Histamine is a natural compound found in the body and in many fermented or aged foods — think sauerkraut, cured cheese, and pickled fish.

 It is broken down in the body by the enzyme diamine oxidase (DAO), an enzymatic process that requires specific micronutrient cofactors — namely vitamin B6, copper, and zinc.

Zinc also plays a role in normal protein synthesis, which matters because the body's own enzymes, including DAO, are proteins themselves.

Biogena's AH & Glutamine Formula delivers this targeted combination of cofactor nutrients and supplements it further with the amino acid L-glutamine and vitamin C.

 L-Glutamine supports a healthy gut lining and intestinal integrity, while vitamin C is included in its gentle, buffered calcium-ascorbate form — an antioxidant that is easy on the stomach and supports normal immune function.

This formula is crafted according to Biogena's Pure Substance Principle: every capsule is 100% free from artificial colors and flavors, titanium dioxide, genetic engineering, nanoparticles, and magnesium stearate.

The product is 100% vegan, gluten-free, and lactose-free, and every production batch undergoes independent laboratory testing (LEFO Institute) to verify purity and active ingredient content.

Biogena manufactures in-house at its Good Health World facility in Salzburg, Austria, which is FSSC 22000 certified.