10 Best Kitten Milk Replacers & Formulas 2026: According to Reviews | Chewy

The 10 Best Kitten Milk Replacers & Formulas

Very young kittens have specific nutritional needs, especially if they can't nurse from their mother. Milk replacers are formulated to closely match feline milk composition and support early development. When choosing kitten milk replacers and formula, ease of preparation and how well kittens tolerate them often matter most. When caring for newborn kittens, it's important to work closely with a veterinarian. Below, you'll find today's best-selling and top-rated kitten milk replacers & formulas that Chewy pet parents, like you, love. We update this list every week, so you can be sure you're getting the timeliest product recommendations available.

Our Top Picks

How we created this kitten milk replacers & list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best kitten milk replacers & formula.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best kitten milk replacers & formulas.

Key kitten milk replacers & considerations

Digestibility

Ease of Preparation

Nutritional Content

Palatability

1
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can

PetAg KMR Kitten Milk Replacer Powder for Kittens, 12-oz can

Rated 4.7 out of 5 stars
1,036
$31.78 Chewy Price
($2.65/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.4/5
Great

Ease of Preparation

4.6/5
Excellent

Nutritional Content

4.6/5
Excellent

Palatability

4.5/5
Great

Is this kitten milk replacers & right for my pet?

Lifestage

Kitten

Top Ingredients

Casein, Vegetable Oil (With Tocopherols And Ascorbyl Palmitate (Preservatives), Rosemary Extract), Dried Skimmed Milk, Dried Whey Protein Concentrate

Food Flavor

Unflavored

Packaging Type

Can
2
Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar
Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar
Hartz Powdered Milk Replacer Formula for Kittens, 11-oz jar

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

Rated 4.7 out of 5 stars
254
$12.69 Chewy Price
($1.16/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.7/5
Excellent

Ease of Preparation

4.6/5
Excellent

Nutritional Content

4.8/5
Excellent

Palatability

4.6/5
Excellent

Is this kitten milk replacers & right for my pet?

Lifestage

Kitten

Top Ingredients

Animal Fat and Vegetable Fat (preserved with BHA and BHT), Dried Whey Protein Concentrate, Dried Whey, Sodium Caseinate, Dicalcium Phosphate

Food Flavor

Unflavored

Packaging Type

Tub
3
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack
Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack

Whiskas Cat Milk Liquid Milk Supplement for Cats, 6.75-fl oz carton, 3-pack

Rated 4.4 out of 5 stars
908
$6.29 Chewy Price
($0.32/fl oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.2/5
Great

Ease of Preparation

4.2/5
Great

Nutritional Content

4.3/5
Great

Palatability

4.2/5
Great

Is this kitten milk replacers & right for my pet?

Lifestage

Kitten

Top Ingredients

Milk, Water, Nonfat Milk, Malt Extract, Trisodium Phosphate

Special Diet

High Calcium

Health Feature

Sensitive Digestion, Milk Replacer
4
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count
Four Paws Pet Nurser Bottles, 2-oz, 2 count

Four Paws Pet Nurser Bottles, 2-oz, 2 count

Rated 4.3 out of 5 stars
271
$6.49 Chewy Price
($1.63/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

3.8/5
Good

Ease of Preparation

4.2/5
Great

Nutritional Content

4.4/5
Great

Palatability

4.2/5
Great

Is this kitten milk replacers & right for my pet?

Breed Size

Extra Small Breeds, Small Breeds

Lifestage

Nursing

Health Feature

First Aid
5
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz
Nutri-Vet Powder Milk Supplement for Cats, 12-oz

Nutri-Vet Powder Milk Supplement for Cats, 12-oz

Rated 4.6 out of 5 stars
97
$24.87 Chewy Price
($2.08/oz)
Promo, Save 15% with code PETSDAY15

Our ratings

Digestibility

4.7/5
Excellent

Ease of Preparation

4.6/5
Excellent

Nutritional Content

4.6/5
Excellent

Palatability

4.7/5
Excellent

Is this kitten milk replacers & right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Animal & Vegetable Fat (Preserved With Bha And Bht), Dried Whey Protein Concentrate, Dried Whey, Dicalcium Phosphate, L-Arginine

Packaging Type

Tub

Health Feature

Milk Replacer
6
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can
PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can

PetAg KMR 2nd Step Kitten Weaning Food, 14-oz can

Rated 4.7 out of 5 stars
291
$19.41 Chewy Price
($1.39/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.4/5
Great

Ease of Preparation

4.4/5
Great

Nutritional Content

4.4/5
Great

Palatability

4.4/5
Great

Is this kitten milk replacers & right for my pet?

Lifestage

Kitten

Top Ingredients

Dried Meat Solubles, Rice Flour, Dried Skimmed Milk, Dried Whole Milk, Maltodextrins

Food Flavor

Unflavored

Packaging Type

Can
7
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can
PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can

PetAg PetLac Kitten Milk Replacement Powder for Kittens, 10.5-oz can

Rated 4.6 out of 5 stars
250
$9.19 Chewy Price
($0.88/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.3/5
Great

Ease of Preparation

4.4/5
Great

Nutritional Content

4.3/5
Great

Palatability

4.5/5
Great

Is this kitten milk replacers & right for my pet?

Lifestage

Kitten

Top Ingredients

Dried Skimmed Milk, Soy Protein Isolate, Vegetable Oil (Preserved With Tocopherols), Casein, Animal Fat (Preserved With Bha And Bht)

Food Flavor

Unflavored

Packaging Type

Can
8
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can
PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can

PetAg Goat's Milk KMR Kitten Milk Replacer Powder for Kittens, 12-oz can

Rated 4.8 out of 5 stars
68
$25.73 Chewy Price
($2.15/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.6/5
Excellent

Ease of Preparation

4.6/5
Excellent

Nutritional Content

4.6/5
Excellent

Palatability

4.7/5
Excellent

Is this kitten milk replacers & right for my pet?

Lifestage

Kitten

Top Ingredients

Dried whole goat milk powder, casein, vegetable oil (tocopherols and ascorbyl palmitate (preservatives), rosemary extract), dried whey protein concentrate

Special Diet

High-Protein

Packaging Type

Can
9
PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz
PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz
PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz
PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz
PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz
PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz
PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz

PetAg KMR Healthy Aging Milk Powder Supplement for Cats, 14-oz

Rated 4 out of 5 stars
28
$12.50 Chewy Price
($0.90/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.4/5
Great

Ease of Preparation

4.5/5
Great

Nutritional Content

4.5/5
Great

Palatability

4.0/5
Great

Is this kitten milk replacers & right for my pet?

Lifestage

Senior

Top Ingredients

Beef Broth, Rice Flour, Dried Skimmed Milk, Dried Whole Milk, Maltodextrin

Special Diet

High-Protein
10
Wysong Mother's Milk Supplement, 16-oz canister

Wysong Mother's Milk Supplement, 16-oz canister

Rated 4.2 out of 5 stars
25
$33.49 Chewy Price
($2.10/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestibility

4.6/5
Excellent

Ease of Preparation

4.6/5
Excellent

Nutritional Content

4.6/5
Excellent

Palatability

4.6/5
Excellent

Is this kitten milk replacers & right for my pet?

Breed Size

All Breeds

Lifestage

All Lifestages, Adult

Top Ingredients

Milk Protein (Whey and Casein), Medium Chain Triglycerides, Colostrum, Fish Oil, Lecithin

Special Diet

Gluten Free, No Corn No Wheat No Soy, Starch Free, Natural...