Plentum Advanced K9 Microbiome Care box of 30 sachets, three-quarter view showing the front and the three-step directions panel
Plentum Advanced K9 Microbiome Care sachet with a pile of the daily dog supplement powder
What Microbiome Care supports: oral health and fresher breath, gut health, and skin and coat
Microbiome Care sachets a day by weight: 1 up to 20 lb, 2 at 21 to 50 lb, and 3 over 50 lb
Advanced K9 Microbiome Care supplement facts label
Ingredient photos of the actives in Microbiome Care
Plentum Advanced K9 Microbiome Care non-live postbiotic and prebiotic dog supplement for dogs under 20lbs
Plentum Advanced K9 Microbiome Care non-live postbiotic and prebiotic dog supplement for dogs under 20lbs
Text version of these images

What Microbiome Care supports

  • Its oral health postbiotic is selected to support oral hygiene when used consistently with regular dental care.
  • Inulin helps feed beneficial gut bacteria, and colostrum is included to support immune and gut-lining health.
  • Omega-3 fish oil, zinc, and vitamin E are included to support healthy skin and coat.

What's in each sachet

Microbiome Care has nine actives: fish oil (omega-3), a canine oral health postbiotic, colostrum powder, inulin, L-glutamine, licorice root powder, zinc methionine, selenomethionine, and vitamin E. See the amounts in the supplement facts.

Sachets a day by weight

Your dog's weight and sachets a day
  • Up to 20 lb 1 sachet
  • 21–50 lb 2 sachets
  • Over 50 lb 3 sachets

Supplement facts label

The label's facts are on this page as a text table. Read the supplement facts.

Advanced K9 Microbiome Care: Daily gut, oral, and skin support for dogs

  • With regular brushing, a canine oral health postbiotic supports fresher breath.
  • With daily meals, inulin and colostrum help maintain a balanced gut microbiome.
  • In shedding season, omega-3s, zinc, and vitamin E support healthy skin and coat.
$34.99 $1.17/day

1 box · 30 sachets · 30-day supply

Your dog's weight · sachets per day
Dog's size
Purchase option

Every order has a 30-day guarantee: if it isn't right for your dog, contact us for a refund. Return policy

Subscriptions ship free. Any order that includes a pre-order ships together by Mon Oct 26.

Subscription details

Subscriptions renew every month until you cancel. You can skip, pause, or cancel anytime in your account.

What's inside
In one sachet
  • Oral postbiotic
  • Omega-3
  • Colostrum
  • Prebiotic fiber
  • Zinc & selenium
  • Oral health postbiotic 125 mg
  • Omega-3 fish oil 150 mg
  • Colostrum 100 mg
Not sure which one? Take the 60-second quiz

Deliver to 07008

Top questions

See all questions

Talk through your dog's routine with our team

Tell us about your dog's age, weight, and food, or email the lot number from your box for its Certificate of Analysis, and a person on our team will help you out.

Email hello@plentum.com and we'll reply within 1 business day.

What Microbiome Care supports

It's a daily sachet, sized by weight, for your dog's mouth, gut, and skin, from 12 weeks old to the gray-muzzle years.

  • Oral health and fresher breath

    The oral health postbiotic supports oral hygiene when you use it daily alongside brushing and dental care.

  • Gut health

    Inulin helps feed the good bacteria in your dog's gut, and colostrum supports immune and gut-lining health.

  • Skin and coat

    Omega-3 fish oil, zinc, and vitamin E support healthy skin and coat.

Is it right for your dog?

  • Fresher breath
  • Daily gut support
  • Skin and coat
  • Everyday immune support
  • Puppies (12 weeks and up) to seniors
  • Daily, sized by weight

Keep brushing those teeth, and pair the daily sachet with regular dental care.

Microbiome Care ingredients: a postbiotic and prebiotic foundation

This supplement has nine ingredients. Tap one to see what it's there for.

  • Golden omega-3 fish oil capsule with a falling oil drop beside fresh salmon and sardines on violet
    Omega-3

    Fish oil

    150 mg per sachet

    Fish oil supplies omega-3 fatty acids that support skin and coat health.

  • Cultured postbiotic in a glass flask
    Oral support

    Canine oral health postbiotic

    125 mg per sachet

    This postbiotic is made by fermentation (Pediococcus pentosaceus and Bacillus subtilis). It supports oral hygiene as part of your dental-care routine.

