All our extracts have a few things in common, including stringent manufacturing standards.

Latex-free stoppers

People with allergies, such as allergic rhinitis, are at higher risk of developing a latex allergy.1 With this in mind, all of our high-quality vials are equipped with latex-free stoppers.

No phenol

Our glycerinated extracts do not use phenol in the extraction process. We offer a truly glycerinated product by utilizing 50% glycerin in our extraction process to avoid any potency issues or degradation of proteins. Phenol can denature proteins, including those in allergen extracts.2

Tree, weed and grass pollens

As with all extracts we manufacture, pollens go through a rigorous multi-step process to ensure the highest possible quality across all lots. We currently produce more than 70 pollen extracts from stringently vetted collectors.

Pollen raw material collection is especially sensitive and antigenic protein differences can be noted between various subspecies, varieties within a subspecies and even between different locations. Collecting pollen from the same plants year after year means greater finished product consistency. And, of course, pesticide use is not allowed on plants from which our pollen is collected.


We offer the following resources to support physicians treating pollen-allergic patients.


Molds are very adaptive and avoidance is difficult. That’s why immunotherapy is often the best treatment for mold-allergic patients. Mold spores are a common cause of nasal allergy, and many sinusitis patients are found to be allergic to molds, primarily Aspergillus fumigatus and Alternaria. Glycerinated and phenol free.  Current practice parameters recommend that the strongest concentrates available should be used for prick/puncture testing3 and therapy4—our molds are 1:10 w/v strength.


Our insect extracts, Fire Ant and Cockroach, are subject to the same high-quality manufacturing standards as all our extracts, including collectors who are highly vetted.


1 American College of Allergy, Asthma & Immunology. (2017). Latex Allergy. Retrieved from ACAAI:

2  H.S. Nelson. (2004). Preparing and Mixing Allergen Vaccines. In Lockey et. al, Allergens and Allergen Immunotherapy (3rd ed., p. 472)

3  Allergy diagnostic testing: an updated practice parameter. Ann. Allergy Asthma Immunol. 100: S1-S148, 2008.

4 Allergen immunotherapy: a practice parameter second update. J. Allergy Clin. Immunol. 120: S25-S85, 2007.