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✨ Glow like you mean it — because your skin deserves the spotlight!
Cos-IQ 20% Vitamin C Serum is a scientifically formulated anti-aging powerhouse combining 20% pure ethylated Vitamin C with Vitamin E and Ferulic Acid. This 30ml serum delivers visible improvements in skin brightness, elasticity, and tone while reducing wrinkles, fine lines, and dark spots. Clinically proven to reduce oxidative damage from UV rays and pollution by up to 41%, it’s a lightweight, fast-absorbing solution designed for all skin types to achieve radiant, youthful skin in just 30 days.
| ASIN | B0BTR7SNV1 |
| Active Ingredients | Vitamin-C (3-O-Ethyl Ascorbic Acid) Ethylated Ascorbic Acid |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #11,440 in Beauty ( See Top 100 in Beauty ) #352 in Serums |
| Brand | COS-IQ |
| Country of Origin | India |
| Customer Reviews | 4.0 out of 5 stars 380 Reviews |
| Item Dimensions | 20 x 20 x 30 Millimeters |
| Item Form | Gel |
| Item Type Name | Serum |
| Item Volume | 30 Millilitres |
| Item Weight | 30 Grams |
| Item dimensions L x W x H | 20 x 20 x 30 Millimeters |
| Manufacturer | Cos-IQ®, R.I. Ayurveda Research Labs, Dilshad Garden Industrial Area, G.T. Road, Delhi 110095 |
| Manufacturer Contact Information | R.I. Ayurveda Research Labs, Dilshad Garden Industrial Area, G.T. Road, Delhi 110095 |
| Manufacturer Part Number | CEF20 |
| Material Features | Natural |
| Material Type Free | (MEA/DEA/TEA), Silicones, Mineral Oils Free, Paraben Free, Phthalate Free, Sodium Lauryl Sulfate Free, Sulfate Free |
| Model Number | CEF20 |
| Number of Items | 1 |
| Other Special Features of the Product | Dermatologically Tested, High-Dose Vitamin C, Not Tested On Animals, Unscented |
| Packer Contact Information | Inlabs Lifesciences Pvt Ltd., Delhi 110095, Email: [email protected] |
| Product Benefits | Improves skin texture, brightens, reduce dark spots |
| Recommended Uses For Product | Dark Spots, Wrinkles |
| Scent | Unscented |
| Skin Type | All, Combination, Normal, Oily, Sensitive |
| Special Feature | Dermatologically Tested, High-Dose Vitamin C, Not Tested On Animals, Unscented |
| Target Use Body Part | Face |
| Unit Count | 30.0 Milliliters |
R**A
Cos-IQ 20% Vitamin C Serum
This product is lightweight and easy to use.All tone skin .and quality is fabulous.no skin irritation.buy it
V**A
20% Vitamin C by Cosiq
Surprisingly works wonders on all skin types. I have oily skin and i use it everyday before sunscreen and my mom has dry skin she uses it too it has helped so much with my acne marks and her pigmentation. Skin becomes radiant. Must have. Watery texture.
L**A
Happy
Happy with the results of this serum. Protects skin from dryness. Very effective for dry skin and texture of serum is good blends well into skin and fragrance is good.
R**I
Very beneficial.
Really good product, give nourishment to skin and smoothens the texture.
M**I
Uaeleaa
Not good
T**N
Cosiq vit C Serum
Lightweight, non-sticky serum that absorbs fast. Brightens skin and helps fade dark spots—great for a natural glow. ✨ Must buy 💓
R**I
Good product, bad packaging.
What I like: 1. it doesn't make my oily skin any oilier 2. Airless pump packaging 3. usage of ethyl ascorbic acid which is both water n fat soluble 4. I have been using it for a month now and it works well What could be improved: 1. Plz include the % of niacinamide in the ingredient list , as some of us are allergic to it , at above 2% strength . 2. Plz include the pH of ur products on the packaging, as it wud make layering, daytime vs nighttime usage easier to determine. Update: 1. Leakage of product- The pump packaging does not work well and additional product seeps out from the sides everytime I use the pump. I have noticed the same issue with their other products, which use the same packaging. 2. Product gets oxidised, changes colour and loses efficacy about 3 months after opening it. So store it in d fridge if u want it to last longer. 3. Due to point 1 , I am reducing my rating to 3 stars now.
A**I
Glowing skin
It gives a nice healthy glow and works well under moisturize . I also liked the pump packaging as it feels hygienic and easy to use.
Trustpilot
1 month ago
3 days ago