---
product_id: 509578356
title: "Cos-IQ 20% Vitamin C Serum, 30ml | With Vitamin E & Ferulic Acid | Glowing & Brightening Skin | Anti-Aging Serum for Wrinkles, Fine Lines & Dark Spots | All Skin Types | 30-Days Pack"
brand: "cos-iq"
price: "6215 Ft"
currency: HUF
in_stock: true
reviews_count: 8
category: "Cos Iq"
url: https://www.desertcart.hu/products/509578356-cos-iq-20-vitamin-c-serum-30ml-with-vitamin-e
store_origin: HU
region: Hungary
---

# Brightens & evens skin tone 20% pure Vitamin C potency 41% reduction in oxidative damage Cos-IQ 20% Vitamin C Serum, 30ml | With Vitamin E & Ferulic Acid | Glowing & Brightening Skin | Anti-Aging Serum for Wrinkles, Fine Lines & Dark Spots | All Skin Types | 30-Days Pack

**Brand:** cos-iq
**Price:** 6215 Ft
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock your skin’s future-proof glow today!

## Quick Answers

- **What is this?** Cos-IQ 20% Vitamin C Serum, 30ml | With Vitamin E & Ferulic Acid | Glowing & Brightening Skin | Anti-Aging Serum for Wrinkles, Fine Lines & Dark Spots | All Skin Types | 30-Days Pack by cos-iq
- **How much does it cost?** 6215 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/509578356-cos-iq-20-vitamin-c-serum-30ml-with-vitamin-e)

## Best For

- cos-iq enthusiasts

## Why This Product

- Trusted cos-iq brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Glow Formula:** Lightweight, non-greasy serum designed for all skin types—because flawless skin is for everyone in the room.
- • **Collagen Boosting Brilliance:** Stimulates collagen & elastin production to keep skin bouncy, smooth, and irresistibly touchable.
- • **Age Gracefully, Not Noticeably:** Clinically proven to visibly reduce wrinkles and restore firmness, so your skin tells a story of vitality, not age.
- • **Power-Packed Antioxidant Shield:** CEF combo (Vitamin C, E & Ferulic Acid) cuts environmental skin damage by 41%, keeping your glow guarded.
- • **Radiance That Commands Attention:** 20% ethylated Vitamin C penetrates deeply to erase dullness, fine lines, and dark spots for a luminous complexion.

## Overview

Cos-IQ 20% Vitamin C Serum is a scientifically formulated, antioxidant-rich serum combining 20% pure Vitamin C, 1% Vitamin E, and 0.5% Ferulic Acid. It delivers powerful anti-aging benefits by reducing wrinkles, fine lines, and dark spots while brightening and evening skin tone. Proven to reduce oxidative damage from UV rays and pollution by up to 41%, this lightweight serum suits all skin types and promotes collagen production for firmer, radiant skin in just 30 days.

## Description

Cos-IQ 20% Vitamin C Serum, 30ml | With Vitamin E & Ferulic Acid | Glowing & Brightening Skin | Anti-Aging Serum for Wrinkles, Fine Lines & Dark Spots | All Skin Types | 30-Days Pack : desertcart.in: Beauty

Review: Awesome product, highly recommended - I'm absolutely loving this skin care product. My skin feels smoother, looks brighter, and the fine lines have reduced significantly. The formula is lightweight, non-greasy, and absorbs quickly. Highly recommend for anyone looking for a effective and gentle solution for their skin concerns.
Review: Good serum for daily use - This Cos-IQ Vitamin C 20% Serum is a potent, science-backed antioxidant formula designed for brightening and anti-aging.

## Features

- Visible anti-aging benefits, such as the improvement of the appearance of lines and wrinkles, loss of firmness, and brightens skin’s complexion
- All round skin benefits brightens skin vitamin c in 3-o-ethyl ascorbic acid form has an immense brightening effect. It's formulated to make skin glow by removing blemishes and fine lines. Ethylated ascorbic acid is the most potent form vitamin c thats safe to use and penetrates the skin tone, giving it a radiant look.
- Repairs & rejuvenates fights hyperpigmentation hyperpigmentation is caused due to unprotected sun exposure neutralizes free radicals and prevents inflammatory processes to slow down photoaging that causes pigmentation has a direct effect on hyperpigmentation, age spots & sun spots. The antioxidant properties of vitamin c protect against UV, pollution and environment induced photodamage.
- Natural skin health evens skin tone active in fading pigmentation evens out skin tone protects the skin against premature aging triggered by free radicals that cause oxidative stress helps the skin produce collagen and elastin to make our skin soft and bouncy for both men and women maximum results guaranteed with our star ingredient.
- Package Content: 1 Vitamin C-20% Face Serum; Quantity: 30ml; Item Form: Serum

