A heat-sensitive item is any product that may be modified by high temperatures or long-term heat exposure. Many different products can be considered heat-sensitive and the concern with exposure can be quite variable.
We recommend our priority delivery option for all heat-sensitive products to reduce time in transit. Heat-sensitive products are labeled for you in checkout to help with delivery method selection.
The heat-sensitive product alert and recommended shipping option displayed during checkout.
Note: Overnight shipping is currently unavailable due to extended delivery times reported by our couriers.
Probiotics lose colony-forming units (CFUs) over time when exposed to elevated temperatures. However, probiotics range in temperature sensitivities, in that some are shelf-stable and do not require refrigeration, while others require ice packs for shipping and refrigeration for storage.
Fish oils, flaxseed oils, and other oil-based products may be labeled heat-sensitive as a precaution to prevent spoilage. Proper storage becomes imperative after opening.
Some softgels that are exposed to high temperatures can become very soft and stick together, thereby making them heat-sensitive.
Storing heat-sensitive products at home
While the packaging for shipping is important for your heat-sensitive item, long-term storage is by far the most significant factor. A container may be stored in your home for months and this will play a major factor in the shelf life of heat-sensitive products.
The following are general guidelines that we suggest you follow:
- Follow the storage instructions on the bottle – not all heat-sensitive products will need refrigeration.
- Moisture leads to mold – leave cotton balls or silicon packets inside the bottle.
- Close the lids on all containers tightly.
- Avoid storage in the bathroom or near the stove in the kitchen.