The listings show mineral oil and propylene glycol as the primary active ingredients. One product description also lists phospholipids alongside propylene glycol and mineral oil.
They address common symptoms such as sore, watery, stinging, burning, tired, dry, and irritated eyes. The Systane Complete formulation is described for aqueous‑deficient, evaporative, and mixed dry eye.
The preservative‑free Complete drops are described as providing up to 8 hours of dry‑eye relief from a single drop.
Gel drops: instill 1–2 drops in the affected eye(s) as needed; they can be used daily. Nighttime ointment: dispense from the tube and apply at bedtime for overnight moisture retention.
Reviewer summaries report that the ointment effectively relieves dry‑eye symptoms and helps keep eyes moist. Reviews of the drops note they soothe irritation quickly and provide noticeable, sometimes long‑lasting relief that can extend through the morning and persist with continued use over years.