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BTR7SNV1 |
| ASIN  | B0BTR7SNV1 |
| Best Sellers Rank | #11,245 in Beauty ( See Top 100 in Beauty ) #380 in Serums |
| Country of Origin | India |
| Country of Origin  | India |
| Customer Reviews | 4.2 4.2 out of 5 stars (339) |
| Date First Available  | 2 February 2023 |
| Generic Name | Serum |
| Generic Name  | Serum |
| Item Dimensions LxWxH | 20 x 20 x 30 Millimeters |
| Item Dimensions LxWxH  | 20 x 20 x 30 Millimeters |
| Item Weight | 30 g |
| Item Weight  | 30 g |
| Item model number | CEF20 |
| Item model number  | CEF20 |
| Manufacturer | CEF features a synergistic antioxidant combination of 20% pure vitamin C (L-ascorbic acid), 1% vitamin E (alpha tocopherol), and 0.5% ferulic acid to enhance protection against environmental damage caused by free radicals that can contribute to atmospheric aging. CEF is now proven to reduce combined oxidative damage generated by UVA/UVB rays, ozone pollution, and diesel engine exhaust by up to 41%… |
| Manufacturer  | CEF features a synergistic antioxidant combination of 20% pure vitamin C (L-ascorbic acid), 1% vitamin E (alpha tocopherol), and 0.5% ferulic acid to enhance protection against environmental damage caused by free radicals that can contribute to atmospheric aging. CEF is now proven to reduce combined oxidative damage generated by UVA/UVB rays, ozone pollution, and diesel engine exhaust by up to 41%… |
| Net Quantity | 30.0 Milliliters |
| Net Quantity  | 30.0 Milliliters |
| Packer | Inlabs Lifesciences Pvt Ltd., Delhi 110095, Email: care@mycosiq.com |
| Packer  | Inlabs Lifesciences Pvt Ltd., Delhi 110095, Email: care@mycosiq.com |
| Product Dimensions | 2 x 2 x 3 cm; 30 g |
| Product Dimensions  | 2 x 2 x 3 cm; 30 g |

## Product Details

- **Active Ingredients:** Vitamin-C (3-O-Ethyl Ascorbic Acid) Ethylated Ascorbic Acid
- **Age Range (Description):** Adult
- **Brand:** COS-IQ
- **Item Form:** Gel
- **Item Volume:** 30 Millilitres
- **Item dimensions L x W x H:** 20 x 20 x 30 Millimeters
- **Number of Items:** 1
- **Scent:** Unscented
- **Skin Type:** All, Combination, Normal, Oily, Sensitive
- **Special Feature:** Dermatologically Tested, High-Dose Vitamin C, Not Tested On Animals, Unscented

## Images

![Cos-IQ 20% Vitamin C Serum, 30ml | With Vitamin E & Ferulic Acid | Glowing & Brightening Skin | Anti-Aging Serum for Wrinkles, Fine Lines & Dark Spots | All Skin Types | 30-Days Pack - Image 1](https://m.media-amazon.com/images/I/712k64z34SL.jpg)

## Questions & Answers

**Q: What is the percentage of Niacinamide in this serum?**
A: It contains 20%EAA ethylated ascorbic acid, 1% Alpha Tocopherol & .5% Ferulic acid, it's ingredients is showing niacinamide but there isn't any percentage of same...

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome product, highly recommended
*by S***B on 10 October 2025*

I'm absolutely loving this skin care product. My skin feels smoother, looks brighter, and the fine lines have reduced significantly. The formula is lightweight, non-greasy, and absorbs quickly. Highly recommend for anyone looking for a effective and gentle solution for their skin concerns.

### ⭐⭐⭐⭐⭐ Good serum for daily use
*by T***I on 6 January 2026*

This Cos-IQ Vitamin C 20% Serum is a potent, science-backed antioxidant formula designed for brightening and anti-aging.

### ⭐⭐⭐⭐ Happy
*by L***A on 21 September 2025*

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.

## Frequently Bought Together

- Cos-IQ 20% Vitamin C Serum, 30ml | With Vitamin E & Ferulic Acid | Glowing & Brightening Skin | Anti-Aging Serum for Wrinkles, Fine Lines & Dark Spots | All Skin Types | 30-Days Pack
- Cos-IQ 20% Niacinamide Face Serum For Clear Glowing Skin, Bright Skin, Reduces Dullness, Hydrates & Repairs Skin with Vit B3 & Hyaluronic Acid for Targets Acne Marks | For Women & Men | 30ml
- Cos-IQ CPM 2% Ceramides Moisturizer with Peptides for Intense Moisturizing and Skin Strengthening | Barrier Repair Cream | For Oily, Dry, Normal & Sensitive Skin | 100ml

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hu/products/509578356-cos-iq-20-vitamin-c-serum-30ml-with-vitamin-e](https://www.desertcart.hu/products/509578356-cos-iq-20-vitamin-c-serum-30ml-with-vitamin-e)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-04*