighter and moisturized. It's not the best but it's ok.

It's sticky after applying, but becomes smooth after a couple of minutes

The best vitamin c serum I used

Good starting Vitamin C for beginners. But not as stable. Based on scientific research, anything over 15%+ ascorbic acid in a water-based formula is highly unstable and proven to be less effective. Even a 5% or 8% straight ascorbic acid will be better for optimum results! Does not irritate, as the vitamin C is mostly inactive. The formula does leave a brownish tint when it gradually oxidizes. I would only recommend this at night time (so you can wash it off the next morning), as the ESSENCE step.

This serum help blurring my acne scar and doesn’t make my skin feel dry

Just started using it, but it's very sticky and that doesn't go away. It recommends us to mix it with a toner, I'm not sure how that works, but I follow up with a thick cream to compensate for it! <3

i bought this for my friend and her redness started clearing up within a week

Expired date is only for a year...

This is my second purchase, Vit C serum doing great on my skin, make my skin bright and soft, I love this serum

It's effective to lighten scars. Only it oxidizes easily, once you open the bottle, you have to continuously use it while it is fresh. Overall, I'll still use it alternatively with Dear Klairs. 

Brightening but it oxidizes fast so make sure you consume it as quickly as possible. And oh, better keep it in the refrigerator!

It burns my husband’s skin sometimes when he applies it.

For me this C-spurte is Ok, i didnt used it that much because i have something in my face that if i put these c-source it only itch...but i will continue to used this later when my skin is free from itchiness. And one thing this c-source applied to skin Its like your wearing mask on your face it dried up ur skin so better wash your face the day you wake up. Yes, i put this at night time. And that white stuff in cover area is just normal from it.

@tiam_global My Signature C Source - this fizzled up as soon I opened it (wasn’t shocked because I saw it happen to other people and the brand says it’s still safe to use) has 20% L-Ascorbic acid and 6000mg of 100% pure vitamin C for gentle peeling, exfoliation, and clearing out dark spots. Haven’t used this consistently so I can’t say how effective it is yet but will definitely give an update!

this actually really helped with my acne scars!

I bought this and I finished it but I dont remember it. I think the klairs vitamin c was better. I do appreciate they have amber glass packaging though.

I haven't tried it yet. hopefully it turns good for my oily and acne prone skin

I love this product. It has 20% of ascorbic acid which really work. I so the difference on the next day. It your skin is not super sensitive and you want to brighten your complexion this is the great choice for its price. Highly recommend it.

I'm veryyyyy recommeded this product. Love this product so much ❤❤❤

Little bit hurt on my face. I got acne when I use this. I have combination skin. Maybe this product not for me.