# CosRx The Vitamin C 13 Serum 20ml

**URL:** https://aio.lv/en/product--cosrx-8809598455474--12520269
**Data updated:** 2026-06-12 15:39 (EEST)
**Category:** Face & Body Care
**Manufacturer:** CosRx
**Manufacturer code:** 8809598455474
**EAN:** 8809598455474
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cosrx-8809598455474--12520269

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.89 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

CosRx The Vitamin C 13 Serum is a concentrated facial treatment containing 13% pure Vitamin C. Designed to brighten skin tone, improve texture, and provide antioxidant protection, this serum helps reduce the appearance of dark spots and hyperpigmentation. Suitable for daily use, it supports a radiant complexion and promotes overall skin health. The lightweight formula absorbs quickly, making it an effective addition to any skincare routine.

## Long description

CosRx The Vitamin C 13 Serum is a high-performance facial treatment formulated with 13% pure Vitamin C to target dullness, uneven skin tone, and signs of oxidative stress. This potent serum works to brighten dark spots, diminish the appearance of post-acne marks, and refine skin texture for a smoother, more radiant complexion. By combining pure Vitamin C with a blend of supporting ingredients like hyaluronic acid, niacinamide, and tocotrienol, the formula provides comprehensive antioxidant protection while maintaining skin hydration and health.
Advantages
The primary benefit of this serum lies in its concentrated 13% pure Vitamin C formula, which effectively combats hyperpigmentation and redness to promote a more uniform skin tone. The inclusion of tocotrienol, a superior form of Vitamin E, works synergistically with Vitamin C to enhance antioxidant efficacy and protect the skin from environmental stressors. Additionally, the serum is enriched with soothing agents such as panthenol, allantoin, and licorice root extract, which help to minimize potential irritation often associated with high-potency Vitamin C products. The lightweight, fast-absorbing texture ensures that the serum integrates seamlessly into daily skincare routines without leaving a heavy or sticky residue.
Suitable for
Reducing the appearance of dark spots and hyperpigmentation
Improving overall skin brightness and radiance
Smoothing uneven skin texture and minimizing pore visibility
Providing antioxidant protection against environmental damage
Addressing post-acne marks and redness
When it may not be suitable
This product may not be suitable for individuals with extremely sensitive skin or those who have not previously used high-concentration Vitamin C treatments, as the active formula may cause temporary tingling or irritation. It is also not recommended for use on broken, irritated, or compromised skin barriers.
Key specifications
Concentration: 13% pure Vitamin C
pH level: 3.5
Key ingredients: Hyaluronic acid, tocotrienol (Vitamin E), niacinamide, caffeine, glutathione, panthenol, and licorice root extract
Volume: 20ml
Formula: Lightweight, fast-absorbing serum
How to use
After cleansing and toning, apply a few drops of the serum to the face, focusing on areas with dark spots or uneven texture. Gently massage the product into the skin using your fingertips until fully absorbed. For best results, follow with a moisturizer. If using during the day, it is essential to apply a broad-spectrum sunscreen as the final step of your skincare routine to protect the skin and maintain the efficacy of the Vitamin C.
What to consider before purchase
Perform a patch test before full facial application to check for sensitivity
Store the product in a cool, dark place away from direct sunlight to maintain ingredient stability
Use within the recommended period after opening to ensure maximum potency
Always pair with SPF during daytime use
Usage recommendations
For optimal results and to prevent oxidation, keep the bottle tightly closed and store it in a refrigerator or a cool, dark environment. If you are new to Vitamin C, start by using the product every other day to allow your skin to build tolerance.

## FAQ

### How much does the CosRx The Vitamin C 13 Serum 20ml cost, and is it available for purchase?

The price is 14.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CosRx products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CosRx service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12520269/68873023_large.webp