---
product_id: 26721315
title: "COSMEDIX Under Eye Serum for Dark Circles & Puffiness, Opti Crystal - Lifting & Firming Liquid Serum for Fine Lines & Wrinkles - Brightening, Moisturizing, & Hydrating Anti Aging Eye Puffy Bags Serum"
price: "€ 203.47"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.gr/products/26721315-cosmedix-under-eye-serum-for-dark-circles-and-puffiness-opti
store_origin: GR
region: Greece
---

# 100% cruelty-free & clean formula Ultra-hydrating liquid crystal tech Powerful antioxidant blend COSMEDIX Under Eye Serum for Dark Circles & Puffiness, Opti Crystal - Lifting & Firming Liquid Serum for Fine Lines & Wrinkles - Brightening, Moisturizing, & Hydrating Anti Aging Eye Puffy Bags Serum

**Price:** € 203.47
**Availability:** ✅ In Stock

## Summary

> ✨ Brighten, Lift & Hydrate — Because Your Eyes Deserve the Spotlight

## Quick Answers

- **What is this?** COSMEDIX Under Eye Serum for Dark Circles & Puffiness, Opti Crystal - Lifting & Firming Liquid Serum for Fine Lines & Wrinkles - Brightening, Moisturizing, & Hydrating Anti Aging Eye Puffy Bags Serum
- **How much does it cost?** € 203.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/26721315-cosmedix-under-eye-serum-for-dark-circles-and-puffiness-opti)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hydrate Like a Pro:** Delivers intense moisture with advanced liquid crystal technology for visibly plumper under eyes.
- • **Day & Night Power Duo:** Versatile formula designed for AM and PM use, seamlessly layering under makeup without creasing.
- • **Fine Lines? Not Here.:** Smooths and firms delicate skin to reduce the appearance of wrinkles and crow’s feet.
- • **Clean Beauty, No Compromise:** Formulated with pure, gluten-free ingredients and 100% cruelty-free ethics for guilt-free glow.
- • **Erase Dark Circles & Puffiness:** Targets stubborn dark circles and puffiness to reveal a brighter, well-rested look.

## Overview

COSMEDIX Under Eye Serum harnesses liquid crystal technology and potent antioxidants like Spin Trap and Alpha Lipoic Acid to deeply hydrate, brighten, and firm the delicate eye area. This clean, cruelty-free serum reduces dark circles, puffiness, and fine lines, making it a must-have for a youthful, radiant look day and night.

## Description

desertcart.com: COSMEDIX Under Eye Serum for Dark Circles & Puffiness, Opti Crystal - Lifting & Firming Liquid Serum for Fine Lines & Wrinkles - Brightening, Moisturizing, & Hydrating Anti Aging Eye Puffy Bags Serum : Beauty & Personal Care

Review: really good! - This product is really good if you ask me. I bought it in march 2023, and I've been using it daily since then. The tube is TINY and it's not cheap but I've been using it for 9 months so value seems ok? I'm not even out of it yet but I'll reorder soon. I have basically no wrinkles under my eyes, and my skin is soft and moisturized there when I use it. I had some fine lines before but this product really works well. I see a lot of reviews talking about it being blue and shiny and the color not going away, as well as sticky, and not working with make up well. They may not be using it well because I have none of these problems. IMPORTANT: I use it in the morning before make up only. It will be sticky if you only use this. After washing my face, I mist with water and apply a vitamin C&E serum, followed by lightweight cica moisturizer all over. Once that dries, I squeeze 4-5 "flat dots" of COSMEDIX Opti Crystal Liquid Eye Serum under my eyes. I do this by squeezing a tiny bit and dabbing it directly onto my skin from the tube itself. I say "flat dots" because you need a small amount, not a blob of it. it's super important not to use too much. After that I pat it out all over under my eye with my ring finger. Once it's all spread out, if it's still quite blue, you have too much. at this point I see a shiny/sticky appearance, but not blue or aurora. Next, I apply matte BB cream and use the same patting out technique under my eye until desired coverage is achieved. BB cream is then followed by mineral foundation powder and by this point there is zero stickiness, my make up holds up well throughout the day with no creasing and maintaining a smooth appearance. I hope this helps.
Review: Five Stars and it's WELL WORTH the money - I had this sitting in my cart for at least 4 months before I purchased it. The price tag had me a little apprehensive, but I finally ran out of my old stuff and thought I'd give this a try. It DOES NOT disappoint! First of all, you use such a tiny amount each night that I'm thinking this tube will last me at least 6 months. The quality is absolutely amazing... I can't say enough nice things about it. It goes on as this gorgeous pearl type color and immediately hydrates your under eyes. It's helped my dark bags look a little less prominent and it also has helped with the appearance of my crows feet. I would recommend everyone gives this a try! I'm actually going to look at their other skin care products to see if they have a full face cream I loved this THAT much.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B01CPSP7PM |
| Best Sellers Rank | #71,519 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #170 in Eye Treatment Serums |
| Customer Reviews | 4.3 4.3 out of 5 stars (205) |
| Department  | Unisex-Adult |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 931402010 |
| Manufacturer  | COSMEDIX |
| Product Dimensions  | 3.81 x 1 x 0.44 inches; 0.2 ounces |
| UPC  | 847137020200 847137052652 |

## Product Details

- **Scent:** Coconut
- **Skin Type:** All
- **Special Ingredients:** Antioxidants
- **Use for:** Face

## Images

![COSMEDIX Under Eye Serum for Dark Circles & Puffiness, Opti Crystal - Lifting & Firming Liquid Serum for Fine Lines & Wrinkles - Brightening, Moisturizing, & Hydrating Anti Aging Eye Puffy Bags Serum - Image 1](https://m.media-amazon.com/images/I/71UeE1pjmRL.jpg)

## Questions & Answers

**Q: Do you put a concealer on top?**
A: Yes, the optic crystal serum serves as a wonderful base to keep the concealer from looking dry and increasing the look of fine lines.

