What precautions should I take before and after using the mask, and how should I store it?

If your skin is very reactive or easily irritated, perform a patch test before the first full‑face application: apply a small amount of the essence from the sachet to a discreet area (such as behind the ear or on the inner forearm) and wait 15–30 minutes. If no redness, itching or stinging occurs, you can proceed to use the mask on your face. Always avoid the eye area; if the mask accidentally contacts the eyes, rinse gently with water. During use, stop immediately if you experience redness, burning, stinging or any discomfort, and wash the area with water. For storage, keep the unopened sachets in a cool, dry place away from direct sunlight and heat sources. Do not freeze the product. Use the mask before the expiry date printed on the packaging, and once a sachet is opened, use it immediately—do not store the opened mask for later use.