---
product_id: 26721315
title: "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"
brand: "cosmedix"
price: "807 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Cosmedix"
url: https://www.desertcart.pl/products/26721315-under-eye-serum-for-dark-circles-and-puffiness-opti-crystal
store_origin: PL
region: Poland
---

# Targets fine lines & wrinkles Ultra-hydrating liquid crystal serum Powerful antioxidant protection 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

**Brand:** cosmedix
**Price:** 807 zł
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock radiant, youthful eyes — because your glow deserves the spotlight!

## Quick Answers

- **What is this?** 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 by cosmedix
- **How much does it cost?** 807 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/26721315-under-eye-serum-for-dark-circles-and-puffiness-opti-crystal)

## Best For

- cosmedix enthusiasts

## Why This Product

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

## Key Features

- • **Youthful Lift:** Smooths fine lines and firms delicate skin to restore a rested, radiant appearance.
- • **Brighten & Defend:** Fights dark circles and puffiness with a potent blend of Spin Trap and Alpha Lipoic Acid antioxidants.
- • **Clean & Conscious:** Cruelty-free, gluten-free, and crafted with pure, plant-based ingredients for guilt-free luxury skincare.
- • **Day & Night Ready:** Lightweight formula designed for AM/PM use, seamlessly layering under makeup without creasing.
- • **Hydrate Like a Pro:** Delivers deep, lasting moisture with advanced liquid crystal technology for visibly plumper under eyes.

## Overview

COSMEDIX Opti Crystal Under Eye Serum is a luxurious, ultra-hydrating formula that reduces dark circles, puffiness, fine lines, and wrinkles. Powered by liquid crystal technology and antioxidants like Spin Trap and Alpha Lipoic Acid, it delivers deep moisture and antioxidant defense. Suitable for all skin types, this clean, cruelty-free serum works day and night, absorbing quickly and layering perfectly under makeup for a refreshed, youthful look.

## Description

Product Description Discover the transformative power of COSMEDIX Under Eye Serum for Dark Circles & Puffiness. This luxurious serum is specially formulated with liquid crystal technology and antioxidants to target dark circles, fine lines, and puffiness. Its hydrating formula rejuvenates the delicate eye area, leaving you with a brighter, more youthful complexion. Perfect for day and night use, this cruelty-free serum is a must-have in your skincare routine. Experience the difference with COSMEDIX and reveal your most radiant eyes. Brand Story COSMEDIX skincare is formulated with the cleanest, most potent plant-based ingredients, Nobel Prize-winning chemistry and gentle actives to deliver safe, effective results. Trusted by dermatologists and aestheticians worldwide.

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.

## Features

- Ultra-Hydrating Eye Serum: Opti Crystal Eye Serum is a luxurious Liquid Crystal serum specially formulated with powerhouse ingredients to reduce the look of dark circles and improve the look of fine lines, wrinkles and sagging around the eyes.
- For a Rested, Youthful Appearance: Infused with soothing coconut and liquid crystal technology to deliver unprecedented hydration to the delicate eye area. Enriched with powerful antioxidants including Spin Trap and Alpha Lipoic Acid, Opti Crystal.
- AM and PM Serum: Can be used day and night. Gently dispense a pin-sized drop onto your ring finger and pat around eye area. If using under makeup, apply an even smaller amount and allow it to soak into the skin for 5-10 minutes before application.
- Clean Before it Was Cool: What you put on your skin is just important as what you put in your body. As pioneers in clean skin care, we've always prioritized the use of the purest ingredients. We're also 100% cruelty-free—no exceptions, ever.
- Why Cosmedix: Since our inception in 1999, we've been driven by one guiding principle: the desire to deliver gentle, effective and cruelty-free skin care solutions for all.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01CPSP7PM |
| Best Sellers Rank | #70,946 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #172 in Eye Treatment Serums |
| Brand | COSMEDIX |
| Brand Name | COSMEDIX |
| Customer Reviews | 4.3 out of 5 stars 205 Reviews |
| Global Trade Identification Number | 00847137052652 |
| Included Components | 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 |
| Item Form | Creams, Gels and Lotions |
| Item Height | 0.44 inches |
| Item Type Name | 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 |
| Item Volume | 0.05 Fluid Ounces |
| Item Weight | 0.2 Ounces |
| Manufacturer | COSMEDIX |
| Material Features | Antioxidant |
| Material Type Free | Gluten Free |
| Number of Items | 1 |
| Product Benefits | Encourages the appearance of firmer skin, helps fight harmful free radicals, and provides deep, lasting hydration. Product Benefits Encourages the appearance of firmer skin, helps fight harmful free radicals, and provides deep, lasting hydration. See more |
| Recommended Uses For Product | dermatology |
| Scent | Coconut |
| Scent Name | Coconut |
| Skin Type | All |
| Special Ingredients | Antioxidants |
| Target Use Body Part | Face |
| UPC | 847137020200 847137052652 |
| Use for | Face |
| Warranty Description | Warranty |

## Product Details

- **Skin Type:** All
- **Product Benefits:** Encourages the appearance of firmer skin, helps fight harmful free radicals, and provides deep, lasting hydration.
- **Use for:** Face
- **Scent:** Coconut
- **Special Ingredients:** Antioxidants

## Images

![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 Poland*
*Store origin: PL*
*Last updated: 2026-01-25*