**Q: How many times a day should i use it (am & pm)?**
A: Once a day or even ever other day…..

**Q: Is this real? why is it half the cost of the same product on the manufacturer's website?**
A: I was directed COSMEDIX's Amazon store to purchase the Opti Liquid Crystal Eye Serum ($95) by using a link in an article I read about it on the InStyle magazine website. The article also included a link to the COSMEDIX's own website as well (price was $104 there). I don't believe that InStyle magazine would be publishing links on their website to Amazon sellers that were selling counterfeit (read ILLEGAL & DANGEROUS) products. Also I'm quite sure whenever those type of review/promotional articles are written about products on these websites - the companies are very much aware of the article being published and any links to their products in said articles. So I wouldn't worry about the legitimacy of this particular product. Hope this helps!!

**Q: How many applications are in the tube**
A: I use this product at bedtime and 1 tube lasts about 4 months. It only takes a very small amount (less than the size of sesame seed) to get excellent results.

## Customer Reviews

### ⭐⭐⭐⭐⭐ really good!
*by み***や on November 5, 2023*

This product is really good if you ask me. I bought it in march 2023, and I've been using it daily since then. The tube is TINY and it's not cheap but I've been using it for 9 months so value seems ok? I'm not even out of it yet but I'll reorder soon. I have basically no wrinkles under my eyes, and my skin is soft and moisturized there when I use it. I had some fine lines before but this product really works well. I see a lot of reviews talking about it being blue and shiny and the color not going away, as well as sticky, and not working with make up well. They may not be using it well because I have none of these problems. IMPORTANT: I use it in the morning before make up only. It will be sticky if you only use this. After washing my face, I mist with water and apply a vitamin C&E serum, followed by lightweight cica moisturizer all over. Once that dries, I squeeze 4-5 "flat dots" of COSMEDIX Opti Crystal Liquid Eye Serum under my eyes. I do this by squeezing a tiny bit and dabbing it directly onto my skin from the tube itself. I say "flat dots" because you need a small amount, not a blob of it. it's super important not to use too much. After that I pat it out all over under my eye with my ring finger. Once it's all spread out, if it's still quite blue, you have too much. at this point I see a shiny/sticky appearance, but not blue or aurora. Next, I apply matte BB cream and use the same patting out technique under my eye until desired coverage is achieved. BB cream is then followed by mineral foundation powder and by this point there is zero stickiness, my make up holds up well throughout the day with no creasing and maintaining a smooth appearance. I hope this helps.

### ⭐⭐⭐⭐⭐ Five Stars and it's WELL WORTH the money
*by A***L on March 27, 2018*

I had this sitting in my cart for at least 4 months before I purchased it. The price tag had me a little apprehensive, but I finally ran out of my old stuff and thought I'd give this a try. It DOES NOT disappoint! First of all, you use such a tiny amount each night that I'm thinking this tube will last me at least 6 months. The quality is absolutely amazing... I can't say enough nice things about it. It goes on as this gorgeous pearl type color and immediately hydrates your under eyes. It's helped my dark bags look a little less prominent and it also has helped with the appearance of my crows feet. I would recommend everyone gives this a try! I'm actually going to look at their other skin care products to see if they have a full face cream I loved this THAT much.

### ⭐⭐⭐⭐⭐ Magic
*by B***L on September 16, 2025*

There is a learning curve to applying this eye serum but just to say, less is more. You don’t need much. I let it sit for a few minutes and then continue to tap it in. It is sticky but eventually sinks in. I’m an esthetician and have tried soooo many eye products and this one has impressed me the most as far as how quickly you see results. I’m 53 and when I wear eye makeup it sometimes settles into the inner corner wrinkles that are normal for my age. This eye serum has solved that issue. I look in the mirror stunned. I also think it helps prolong my eye makeup during the day and simply firms the delicate skin around the eyes. For now I’m only using this product during the day and another eye cream at night. This product is pricey but with how small of an amount you need, this will last you a good while. I will be recommending this to clients.

## Frequently Bought Together

- COSMEDIX Under Eye Serum for Dark Circles & Puffiness, Opti Crystal - Lifting & Firming Liquid Serum for Fine Lines & Wrinkles - Brightening, Moisturizing, & Hydrating Anti Aging Eye Puffy Bags Serum
- COSMEDIX Hydrating Face Wash for Women & Men, Benefit Clean Gentle Cleanser Gel - Moisturizing Face Cleanser & Pore Minimizer For All Skin Types - Facial Cleanser Makeup Remover for Glowing Skin
- COSMEDIX Harmonize Microbiome Boosting Moisturizer - Ultra-Light Prebiotic Facial Skin Care Products for Softer, Smoother & Vibrant-Looking Skin - Face Lotion for All Skin Types

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-20*