  • Creamy bovine colostrum powder spilling from a glass jar beside a glass of milk
    Immune support

    Colostrum powder

    100 mg per sachet

    Colostrum is a cow's first milk. It supports immune and gut-lining health.

  • Fresh chicory roots with blue flowers and a scoop of inulin powder on lavender
    Prebiotic

    Inulin

    100 mg per sachet

    Inulin is a prebiotic fiber that helps feed the gut's good bacteria.

  • A scoop of L-glutamine powder beside a fresh halved cabbage and spinach leaves
    Amino acid

    L-glutamine

    100 mg per sachet

    L-glutamine is an amino acid, included for the supplement's gut focus.

  • Dried licorice root sticks and slices with a scoop of licorice root powder and green leaves
    Botanical

    Licorice root powder

    50 mg per sachet

    Licorice root powder is part of the everyday blend.

  • A mound of fine mineral powder in a wooden scoop with smooth mineral stones and lentil sprouts
    Mineral

    Zinc (zinc methionine)

    5 mg per sachet

    Zinc is an essential trace mineral that supports normal skin, coat, and immune function.

  • Fresh cremini mushrooms and a scoop of fine selenium powder on cream
    Mineral

    Selenium (selenomethionine)

    20 mcg per sachet

    Selenium is an essential trace mineral that supports healthy antioxidant activity.

  • Yellow sunflower and a golden vitamin E oil drop on a cream and lavender backdrop
    Antioxidant

    Vitamin E (dl-alpha-tocopheryl acetate)

    25 IU per sachet

    Vitamin E is an antioxidant vitamin that supports healthy antioxidant activity in cells.

Supplement factsPer sachet

Supplement facts

Serving size: 1 sachet (2 g) · Servings per container: 30

Active ingredients per sachet (2 g)Amount
Fish Oil150 mg
Canine Oral Health PostbioticMaltodextrin, dried Pediococcus pentosaceus and Bacillus subtilis fermentation products125 mg
Colostrum Powder100 mg
Inulin100 mg
L-Glutamine100 mg
Licorice Root Powder50 mg
ZincAs zinc methionine5 mg
SeleniumAs selenomethionine20 mcg
Vitamin EAs dl‑alpha‑tocopheryl acetate25 IU

Other ingredients: Maltodextrin (carrier in the oral health postbiotic).

Directions for use

Administer the required amount once per day. Stir into your dog's regular food.

Weight of dogDaily amount
Up to 20 lbs1 sachet (2 g)
21–50 lbs2 sachets (4 g)
Over 50 lbs3 sachets (6 g)

Contains

Contains fish (fish oil) and bovine colostrum (milk-derived). Ask your vet if your dog has a known food or plant sensitivity.

Caution

  • A veterinary examination is recommended before using this product.
  • If your dog's condition worsens or does not improve, stop use and consult your veterinarian.

Warnings

  • For animal use only.
  • Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately.

Storage & handling

Keep in a cool dry place.

Advanced K9 Microbiome Care supplement facts label
Open the label image full size

Amounts are per sachet, as listed on the label. Every lot is lab-tested. Microbiome Care is a postbiotic and prebiotic powder, not a probiotic.

See the research

Every lot is lab-tested

  • A Certificate of Analysis for every lot
  • Each lot is checked against its batch record
  • Made in the USA
See the test results

Your first 12 weeks with Microbiome Care

  1. Weeks 1–2

    Start the habit

    Stir the dose for your dog's weight into a meal every day.

  2. Weeks 3–4

    Build the routine

    Give the same dose with the same meal every day.

  3. Weeks 5–8

    Stay consistent

    Keep the timing steady.

  4. Weeks 9–12

    Check in

    Look back at your notes.

Individual results vary.

The research behind every ingredient

Microbiome Care contains COHP, an oral health postbiotic studied in dogs in published randomized, double-blind, placebo-controlled trials. For each ingredient, we show what the studies found and where the evidence falls short, next to each dose.

See the research

Studies of this postbiotic ingredient in dogs, run by the ingredient supplier: Animals 2025 (halitosis) · J Vet Dent 2026 (halitosis, validation) · J Vet Dent 2026 (oral microbiome)

Start with the foundation, add a focus

Plentum Advanced K9 Itch & Immune Care dog supplement box, 30 sachets, with the golden retriever illustration

Itch & Immune Care

Itch & Immune Care adds a canine postbiotic and DHA from microalgae for skin and coat support, on top of the daily foundation.

