Photo of a rex cat and chocolate lab dog sharing a large gray pet bed

About Us

History of VetIMMUNE, LLC

VetImmune, LLC, was established in 2013 to distribute innovative health products focusing on the immune system in cats. The company's founders, devoted “cat people,” viewed VetImmune, LLC as the platform to offer unique and ground-breaking products that benefited their cats and the potential to improve the health and lives of all cats.

In 2013, VetImmune, LLC started distributing Polyprenyl Immunostimulant™, a treatment for feline rhinotracheitis and in 2017, they added to its product line “Crazy Cat Lady Battle Paint,” a topical antiseptic for minor skin lacerations. In 2024, the company began distributing VetImmune® PI, a unique health supplement that enhances innate immune response in cats and dogs.

Highest Standards of Manufacturing


All products offered by VetImmune, LLC are made in the US at a manufacturing facility inspected by the USDA. Quality control is done according to the strict guidelines of good manufacturing, with every bottle inspected manually by experts before being offered in the store.

collage of three photos - left most photo is a man in a lab coat, hair net, glasses, mask, and gloves working under a sterile hood. - top right photo is a man in a lab coat, hair net, glasses, mask, and gloves working on steel table with brown bottles of VetIMMUNE PI - lower right photo is a man and a woman in lab coats, hairnets, glasses, mask, and gloves with their back to the camera working in a sterile hood.

The Best-Researched Supplement

VetImmune® PI is arguably the best-researched supplement, with many papers published by leading veterinary research universities in the US and UK. Based on continuing scientific research, VetImmune, LLC keeps adding new products to its line. Head over to our Frequently Asked Questions page for links to all of the studies.

Frequently Asked Questions

Founder's Cats

Photo of a orange and white cat on a pillow with owner's arm in frame - business owner's cat
Photo of a healthy beautiful long hair tabby cat laying on a rug - business owner's cat
Photo of Kitel - black and white cat on a cat sized lounge - business owner's cat

Our Policies

VetImmune, LLC is committed to delivering the best and unique products to sustain cats’ and dogs’ health by enhancing their innate immune response. We enjoy interacting with our customers and are always ready to answer any questions and participate in webinars.

Due to the nature of our products, we accept returns within five (5) business days from the product purchase date, provided that the product has not been frozen or opened and is in its original packaging. The return shipment must be paid for by the customer. We cannot refund shipping costs. Please contact us at orders@vetimmune.com for any returns.