Pet owners struggling with anxious dogs now have a faster, cleaner solution thanks to a revolutionary product that works in under two minutes. PetPax Co. has developed SupplaMelts, oral thin films similar to breath strips that dissolve quickly in a dog’s cheek pocket to deliver calming ingredients without the hassle of traditional pills or treats.
The company’s flagship product, ZenMelts for canine anxiety, addresses a common pain point for pet parents: the stress of watching their dogs suffer through thunderstorms, fireworks, vet visits, or other anxiety-inducing situations. Unlike conventional calming treats that can take 30-45 minutes to take effect, ZenMelts begin working within 60-90 seconds, a massive help to pet parents who are in a bind with their stressed out dogs..
This innovation comes from a personal place for founders Nathan and Anthony, who met during their MBA program at Babson College. Both are dog dads to anxious dogs and experienced firsthand the limitations of existing solutions. Nathan faced potential fines from his building due to his dogs’ separation anxiety, while Anthony’s dog would anxiously hump his bed whenever guests visited – something a little embarrassing, but dogs show anxiety in many different ways.
What sets PetPax Co. apart is their commitment to clean ingredients and the speed of action that their SupplaMelts take. ZenMelts contain just eight ingredients, including chamomile, l-theanine, tryptophan, and melatonin – a stark contrast to competitors’ products that often contain 25+ ingredients with that often contain potentially harmful fillers and chemicals. This minimalist approach reflects the company’s philosophy that dogs need only essential, high-quality ingredients for optimal wellness.
The company has expanded its product line to include DentalMelts for oral health, addressing another common challenge for pet owners – bad breath and its root causes. With studies showing over 80% of pet parents don’t brush their dogs’ teeth properly, or at all, DentalMelts offer a simple solution that fights bacteria causing plaque and tartar while instantly freshening bad breath.
Since their launch, PetPax Co. has seen impressive growth, reporting a 200% increase from Q1 2024 to Q1 2025. The company has garnered recognition through several prestigious business accelerator programs, including Babson’s Summer Venture Program, the Antler Accelerator in Austin, and the SKU Accelerator for emerging consumer packaged goods brands. Recently, they won the grand prize at Babson’s annual BETA Challenge pitch competition.
Despite their growth, PetPax Co. remains a two-person operation dedicated to their motto: “We handle the science, you handle the snuggles.” Their innovative pet wellness products aim to transform the relationship between pets and their parents by removing stress from health management routines, and bringing healthier, easier solutions to modern pet parents who need them most.
For pet parents seeking faster, cleaner solutions to their dogs’ anxiety or dental care needs, PetPax Co.’s SupplaMelts represent a significant advancement in pet wellness technology that prioritizes both effectiveness and ingredient quality.