Plentum Advanced K9 Calming Care dog supplement box, 30 sachets, with the lavender bean bag dog illustration

Calming Care

Calming Care is melatonin-free and supports calm during occasional stress, like storms, road trips, or vet visits.

Each supplement is its own sachet. On two supplements, your dog gets both sachets every day.

Customers praised this microbiome supplement for improving digestion, reducing allergies, freshening breath, and boosting energy. Many noted shinier coats and firmer stools. The convenient pre-measured sachets are easy to use and most dogs enjoy the taste. Some found results take weeks to appear, and one dog refused it. Price concerns for larger dogs.

  • 5 stars: 80 (76%)
  • 4 stars: 21 (20%)
  • 3 stars: 2 (2%)
  • 2 stars: 1 (1%)
  • 1 star: 1 (1%)
M
Michael Marcum
Dog Age: 0-3
Dog Weight (lbs): 20-50 lbs
Frenchie doesn't need allergy meds!!!!

I have to admit I was skeptical but I thank whoever you believe in that I found this product. Everyone is happy. The breeds in this sample are 3 pugs and a French bulldog. I used to have to give him a cydapoint injection (allergy meds) for about $100 a pop ever 5 or 6 weeks, especially in the spring/summer. He has not needed it at all with plentum I have learned.Plentum K9 Microbiome care. The coat, breath, and mood are also as promised as we move into the 8th week. I could not be happier. Warning : Loose stool in the beginning. Deal with it and push through. You will be happy with the results. I got two breeds that are so prone to allergies and there isn't an ear scratch in the bunch at almost two months. Also, my Frenchie quit eating grass and plants. I will always get this for my dog. Dogs need pre and probiotics too. Maybe even more so. Worth it. Frenchie owners listen to me please. Healthier and not some pharmaceutical Any short hair breed that is prone to allergies aka every dog. Plentum is the truth.

B
Bob
Dog Age: 4-8
Dog Weight (lbs): 1-20 lbs
Taste

Our doggos have been loving the taste of Plentum.

J
John Barr
Dog Age: 0-3
Dog Weight (lbs): 50+ Lbs
Shiny coat

Have had my mini Bernedoodle on this the past 4 months. Shiny coat, no bad breath, and poops are also improving!

B
Bob
Dog Age: 4-8
Dog Weight (lbs): 20-50 lbs
Dogs love taste

My dogs love the taste, and the measured packets are easy to use.

R
Ronald T. Villanueva
Dog Age: 0-3
Dog Weight (lbs): 20-50 lbs
All-in-one

I like the fact that I can use one product to eliminate the two other supplements that I purchase for my babies on a monthly basis.

N
Nikki Fuller
Dog Age: 4-8
Dog Weight (lbs): 1-20 lbs
Think it’s helping?!

We have a Shih Tzu whom I cook for as she has a terrible yeast issue we’ve thrown thousands of dollars at and nothing has helped. I’m trying to add in vitamins and probiotics so I tried this a month and just reordered. Hoping it’s a good long term solution as we’ve noticed she’s not AS itchy or smelly when she’s on it. We had to baby step with it a bit as it initially caused some bowel issues but she’s fine now. Will keep updating. Wish they made a probiotic solely for dogs with yeast issues.

A
Amanda
Awesome dog probiotic!

My dog has really been enjoying this probiotic. To ease her into it. I split one packet between her breakfast and dinner meals. I have noticed that her stool seems to be consistent and healthier than before. I've also noticed that her breath has not been stinky. This is a great product and I definitely recommend it. I like that it comes in individual packets which makes it super easy to pack for traveling with your dog.

A
Alex
Dog Age: 4-8
Dog Weight (lbs): 20-50 lbs
Good Stuff!

It took a few weeks, but this has really helped my dog. I have a 5 year old poodle. He is eating better now, and most importantly, he is not scratching like crazy all the time! Highly recommended!

R
Ronnie

My pet loves it

A
Artist
Easy to give, TBA on effects, expiration date though?

Although it kind of smells, and I find her snout gets stinkier faster because it always gets a little messy while eating since she's a fluffy doodle I'm at least glad that she eats this without hesitation. Luckily, we only need one packet a day for her size as it is already quite steep value for money wise here in my opinion. I find it a bit odd that there's not an expiration date only a manufacture date. No clear positive or negative health effects noticed yet, but will update, if we observe anything either way

K
Karen
Dog Age: 4-8
Dog Weight (lbs): 1-20 lbs
Good option instead of multiple supplements

I’ve tried so many products for my buddy, with mixed results. Plentum is the first one that seems to work for now. It's been 1 month we are using this suppleemnt. Within a month, I saw a few changes in him, he is more cheerfull, has fresh breath, and his poops are more consistent. For about a dollar a day, it’s worth every penny compared to buying multiple supplements.

