Guide Supplement Storage

Supplements stored properly in a cool, dry place away from sunlight

Does supplement storage matter?

Yes. Heat, humidity, and direct sunlight can degrade nutrients over time. Proper storage maintains potency through the product's shelf life. The good news: storage requirements for most supplements are simple and easy to meet in a typical home.

The three enemies of supplement stability

1. Heat

High temperatures accelerate chemical degradation. Most supplements are tested for stability at room temperature (15-25°C). Storing supplements in a hot car, on a sunny windowsill, or near a radiator can reduce potency well before the expiry date.

2. Humidity

Moisture is the biggest threat to capsule integrity. HPMC vegetable capsules (used by Nutri-Leaf) are more moisture-resistant than gelatin but still degrade in humid environments. Bathroom cabinets — despite being common storage places — are poor choices due to shower steam.

3. Light

UV light degrades many vitamins, particularly vitamin B2 (riboflavin), vitamin C, and vitamin A. Opaque or amber packaging (used by Nutri-Leaf) provides protection, but only if the container stays closed between uses.

Best storage practices

  • Cool, dry place: A kitchen cupboard away from the cooker, or a bedroom drawer. Not the bathroom.
  • Original container: Keep supplements in their original packaging with the lid tightly closed. The container is designed to protect the product.
  • Out of direct sunlight: Any cupboard or drawer works. No windowsills.
  • Out of reach of children: Essential safety practice. Supplements can look appealing to children.
  • Don't refrigerate unless specified: Most supplements are formulated for room temperature. Refrigeration can introduce condensation.

Simple check: If you opened the container and the capsules look different (discoloured, stuck together, unusual smell) — they've likely been stored improperly. When in doubt, replace them.