• Cosmedix Opti Crystal Liquid Crystal Eye Serum for dark circles, dehydration, fine lines and crow’s feet.
  • Cosmedix Opti Crystal Liquid Crystal Eye Serum with award-winning Liquid Crystal Technology for brighter, smoother under-eyes.
  • Cosmedix Opti Crystal Liquid Crystal Eye Serum with biomimetic hydration technology to plump fine lines and soften crow’s feet.
  • Cosmedix Opti Crystal Liquid Crystal Eye Serum concentrated applicator for targeted treatment of dry, crepey under-eyes.
  • Cosmedix Opti Crystal Liquid Crystal Eye Serum iridescent texture for lasting hydration and luminous eye contours.
  • Cosmedix Opti Crystal Liquid Crystal Eye Serum applied around the eye area to brighten dark circles and visible fatigue.
  • Cosmedix Opti Crystal Liquid Crystal Eye Serum with Spin Trap and copper gluconate for firmer, smoother-looking under-eyes.
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Cosmedix

Cosmedix Opti Crystal Liquid Crystal Eye Serum

Cosmedix Opti Crystal Liquid Crystal Eye Serum

$156.75 AUD
$209.00 AUD $156.75 AUD
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Cosmedix Opti Crystal Liquid Crystal Eye Serum is an intensely hydrating eye treatment that helps brighten dark circles, plump fine lines and soften crow’s feet for a smoother, more luminous eye contour.

Powered by biomimetic Liquid Crystal Technology, this silky oil-serum replenishes the delicate eye area with lasting moisture while supporting the skin’s natural lipid barrier for improved comfort and resilience. Spin Trap provides advanced antioxidant defence against environmental stressors, while copper gluconate and a conditioning blend of rice bran, moringa, jojoba and botanical extracts help promote firmer, healthier-looking skin. The iridescent formula reflects light to immediately enhance radiance while visibly improving dryness, crepey texture and signs of fatigue with continued use. 

Good to Know: Its concentrated oil-serum texture requires only a pin-sized amount for both eyes, making precise application essential to prevent excess product from migrating.

Product Size: 7g

What We Love

✓ Delivers intensive, long-lasting hydration
✓ Visibly brightens dark circles and tired-looking eyes
✓ Plumps fine lines and softens crow’s feet
✓ Helps improve dry, crepey under-eye texture
✓ Leaves the eye contour with a luminous, dewy finish

Pair It With

Cosmedix Lumi Crystal Liquid Crystal Lip Hydrator

Cosmedix Surge Serum

Cosmedix Restore Mask

Key Ingredients

  • Liquid Crystal Technology - Biomimetic cholesteryl esters replicate elements of the skin’s natural lipid structure to deliver deep, lasting hydration and support the moisture barrier.
  • Spin Trap - An advanced antioxidant that helps neutralise free radicals and protect the delicate eye area against environmental oxidative stress.
  • Copper Gluconate - Supports a firmer, more resilient appearance while helping maintain healthy-looking skin.

How To Use

Morning and evening, dispense a pin-sized amount of Cosmedix Opti Crystal Liquid Crystal Eye Serum onto the ring finger and gently pat around the eye contour, avoiding direct contact with the eyes.

If applying under eye makeup, allow to absorb for 5-10 minutes before application.

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★★★★★

“This gives my eye area a rested, luminous look without relying on concealer. It feels rich but still sits beautifully beneath makeup.”

Rebecca, Hobart TAS

★★★★★

“A tiny amount is enough for both eyes. It has made a noticeable difference to the fine lines that become more visible when my skin is dehydrated.”

Melissa, Brisbane QLD

★★★★★

“The texture is unlike any other eye serum I have used. My under-eyes look smoother and far less dry, and the radiance is immediate.”

Claire, Brighton VIC