How should I store the bath salt and how long does it keep? — Lavender Bath Salt 500 g - Zelana

Because the product is a salt base with lavender essential oil, the two things that can degrade it are moisture and air. Sea salt naturally absorbs moisture from the air, which can make the crystals clump together or harden into a block. The essential oil is volatile, meaning it slowly evaporates and loses intensity if the container is left open.

Practical storage advice:

• Keep the container tightly closed after every use.
• Store it in a dry place away from shower or bathtub steam. A bathroom cabinet is fine if it is not directly exposed to steam; a shelf in a bedroom or hallway is even better.
• Do not scoop the salt with wet hands or a wet spoon. Moisture introduced into the container is the main cause of clumping.
• If the salt does clump, it is still usable — break the lumps apart with a spoon before adding it to the bath.

As for shelf life: bath salts of this type generally keep well for a long time when stored correctly, because salt itself does not spoil. The practical limit is the lavender scent — over a very long period, the essential oil can fade and the product will simply smell less aromatic. No fixed expiration date is stated in the product information, so use your senses: if the lavender aroma has become very weak or the salt smells off, it has passed its best time. If the salt gets wet and stays damp, it can partially dissolve and become hard; that is not dangerous, but it makes the product harder to use.

Keep the product out of reach of small children, as with any bath product, and do not ingest it. It is intended for external bathing use only.