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✨ Glow like you mean it — your skin’s new power move!
COS-IQ’s 20% Vitamin C Face Serum combines high-potency L-Ascorbic Acid with Vitamin E and Ferulic Acid to deliver advanced antioxidant protection, reducing oxidative damage by up to 41%. This 30ml lightweight, unscented gel serum visibly brightens skin, diminishes fine lines and wrinkles, and fades dark spots, making it an essential daily defense against environmental aging for all skin types.
| ASIN | B0BTR7SNV1 |
| Active Ingredients | vitamin_c |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | #166,384 in Beauty ( See Top 100 in Beauty ) #1,559 in Face Astringents & Toners |
| Brand | COS-IQ |
| Brand Name | COS-IQ |
| Customer Reviews | 4.1 out of 5 stars 321 Reviews |
| Item Dimensions | 20 x 20 x 30 millimeters |
| Item Form | Gel |
| Item Volume | 30 Milliliters |
| Item Weight | 30 Grams |
| Item dimensions L x W x H | 20 x 20 x 30 millimeters |
| Item volume | 30 Milliliters |
| Manufacturer | Cos-IQ® |
| Manufacturer Part Number | CEF20 |
| Model Number | CEF20 |
| Number of Items | 1 |
| Other Special Features of the Product | Unscented |
| Scent Name | Unscented |
| Skin Type | All |
| Special features | Unscented |
| Specific Uses For Product | Dark Spots, Wrinkles |
| Unit Count | 30.0 Milliliters |
M**I
Removed dull skin
The best vitamin c serum , removed my full skin and tan . And spot reduction
V**T
Noticeable Glow and Smooth Skin in Just a Week!
I've been using the COSIQ Vitamin CEF-20% Face Serum for a week now, and I'm genuinely impressed. The texture is lightweight and absorbs quickly without leaving any greasy residue. Within a few days, I noticed my skin looking brighter and more radiant. The serum claims to reduce dark spots and hyperpigmentation, and I can already see a slight improvement in my uneven skin tone. My fine lines also look a bit softer, and my skin feels more elastic and hydrated. I especially love that it uses Ethylated Ascorbic Acid – it's gentle but effective. Overall, a great product if you're looking for brighter, healthier-looking skin. Definitely worth trying!
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.
S**Y
Worst
Worst ever serum got rashes and itching
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
Trustpilot
2 weeks ago
1 month ago