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Vitamin C Effectiveness
Customers have mixed opinions on the effectiveness of the COSRX Vitamin C Serum with Vitamin E & Hyaluronic Acid, but generally positive. Some customers praise its high percentage of pure vitamin C at an affordable price and effective results, while others mention a fishy smell that is common for vitamin C serums and prefer to return to other brands.
Highlights
Quality
I’ve been using vitamin c serums for over 15 years, and so far, this is one of the best ones.
My skin is ultra-resilient and nothing ever irritates it.
It smells like vitamin c, woodsy and earthy and it's a very strong smell.
Smells uncomfortable fishy but that is the vit c normal smell, after some seconds over the skin the smell is gone, and personal... Read More
Price
So far one of my favorites in the range of price.
This is the best budget vitamin c serum!
If you’re looking for a vitamin c serum for around $20, this is the one.
The smell isn’t pleasant, but for me, the scent is a lower priority.
Competitiveness
I’ve tried many different brands, but this one is by far the most effective at reducing freckles.
Overview
- How are reviewers describing this item?
first, awful, still, far and sticky. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 126.
- Our engine has discovered that over 80% high quality reviews are present.
- This product had a total of 5,588 reviews as of our last analysis date on Mar 30 2025.
Helpful InsightsBETA
Posted by a reviewer on Amazon
The oil is pretty thin and absorbs immediately
Posted by a reviewer on Amazon
Havent had any reactions but i have quite of time with this vitc concentration
Posted by a reviewer on Amazon
Any result with dark spots or fine lines but i realized that is normal aging and nothing to do with it lol anyway my skin looks healthy and younger for my age
Posted by a reviewer on Amazon
Double wash first with micellar water then with waterbased cleanser
Posted by a reviewer on Amazon
Sunscreen morningsthis is not for everybody
Posted by a reviewer on Amazon
The vitamin c serum really stinks but it’s worth it
Posted by a reviewer on Amazon
It works well and does what it says but the smell is too much for me
Posted by a reviewer on Amazon
It smells like vitamin c woodsy and earthy and its a very strong smell
Review Count History
Price History
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