Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar

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Make sure your kitty grows up big and strong with the Hartz Powdered Milk Replacer Formula for Kittens. This easy-to-mix powdered formula covers all the bases for kitty’s healthy development, like protein from real milk to support growing muscles, calcium for healthy bone growth, magnesium for heart health, plus taurine, vitamins, antioxidants and omegas. Since it’s made from actual milk and formulated to match mother’s milk, it’s easy to digest even for sensitive tummies. Plus, you can even give it to nursing moms to keep them healthy or to senior cats who could use the nutrition boost.

Key Benefits
  • Precisely formulated to support the healthy growth and development of newborn kittens.
  • With real milk for healthy muscle growth, plus taurine, vitamins, minerals, antioxidants and omegas for overall health.
  • Designed to match mother’s milk so it’s easy to digest and is easy on sensitive kitty tummies.
  • Quick-mix powder blends easily with room temperature water so it’s great for bottle feeding on demand.
  • Can be given to pregnant and nursing moms as well as senior cats or those recovering from illnesses.

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  • Item Number
  • Weight
    1.17 pounds
  • Lifestage
  • Food Form
  • Product Form
Nutritional Info

Animal Fat and Vegetable Fat (preserved with BHA and BHT), Dried Whey Protein Concentrate, Dried Whey, Sodium Caseinate, Dicalcium Phosphate, Lecithin, Calcium Carbonate, Choline Chloride, L-Arginine, Taurine, Mono and Diglycerides of Edible Fats or Oils, Magnesium Oxide, Ferrous Sulfate, Zinc Sulfate, Vitamin E Supplement, Manganese Sulfate, Niacin Supplement, Calcium Sulfate, Copper Sulfate, Vitamin A Acetate, Sodium Silico Aluminate, Sodium Selenite, Ascorbic Acid (Source of Vitamin C), Ethyfenediamine Dihydriodide, Vitamin D3 Supplement, Cobalt Sulfate, Calcium Pantothenate, Thiamine Mononitrate, Riboflavin Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin B12 Supplement, DL-Methionine, L-Lysine Monohydrochloride, Artificial Flavor.

Caloric Content

5000 kcal ME/kg (calculated) Calroies Per Teaspoon 11 kcal ME/tsp of powder

Guaranteed Analysis
Crude Protein30% min
Crude Fat40% min
Crude Fiber0.8% max
Moisture5% max
Ash8% max
Lysine2.8% min
Linoleic Acid4% min
Calcium0.85% min
Calcium12% max
Phosphorus0.85% min
Taurine0.3% min
Feeding Instructions

Age in Weeks 0 - 2 weeks Feeding Frequency Every 2 hours; Age in Weeks 3 - 5 weeks Feeding Frequency Every 3 - 4 hours; Age in Weeks older than 5 weeks Feeding Frequency Decrease amount of formula, Increase feeding of solid food


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: 4.8 of 5 stars 23 Reviews 23 Reviews 4.9 out of 5 Stars

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96% Recommend

96% of reviewersrecommend this product

Rating: 4.8 of 5 stars 4.9 / 5

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23 Reviews

Showing 1-10 of 23 Reviews

  • 5 out of 5 stars

    Refrigerate after opening!!

    By Feralmamatoo on Oct 9, 2021

    I have used this for years and just noticed that the label says "refrigerate after opening." I confirmed with customer service that those instructions mean refrigerate the power after opening. I've never done that, never even thought the powder would need to be refrigerated. It pays to read the label closely and I will do so in the future. My feral kitties love it.

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  • 5 out of 5 stars

    Kittens love

    By Tamm on Oct 11, 2021

    I bought this for a animal shelter in my town that was asking for it they were needing some to help a bunch of kittens they took in and I wanted to help

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  • 4 out of 5 stars

    Not bad for Hartz

    By JenGR on Jul 27, 2021

    I usually dont use or trust Hartz products but I bought this for some stray kittens that I am fostering. They love it and it's affordable. Like any milk powder, its a bit challenging to mix up as I still end up with some lumps but the kitties don't seem to mind!

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  • 5 out of 5 stars

    Best Price & Easy Mixing

    By HumaneShopper on Jun 5, 2021 top1000Contributor

    I am delighted with this kitten milk replacement formula powder. It is less expensive than what I've previously used (ingredients for kitten nutrition are the same) and it dissolves much easier as well. I wish the jug was a little wider to make access to the powder easier, but a long-handle scoop solves this problem. I definitely will reorder.

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  • 5 out of 5 stars

    A good headstart for a great cat

    By firstrate on Jun 6, 2021

    We found a tiny kitten without mom or owner and brought her in. We ordered this formula and kitten food and she now rums the house. this formula stores well. It can be made up in whatever amount your kitten or kittens need at the moment, it mixes well and quickly and gives them all the energy you can handle

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  • 5 out of 5 stars

    donation to humane society

    By Lisa on Jun 30, 2021

    this was a donation sent to my local humane society so i really can't rate the product but i understand the delivery was quick

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  • 5 out of 5 stars

    Kittens loved it!

    By choccat on Jun 14, 2021

    My foster kittens loved this milk. They always want more! They are 8 weeks old now and they still love to drink it as a treat.

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  • 5 out of 5 stars

    my kitten loves this.

    By maru on Aug 20, 2021

    First time buy and my 5weeks kitten really enjoy it

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  • 3 out of 5 stars

    Can’t get product out of container!

    By Barkley on Mar 12, 2021

    No scoop included. Container design is poor with a Very Narrow neck after you take the big lid off. It is so hard to get the product out even with a spoon! The milk replacer smells yummy, like a vanilla milk shake. My cats do like it.

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  • 5 out of 5 stars

    This stuff is the cats meow and whiskers

    By Country on Jan 10, 2021

    I use to buy PetAg KMR- Kitten Milk Replacer, until it got to where you couldn’t find it, when you could find it the price was ridiculously high, Hart’s Powdered Milk Replacer is hands down the best, not only is it cheaper than PetAg also it is more easily soluble than PetAg KMR which would clump you will not have that problem with Hartz Powdered Milk Replacer,

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