How long does a 150 ml bottle typically last, and what's the best way to store it so the micellar system stays effective?

A 150 ml bottle typically provides 2–3 months of use when used once daily as an evening first cleanse (about 1.5–2 ml per application, or 2–3 pumps). If you also use it in the morning or need multiple pumps for heavy makeup, expect closer to 6–8 weeks. The pump dispenser helps control dosage and limits air exposure, which preserves the surfactant structure.

Micellar systems are stable at normal room temperatures (15–25 °C). Avoid storing the bottle in direct sunlight, near a radiator, or in a hot bathroom where temperatures regularly exceed 30 °C — prolonged heat can cause the micelles to aggregate or the hyaluronate to degrade, reducing cleansing efficiency and skin-feel benefits. Freezing is also not recommended; if the product accidentally freezes, let it return to room temperature slowly and shake gently before use, but efficacy may be compromised.

Keep the cap tightly closed between uses to prevent evaporation and contamination. The formula uses a preservation system compatible with the micellar structure, but introducing water or leaving the pump uncapped for extended periods can challenge the preservative. If the gel develops an off smell, changes color, or separates into layers, discard it. The period-after-opening (PAO) symbol on the packaging indicates the manufacturer's guaranteed stability window once opened — typically 12 months for this type of product.