Long Lasting Relief
Box of Omni Dog Calming Plug-In with bottles on a purple background
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OMNI dog calming product set with packaging and bottles on a beige background
Dog with text 'Reasons to Get Excited' and icons on a beige background
Two dogs with text about Dog Appeasing Pheromone (DAP) on a purple background
Dog lying on a couch next to an Omni diffuser with smoke effect
Product for calming devices for dogs in various stressful situations with images and text.
Omni dog appeasing pheromone diffuser with features on a beige background
Vet holding a dog with text about a calming pheromone diffuser
Box of Omni Dog Calming Plug-In with bottles on a purple background
Dog with behavioral issues icons and text on a white background
OMNI dog calming product set with packaging and bottles on a beige background
Dog with text 'Reasons to Get Excited' and icons on a beige background
Two dogs with text about Dog Appeasing Pheromone (DAP) on a purple background
Dog lying on a couch next to an Omni diffuser with smoke effect
Product for calming devices for dogs in various stressful situations with images and text.
Omni dog appeasing pheromone diffuser with features on a beige background
Vet holding a dog with text about a calming pheromone diffuser

Dog Calming Diffuser Refills

DESIGNED TO HELP CALM YOUR CANINE IN STRESSFUL SITUATIONS

A smart, soothing solution powered by science and inspired by nature.

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Why subscriptions are best:
  • Stay in stock and keep the calm
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      • Behaviourist Support
      • Long Lasting

      Replacement pheromone refills for the Omni Dog Calming Diffuser.

      Each refill provides up to 30 days of continuous calming coverage, releasing the same clinically studied dog appeasing pheromone that mimics the natural signals from a nursing mother.


      Canine Appeasing Pheromone Complex (2%), Isoparaffinic Hydrocarbon (48ml)

      Each refill vial slots directly into your existing Omni Calming Diffuser plug-in unit. Once inserted and switched on, the diffuser warms the liquid to release a steady, odourless stream of dog appeasing pheromone into the room. No setup, no mess - just replace and go.

      The pheromone is species-specific, meaning it’s detected only by dogs. It’s completely odourless to humans and safe around cats, children, and other household members.

      A single refill lasts approximately 30 days under normal use. Signs it’s time to swap:

      • The liquid level in the vial is at or near empty
      • You’ve noticed your dog’s stress behaviours returning (pacing, whining, restlessness)
      • It’s been 4 weeks since the last change

      For consistent results, we recommend replacing the refill every 30 days without waiting for the vial to fully empty. Pheromone concentration decreases towards the end of the vial’s life, so a fresh refill maintains peak effectiveness.

      Set up a 60-day subscription to receive two refills automatically — enough for two full months of coverage. Subscriptions include:

      • Free UK delivery on every order
      • Skip, pause, or cancel anytime
      • Best value pricing vs one-time purchase
      • Automatic delivery so your dog’s calming routine is never interrupted

      Pheromone diffusers work best with continuous use. Gaps between refills mean your dog loses the consistent calming signal, and stress behaviours may return.

      Founded by a Vet Who Truly Cares

      Dr. Guy Sandelowsky

      "The Omni Dog Calming Diffuser is a gentle, drug-free way to help your dog feel calm at home."

      Designed to Help Calm Your Canine

      Designed to Help Calm Your Canine

      Stress doesn't have to rule your dog’s life. With the right support, you can help them feel calm, confident, and secure in every situation. Give your dog the calm they deserve with Omni’s Dog Calming Diffuser.

      Excessive Barking

      Excessive Barking

      Separation Anxiety

      Separation Anxiety

      Sound Sensitivity

      Sound Sensitivity

      Create a Safe Space

      Create a Safe Space

      Natural Relief

      Natural Relief

      Talk to a Vet

      Is the diffuser right for your dog?

