How should I store the tube to keep the cloudberry extract and hyaluronic acid effective over time?

Natural berry extracts and hyaluronic acid are stable in a properly preserved emulsion but degrade faster with heat and UV exposure. Store the 75 ml tube at room temperature (15–25 °C) with the cap tightly closed after each use. Do not refrigerate — temperature cycling can cause phase separation in the oil-in-water emulsion, altering texture and potentially reducing the even distribution of active ingredients. If the cream develops an off smell, changes color to a darker brown, or separates into watery and oily layers, discard it; these are signs the preservation system has been compromised. The airless or squeeze-tube packaging (whichever format this SKU uses) limits air contact, but always dispense with clean fingers or a spatula rather than dipping directly into an open jar to minimize microbial introduction. A tube used daily typically finishes well within the 12-month period-after-opening window.