Opti Crystal Liquid Crystal Eye Serum

Opti Crystal is COSMEDIX’s bestselling Liquid Crystal Eye Serum, expertly formulated to hydrate, illuminate, and visibly rejuvenate the delicate eye area. Designed for all skin types and tones, this lightweight yet powerful serum targets the most common signs of eye fatigue—dark circles, fine lines, dehydration, and loss of radiance—without irritation or heaviness.

At the core of Opti Crystal is COSMEDIX’s proprietary Liquid Crystal Technology, a biomimetic delivery system inspired by the skin’s own lipid structure. This advanced system allows hydration and active ingredients to absorb more efficiently, supporting optimal moisture balance while maintaining skin comfort and tolerance—an essential consideration for the fragile eye contour.

Opti Crystal features Spin Trap, an innovative antioxidant complex that neutralizes free radicals before they can damage the skin. By addressing oxidative stress caused by environmental aggressors such as pollution and blue light exposure, Spin Trap helps protect the eye area from premature aging while promoting a brighter, smoother appearance over time.

Hydration is central to the performance of Opti Crystal. The formula replenishes moisture levels to visibly plump fine lines and soften crepey texture, creating a smoother surface that reflects light more evenly for an instant brightening effect. Unlike heavier eye creams that can migrate or sit on the surface, Opti Crystal absorbs quickly and layers seamlessly under makeup, making it ideal for both morning and evening routines.

Beyond hydration, Opti Crystal works to visibly improve the appearance of dark circles and puffiness. Carefully selected brightening and skin-conditioning ingredients help support microcirculation and reduce the look of discoloration, while calming agents help minimize the appearance of under-eye fatigue. The result is an eye area that looks more rested, refreshed, and luminous—even on minimal sleep days.

COSMEDIX formulates with a skin health–first philosophy, and Opti Crystal reflects that commitment through its gentle yet results-driven approach. Free from unnecessary irritants and designed for daily use, this serum delivers visible correction without compromising skin tolerance, making it suitable for sensitive skin and post-treatment routines alike.

Opti Crystal is also designed to complement professional treatments and at-home regimens seamlessly. Whether used alone for daily hydration or layered with other targeted treatments, it supports long-term eye health while delivering immediate cosmetic benefits. Its versatile texture and clinical performance make it a favorite among estheticians and skincare professionals worldwide.

With consistent use, Opti Crystal helps transform the eye area into a smoother, brighter, and more resilient zone—one that reflects COSMEDIX’s commitment to clean, clinical, and luxurious skincare without compromise.

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.