Thealoz is a preservative-free dry eye range formulated with trehalose, a naturally occurring disaccharide that helps protect and stabilise the ocular surface. The collection at Ronaghan's Pharmacy includes Thealoz Duo drops, which combine trehalose with sodium hyaluronate to support tear film stability, and Thealoz Duo Gel, a thicker formulation suited to more persistent or overnight dryness. Both formats are available in multi-dose bottles with a unique airless dispensing system that maintains sterility without the need for preservatives, making them suitable for contact lens wearers and those with sensitive eyes. Choosing between the drops and the gel comes down to symptom severity and timing. The drops work well for daytime use and mild-to-moderate dryness, while the gel is better suited to more severe discomfort or as a night-time application. Thealoz Duo can be used throughout the day as needed. If you are currently using prescribed eye medication, allow at least fifteen minutes between applications. Ronaghan's Pharmacy stocks a carefully selected range of ocular lubricants and dry eye products, and Thealoz sits at the clinical end of that range. Browse the products below to find the format that fits your symptoms and daily routine.