Do you put a concealer on top?

Yes, the optic crystal serum serves as a wonderful base to keep the concealer from looking dry and increasing the look of fine lines.

How many times a day should i use it (am & pm)?

Once a day or even ever other day…..

Is this real? why is it half the cost of the same product on the manufacturer's website?

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!!

How many applications are in the tube

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.

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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 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

Product ID: 26721315

Details

Scent
Coconut
Skin Type
All
Special Ingredients
Antioxidants
Use for
Face

⚡Powerful antioxidants Spin Trap & Alpha Lipoic Acid

🌙AM & PM use for 24/7 care

💧Ultra-hydrating formula

743.88 DT

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Description

✨ Bright eyes, bold moves — because your glow waits for no one!

FIRM BRIGHTEN - Visibly lifts, firms, and brightens to reduce puffiness and dark circles.
HYDRATE REVIVE - Delivers unprecedented moisture to erase tired eyes and fine lines.
CLEAN CRUELTY FREE - Formulated with pure ingredients, 100% cruelty-free for conscious skincare lovers.
DAY TO NIGHT DEFENSE - Lightweight formula perfect for morning and evening routines, even under makeup.
ANTIOXIDANT POWERHOUSE - Fights free radicals with Spin Trap and Alpha Lipoic Acid for youthful skin.

COSMEDIX Opti Crystal Under Eye Serum is a luxurious, ultra-hydrating liquid serum designed to visibly reduce dark circles, puffiness, fine lines, and wrinkles. Enriched with potent antioxidants like Spin Trap and Alpha Lipoic Acid, it provides 24/7 firming and brightening benefits suitable for all skin types. This clean, cruelty-free formula supports a youthful, rested appearance and seamlessly fits into AM and PM skincare routines.

Specifications

ASIN	B01CPSP7PM
ASIN	B01CPSP7PM
Best Sellers Rank	#68,885 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #170 in Eye Treatment Serums
Brand Name	COSMEDIX
Customer Reviews	4.1 4.1 out of 5 stars (216)
Department	Unisex-Adult
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 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	5.67 g
Item model number	931402010
Manufacturer	COSMEDIX
Manufacturer	COSMEDIX
Manufacturer Part Number	8770310
Material Features	Antioxidant
Material Type Free	Gluten Free
Model Number	931402010
Number of Items	1
Product Benefits	Encourages the appearance of firmer skin, helps fight harmful free radicals, and provides deep, lasting hydration.
Product Dimensions	3.81 x 1 x 0.44 inches; 0.2 ounces
Recommended Uses For Product	dermatology
Scent Name	Coconut
Skin Type	All
Special Ingredients	Antioxidants
Target Use Body Part	Face
UPC	847137020200 847137052652
UPC	847137020200 847137052652
Warranty Description	Warranty

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743.88 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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