Throughout the year, and especially during the hot summer months (May 1st - September 30th), you should seriously consider choosing 2nd Day Air or Next Day Air as your shipping option. This is because the micro-organisms contained in this product are delicate and may be perishable from prolonged exposure to intense heat (short-term exposure is OK, and not a concern).

Heat Sensitive Products shipping within the USA via 2nd Day Air may ship (depart from the warehouse) on Monday through Wednesday, but cannot ship out on Thursday nor Friday due to the potential for spoilage and lost potency. Similarly, such orders shipping within the USA via Next Day Air may ship Monday through Thursday, but cannot ship out on Friday.

Customers who choose to ship Heat Sensitive Products via Standard and Ground shipping services agree to take full responsibility for the condition of the products received. We can not and do not accept returns on Heat Sensitive products.

Note: Heat Sensitive products are NOT shipped with ice packs and are NOT shipped in Styrofoam containers. However, you can purchase these separately as an upgrade, and we will ship your Heat Sensitive Order accordingly.