Refrigerated Shipping (Optional Upgrade)

For optimal product stability, especially during warm or humid weather, we recommend FedEx Overnight shipping with ice packs and a cooler. It’s a $29.99 flat rate within the continental U.S., already $10–$15 below our actual cost.

Free Ground Shipping (Default Option)

We also offer free ground shipping within the U.S. year-round (without ice packs or a cooler). This option is generally fine in cooler weather, but we don’t recommend it during periods of high heat.

Orders ship from Cleveland, Ohio, typically Monday through Wednesday to avoid weekend delays.

International Orders

We offer non-refrigerated international shipping for an additional fee. Refrigerated shipping is not available for international destinations.

Important Notes

• 
  Overnight orders must ship to a street address (no PO boxes).
  
• 
  Refrigerated items cannot be returned or refunded.

100% Bifidobacterium strains This high-potency blend includes four extensively researched Bifidobacterium strains that reside primarily in the mucosal lining near the terminus of the small intestine, as well as in the colon and the genitourinary tract. These strains assist in creating a balanced intestinal environment by crowding out pathogenic bacteria and producing acetic and lactic acids that help inhibit the growth of unfriendly flora. Studies show that toxin-producing Clostridium species can accumulate in the bowel when levels of Bifidobacteria have decreased. Formulated with 10+ billion CFUs per capsule, Factor 4 utilizes InTactic technology and is an excellent choice for infants, children, and the elderly, or when tests reveal low levels of Bifidobacteria.

Free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, and soybeans. Contains no artificial colors, flavors, or preservatives.

Adults: 1 capsule daily with food or as directed by a healthcare professional. Children: As directed by a healthcare professional.