TheraTears Lubricant Eye Gel Nighttime Sterile Units, 30 ct is a lubricating ophthalmic gel designed to provide soothing, longer-lasting relief from dry-eye symptoms, particularly during nighttime. Its liquid-gel formula contains 1% sodium carboxymethylcellulose, which acts as an eye lubricant and helps protect the eye surface from further irritation. The formula is preservative-free and electrolyte-balanced to help replicate the characteristics of natural tears. Its gel texture provides a longer-lasting protective film intended for nighttime dry-eye care.