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Our Products


At HollisterStier Allergy, we are a leader in providing high quality products to the global allergy market for the diagnosis and treatment of allergies.

If you’re looking for North America’s sole provider of venom immunotherapy products, the Acetone Precipitated (AP) line of extracts, or other exclusives like the innovative ComfortTen®Multiple Skin Test System, you’ve come to the right place.

We manufacture a complete line of allergenic products, including phenol free extracts, for diagnostic testing and immunotherapy, and complete skin testing systems.

EXTRACTS
Tree, weed, and grass pollens, as well as venom, insects, pet dander, and molds

SKIN TEST SUPPLIES
ComforTen®, Quintest®
and Quintip®

With nearly 100 years of leadership in research, extract production, and immunotherapy products, doctors around the world choose HollisterStier Allergy. Our promise has always been to provide quality products, services, and resources to physicians and allergy patients – and we remain committed to those ideals today.

News & Events

Venom Immunotherapy Supply Update

One year ago, we announced that our company had become the sole provider of venom immunotherapy products in the U.S.—a position brought about by the departure from the market of the only other supplier. Read More.

Featured Product

AP Dog

AP Dog

Did you know that dog hair and dander follows the allergic patient almost everywhere, even in newly constructed homes? Did you know that AP Dog is the only dog extract that can provide efficacious dosing? Do you have patients that are allergic to their own dog but can’t part with their furry pet? If you answered yes to any of these questions, learn more about AP Dog and how it will benefit your dog allergic patients.

About HollisterStier

With nearly 100 years of leadership in research, extract production, and immunotherapy products, HollisterStier Allergy is the number-one choice of allergists around the world.

Our promise has always been to provide the best products, service, and resources for both physicians and patients – and we remain committed to those ideals today.