OCuSOFT Retaine MGD is the only ophthalmic emulsion to utilize Novasorb® — a proprietary cationic oil-in-water emulsion technology that exploits electrostatic attraction between the positively charged oil nanodroplets and the negatively charged ocular surface to deliver lipid-layer restoration precisely where tear film deficiency is worst. It is one of the most technologically advanced preservative-free artificial tears available without a prescription, designed for moderate to severe dry eye and Meibomian Gland Dysfunction (MGD).Active ingredients — Light Mineral Oil (0.5%) and Mineral Oil (0.5%) — replenish the lipid layer of the tear film that is deficient in MGD, directly reducing the evaporative tear loss that drives the symptoms of evaporative dry eye. Tyloxapol emulsifies the oil droplets. Poloxamer 188 stabilizes the emulsion. Cetalkonium Chloride (the preservative in some formulations) or the preservative-free version ensures sterility. The hypotonic formulation lowers tear osmolarity — addressing the osmotic stress that damages ocular surface epithelial cells in dry eye disease. Unlike aqueous-only drops, Retaine MGD addresses all three tear film layers: replenishes the lipid layer, adds moisture to the aqueous layer, and lubricates the mucin layer. Preservative-free single-use vials for sensitive eyes. FSA & HSA eligible. For external use only. Available at Beauty Riche — authorized OCuSOFT retailer with same-day shipping.