Store all Reviva Labs products in a cool, dry location away from direct sunlight and heat — a bathroom cabinet or vanity drawer works well. Avoid storing products in a steamy shower environment or on a sunny windowsill, as heat and light can degrade active ingredients over time. Most products have a shelf life of 12–24 months unopened, and a Period After Opening (PAO) symbol (the open jar icon on the packaging) indicates how many months the product is best used after opening. As a general guide, serums and creams are typically best used within 12 months of opening. If you notice any changes in colour, texture, or scent, discontinue use.
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