Thomas Labs Breed Heat Dog & Cat Powder, 16-oz jar

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Thomas Labs Breed Heat Dog & Cat Powder is a supplement that’s designed to help regulate your female pet’s hormones, bringing her into normal heat cycles. The combination of herbal ingredients helps support her reproductive health as she prepares for breeding and since the powder has a yummy liver flavor, she won’t mind taking it! This supplement is suitable for both female dogs and cats alike.

Key Benefits
  • Helps support the reproduction process in canine companions and feline friends.
  • Helps to balance your furry friend’s hormones.
  • Promotes regular heat cycles.
  • Formulated with time-tested herbal ingredients.
  • Has a yummy liver flavor that pets love.

See all items by Thomas Labs

  • Item Number
  • Weight
    1.0 pounds
  • Lifestage
  • Breed Size
    Small Breeds, Medium Breeds, Large Breeds, All Breeds
  • Food Form
  • Product Form
Nutritional Info

New: Active Ingredients per scoop (2.5 g): Proprietary Blend of [Maca Root, Angelica Sinensis (Dong Quai) Root, Wild Yam Root, Chaste Tree] 700 mg.

New: Inactive Ingredients: Brewers Dried Yeast, Dried Kelp (Laminaria digitata), and Liver Flavor.

Original: Active Ingredients: Zinc 191 mg, Vitamin A 468 IU, Proprietary Blend of (Seaweed Species Ascophyllum Nodosum) 4171 mg.

Original: Inactive Ingredients: Diatomaceous Earth, Flavorings – Vanilla, Maple, Anise.

Feeding Instructions

Begin 30 to 60 days prior to breeding. Can be given during or after mealtime.

Pet TypePet WeightDaily Feeding (scoops)
DogUp to 20 lbs1
Dog20 - 40 lbs2
DogOver 40 lbs3

Why should I include vitamins & supplements in my pet’s diet?

Most commercial pet foods include baseline vitamins and nutrients, but some may not have the adequate amount to suit your pet’s exact health needs. Like in humans, vitamins and supplements can help support your pet’s long-term health, regulating everything from digestion to muscle growth. Consult your veterinarian to determine the best vitamins and supplements for your furry friend.

How often should I give this supplement to my pet?

It is recommended to give the suggested dosage based off your pet’s weight. Please refer to the Feeding Instructions tab and consult with your veterinarian for more information.

Is this supplement safe to use with the medication my pet is currently taking?

If your pet has a medical condition and is taking other medication, we recommend consulting with your veterinarian to ensure that this supplement is safe to use.

My pet is allergic to certain ingredients, will this product be safe to use?

For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos. If you are unsure about the safety of this product for your pet, we recommend consulting with your veterinarian.

Does this product come in other product forms?

For a complete assortment of products by the manufacturer of this supplement, click on the link next to the item name at the top of the page. You can also find an assortment of supplements across all product forms on our page.

Rating: 3.5 of 5 stars 8 Reviews 8 Reviews 3.5 out of 5 Stars

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75% Recommend

75% of reviewersrecommend this product

Rating: 3.5 of 5 stars 3.5 / 5

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8 Reviews

Showing 8 Reviews

  • 5 out of 5 stars

    Worked like a charm!

    By Bostonterrierbreeder on Jan 2, 2021

    My girls were a little late coming into their cycle recently and I had heard about this supplement in a forum and decided to try it. Worked perfect! Within 2 days of taking this, BOTH my girls were in heat. Mated successfully and we are now happily awaiting puppies. FB: @GreenAcreBostonTerriers

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  • 5 out of 5 stars

    Definitely worked!

    By Novagirl on Feb 17, 2021

    My girl was a bit late starting her heat, within 2 weeks of starting the supplement she was on. She loved the taste, I have no complaints. Works as advertised.

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  • 4 out of 5 stars

    Smells bad but effective!

    By Dogmom365 on Aug 17, 2020

    It was very effective in regulating my dogs heat cycle. My dog had no issues eating it, and actually seemed to enjoy the taste. The only reason I gave 4 stars was because it smells really bad. It stinks up the whole room that it is in.

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  • 5 out of 5 stars

    Awesome Product

    By LWayBulls on Jun 24, 2020

    This product has worked for us wonderfully. We have used it on several occasions. Although it is strong in smell and our females wouldn’t eat it I found a way for them to find it more appetizing. We feed pro plan 30/20 chicken flavor so when I’m season and using the breed heat product we mix it with the soft/canned food PUPPY version of that same food and they love it. I hope it works for you. For updates on females and breedings follow our Instagram: @LWayBulls & Facebook Page: L Way Bulls

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  • 1 out of 5 stars

    Get the pill form!

    By FurryFamilyMom on Feb 24, 2020

    I am sorry to say that I made the wrong decision when I purchased this product in its powder form. My gal only eats kibble and peanut butter treats, however nothing soft or juicy that I could sprinkle this product on. My thought was to combine it with peanut butter, however that failed miserably and it was/is difficult to blend.

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  • 4 out of 5 stars

    Worked for me so far

    By Dominique on Jan 4, 2020

    Has worked well for me and my two females on their second litters. Larger healthy litters and pups.

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  • 1 out of 5 stars

    Don't waste your money

    By BoggyCreekBullmastiffs on Jun 15, 2019

    This overly expensive powder not worth your money. It doesn't matter what's in it if it smells AWFUL...and it stinks. It's smell overpowers anything you try to hide it in...gravy...canned can make this appetizing for you girl. Your girl won't eat it and if they won't eat it, you are just throwing away your money !

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  • 3 out of 5 stars

    Dogs wont eat it

    By Dena on Aug 21, 2019

    I'm having a hard time getting my girls to eat this product.

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