Frequently Asked Questions
Ordering
Are purchases one-time only?
Yes. Every product is sold as a one-time purchase. We do not automatically create repeat orders or recurring charges.
Will my card be charged again automatically?
No. Your payment applies only to the order you place. We will not schedule another shipment or charge unless you return and place a new order.
How are multi-pack savings calculated?
The first option is sold at the regular price. The second option saves 10% compared with buying two of the first option, and the third option saves 15% compared with buying three of the first option. The price shown in your cart and at checkout is the price you pay.
How do I reorder refills?
Visit the Dogs or Cats collection whenever you need more refills, choose the quantity you want, and place a new one-time order.
How often should I reorder refills?
Each refill vial lasts about 30 days under normal continuous use. Order again whenever you need more; there is no automatic delivery schedule.
Can I change or cancel a new order?
Email support@TheraPetMD.com as soon as possible with your order number. If fulfillment has not started, our support team will review the available options.
Product & Safety
What exactly is a pheromone?
Pheromones are natural chemical signals that animals produce to communicate — completely odorless to humans. Mother animals release them while nursing to make their newborns feel safe and secure. TheraPet recreates that same calming signal in your home.
Is TheraPet safe for babies and young children in the home?
Yes. TheraPet products emit species-specific pheromones that are only recognized by the intended animal. They have no effect on humans — including babies and young children — so you can use them with complete peace of mind.
Is it safe if I have other pets at home, like birds, rabbits, hamsters, or lizards?
Yes. TheraPet's pheromones are species-specific, meaning they're only detectable by the target species (dog or cat). Other animals in your home — whether that's a parrot, hamster, lizard, or any other pet — won't be affected by the diffuser.
What is the science behind the mammalian appeasing signal?
Research in veterinary behavioral science has established that mammals share a conserved set of calming molecules — fatty acids produced by mother animals during nursing that signal safety to their young. This chemistry is consistent across species and forms the foundation of modern pheromone science. Our formulas are grounded in that established biology.
Do you have separate diffusers for dogs and cats?
Yes. Both our dog and cat diffusers are built on the same mammalian appeasing signal. The two formulas share the same active ingredients, with the ratios calibrated differently for each species.
Does TheraPet contain essential oils?
The diffuser contains no essential oils or added fragrances — only a proprietary blend of species-specific pheromones. The calming spray does include lavender (5%) alongside the pheromone complex.
Will it sedate my pet?
Not at all. TheraPet works naturally through pheromones, not sedatives. Your pet may become calmer and more relaxed, but they won't be drowsy or sedated.
Can I use TheraPet while my pet is recovering from surgery?
Yes, it's safe to use during recovery and can help reduce stress while your pet heals. As always, defer to your veterinarian's guidance if they have given specific instructions.
What's the difference between the diffuser and the spray?
The diffuser plugs into a wall outlet and provides continuous, whole-room coverage. The spray is designed for targeted use on specific spots like furniture, bedding, crates, or in the car before a trip.
Setup & Usage
Where should I plug in the diffuser?
Place it in the room where your pet spends the most time. Avoid outlets near windows, air vents, or doors, as drafts can interfere with proper diffusion. Do not plug it into a power strip or surge protector. The vial should always hang directly below the plug-in unit.
Should I unplug the diffuser at night?
No — for best results, keep the diffuser plugged in at all times. Continuous use allows the pheromones to build a consistently calm environment for your pet.
How many diffusers do I need?
Each diffuser covers approximately 700 sq ft. If your pet moves between multiple rooms or you have a larger home, using one diffuser per key room will give you the best results.
Can I use the diffuser alongside supplements or medication?
You can use TheraPet alongside veterinarian-approved calming supplements. If your pet is on medication, we recommend checking with your veterinarian first.
Does it have a noticeable smell?
You may notice a faint scent from the diffusion process and the heating of the unit — this is normal. The pheromones themselves are undetectable to humans and other animals, so it won't bother anyone in your home.
What to Expect
How quickly will I see results?
Many pets begin showing signs of calm within the first 2 weeks. Pheromones work best with consistency. While 30 days is a good starting point, we recommend continuous use for 6 months for the most meaningful, long-term results.
What behaviors can TheraPet help with?
TheraPet is designed to help with anxiety, general stress, house-soiling or litter box avoidance, destructive behavior, fear of loud noises, travel-related stress, and socialization challenges. Every pet is different, but many families notice a calmer environment with consistent use.
Does it actually work?
Pheromones address stress-related behavior. If stress is driving your pet's issues, many owners see a noticeable difference within 30 days of consistent use. If there is no improvement after 30 days, a veterinary visit can help rule out an underlying medical cause.
What if it doesn't work for my pet?
We want you and your pet to be happy. If TheraPet isn't the right fit, please reach out to our support team to learn about our return and exchange options.
Orders & Shipping
How do I update my shipping address?
Email support@TheraPetMD.com as soon as possible with your order number and the correct address. If fulfillment has not started, our support team will review the available options.
How do I update my payment method?
Payment details for a completed order cannot be changed. Use your preferred payment method when placing your next one-time order.
Do you offer international plug compatibility for the diffuser?
Yes. You'll receive a plug compatible with your country, so no adapter is needed.
Refills & Product Care
How often do I need to replace the refill vial?
Replace the refill vial every 30 days, or when the liquid runs out — whichever comes first.
When should I replace the plug-in unit itself?
Replace the plug-in unit after 6 months of continuous use or after using three refill vials, whichever comes first.
How do I clean the diffuser?
If dust builds up on the unit, unplug it before cleaning. Refer to the user manual included in your box for full cleaning instructions.
Still have questions? We’re Here to Help
Chat with us or email support@TheraPetMD.com. Our pet care experts are ready to help you find the right solution for your furry friend.