      • Take a FREE 15-minute call with our Behaviourist, Nico.
      • Help find the best solution for your dog's needs.
      • Book a FREE 45-minute consultation for tailored behavioural advice.
      Talk to a Vet

      Frequently Asked Questions

      Curated by Dr. Guy Sandelowsky BVM BVS MRCVS

      Curated by Dr. Guy Sandelowsky BVM BVS MRCVS

      Yes! Our Diffuser uses the Dog Appeasing Pheromone (DAP) which has numerous clinical studies proving it's efficacy. You can view one such study here: https://pmc.ncbi.nlm.nih.gov/articles/PMC2839826/

      No, the pheromone is entirely odourless to humans.

      The diffuser can help your dog feel calm in many stressful situations, including: Separation anxiety or stress being left home alone, Stress when travelling, visiting the vet, or leaving the home, Fear of loud noises, such as thunder or fireworks, Stress caused by changes to their environment

      Your first order will contain the Plug-In device, plus two 30-day refills. Your ongoing orders will include two 30-day refills, delivered every 60 days. It's the simplest way to keep your diffuser topped up. Already purchased the Plug-In? You can also subscribe to just receive the Refill Pack.

      Our diffuser gently released a synthetic version of the Dog Appeasing Pheromone (DAP) - a natural substance produced by nursing mother dogs to reassure their puppies - into the air.This pheromone signals safety and security, helps reduce anxiety-driven behaviours and creates a calm environment. Although odourless to humans, dogs can detect it and respond instinctively.

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      FORMULATED BY EXPERTS

      OUR VETS & SCIENTISTS

      Behind every Omni product is our dedicated team of experienced vets and pet nutritionists. Combining clinical expertise with cutting-edge research, their deep understanding of allergies, age-related sensitivities, and long-term health ensures that Omni offers science-backed solutions you can trust.

      DR GUY SANDELOWSKY
      MVM BVS MRCVS

      Guy is a veterinary surgeon with over a decade of clinical experience and a strong foundation in biomedical science, backed by three years of research expertise. Alongside his medical background, he holds an MBA, equipping him with the commercial and strategic skills to innovate in the pet industry.

      As co-founder of Omni, Guy combines scientific insight with entrepreneurial drive to create allergy-friendly, evidence-based nutrition that supports happy, healthy dogs.

      SOPHIE KAY
      BSc(Hons) BVetMed MRCVS CertAVP

      Sophie is a veterinary surgeon with over 15 years of diverse experience across clinical practice, leadership, and digital innovation. After qualifying in 2009, she worked in mixed and exotic animal practice, volunteered internationally, and held senior roles in both private and charity sectors, including leading a 50-strong hospital team at PDSA. She has a certificate in General Small Animal Practice and completed a veterinary leadership program at Cornell. Alongside her clinical career, she developed a passion for client education and communication, which led her to Omni, where she looks forward to meeting you and your pets.

      DR GRANT HAMPSON
      BVetMed MRCVS ISFM CertAdvFB

      Grant brings over seven years of clinical veterinary experience and five years in the pet industry, combining medical expertise with commercial insight. With a background as a clinical advisor, product developer, and Founder’s Associate, he bridges veterinary science and business innovation.

      Holding the ISFM Advanced Certificate in Feline Behaviour, Grant has a particular focus on nutrition-driven health solutions, helping to shape products and strategies that improve animal wellbeing.

      DR Mike DAVIES
      BVetMed CertVR CertSAO FRCVS

      As one of our advisors, you’ll find Mike, a small animal clinical nutrition specialist, giving us his advice and technical expertise.

      DR HOLLY VAUGHAN
      BVSc MRCVS

      "Holly is an experienced veterinary surgeon with several years in small animal clinical practice. She has developed strong expertise in companion animal medicine and surgery, with a particular focus on providing high-quality, evidence-based care.

      Holly is passionate about supporting pet wellbeing and strengthening the bond between owners and their animals through compassionate, practical veterinary solutions."