Only 2 ingredients use, really impressive Hydrate and moisturise my skin and add extra glow to it

I absolutely love this serum. It is beginner friendly as the concetration of Vitamin C is low. It actually helps in brightening the skin and reduces the dark spots & hyperpi...Read More

This face serum is awesome. I like to use it. my skin is spotless now.

Really good product

Lightweight, fast-absorbing, and actually non-sticky (which most “vitamin C” serums lie about). The Ethylated Ascorbic Acid feels gentle yet effective—skin looks brighter and...Read More

I love the product 😍 this is the best thing that this serum suits me coz my skin is very sensitive and i love the fact that there is no bad frangnance . I have a combination...Read More

Regular use will be much effective

Clean packaging and neat . The formula isn't oily it is watery but then when applied it adjusts with your skin . Im looking for buying it again thankyou nykaa

I really love the product. After using product for 2 weeks, I can see the positive Chages in my skin.

This Vitamin C serum by Cos-IQ has two ingredients only and help to repair and rejuvenates skin. Removes hyperpigmentation. Makes skin soft, supple and healthy. Absolutely re...Read More

Very nice face serum... actually feeling good on skin after using 3-4 days. Seems effective also. This variant is exactly what i was looking for my skin..

The quality of Vitamin C in this product is really great. It's a must-try for everyone.

This is the best serum ever, must have this one.

COSIQ is highly recommended by me, it shows results very effectively

Applied only once, it has oily consistency yet not making skin look oily. Because of its this consistency a little amount will work well hence 30ml will finish in a month. He...Read More

The product is very nice. And if u want to see the result you hv to wait atleast for two month. I could see my face has bcom one tone fairer nd hss started to glow.

It works well.. only problem i find in this is it doesn't get absorbed quickly and takes more than 5 mins just to sit on skin ...

Does not feel light after applying

Average i would say Can't see much difference ...using it from 2 months now.

This product make my skin very dry. I got small bumps on my whole face, Make my skin itchy.