J
Josh Karp
Quality that noticeable works

I was hesitant with all the claims of this especially helping with bad breath but wow so much to say I’ll start by saying with all the beneficial ingredients it was reassuring it comes it a well packaged box with individual dosage packets making this quick and easy to give no guessing or scooping involved the amount is around table spoon my fur baby is more on the picky side her diet is more of a wet food diet so adding this was not a issue for me when giving her dinner there has been zero issues so I assume there is no smell or taste or she may enjoy the flavor surprisingly after the second third packet her breath was noticeably better even more surprisingly her bowel movements are night and day not runny and not to firm a perfect consistency I’ve noticed all great benefits add this and it works what I didn’t like is when you read the packet it states that use caution when giving to a animal with known cardiac or kidney issues and to consult with a veterinarian before giving which makes it confusing considering the good ingredients I think it would be more helpful if they can add a better or more detailed explanation as to why for all the great benefits I have witnessed the price is fair and worth it I think if they either added scientific lab testing or third party testing certification it would make this a hands down full five star product worth every penny that being said I very happy and this supplement noticeably works

K
KeithMnemonic
Healthy Product that Picky Dog Is Eating!

Excellent product! The pre-measured packets make this product very easy to use. I simply sprinkle it onto my dogs dry food and stir it around with a tiny bit of water. My very picky pup hasn't even noticed that she is eating something new and extremely healthy. I appreciate the extremely clean ingredients. The vet recently recommended fish oil. This well-balanced powder has that and so much more.

E
Emma Langford
A Clean Supplement!

I am very fussy about what I give my dogs and I am always searching ingredients to make sure they are natural and clean. I have 2 very young Labradors (one is 3 years old and 71lbs and one is 15 months and 75lbs) and their health inside and out is the upmost importance. I really like this supplement and have been using it awhile now and can already see the benefits. The powder is tasteless and flavorless so this is great if you have a picky eater. This supplement is clean with no fillers and high quality ingredients. It targets all the important areas of my dogs, their joints, bones, teeth, heart immunity, digestion. Instead of having to use lots of different supplements to make sure they are getting what they need, this covers it all. My Labs are out 6 days a week and in water all the time and I had noticed their stools were runny but they always pick up something in the lakes, pool, fields or woods. But since using this supplement I have noticed that their stools are much firmer. I like the individual packets as it helps keep the supplement fresh and it is already pre-weighed out. I will absolutely continue to use this supplement and I trust this brand is giving my dogs exactly what they need for a healthy life. Great value for money. Highly recommend.

G
Geneva Banks
Clean ingredients, real results.

I’m really impressed with this all-in-one dog supplement. I love that it comes in convenient single-serve sachets, makes it easy to mix into food with no mess or guessing. My dog had no problem with the taste and eats it right up with her meals.

What really sold me is the clean, human-grade ingredient list; no fillers, just simple, effective nutrition. Since starting it, I’ve noticed improvements across the board: better digestion, more consistent stools, less scratching from allergies, and even better breath. The joint support is a nice bonus, especially for aging dogs.

This supplement covers everything from gut health to immunity and oral care, which saves me from buying multiple products. Definitely a smart addition to our daily routine. Highly recommend for anyone wanting a high-quality, all-in-one health boost for their pup!

A
Aimee C. Lane
My picky dog likes the taste

I ordered this because my dog who has a sensitive tummy just got spayed and I wanted to give her something to help her not have issues with her prescriptions while in recovery. My dog is a very picky eater and I was pleasantly surprised that not only did she not mind the taste but she actually seems to like it. She hasn't been taking them long, but since starting these supplements she's not had any tummy issues.

F
Fred
Firmer stools and dogs don't seem to mind the taste

While it is too early to tell all the potential benefits of this all-in-one dog supplement, I can confirm that it has helped with my dog's stools. He tends to be a runny sort of guy and I have been using this now for about a week and noticed more of a firmness to his stools, which I'm pleased with. Aside from that, there's been a bit more energy as well, which may be due to these supplements. I appreciate the human grade ingredients and the fact that there's not weird stuff in these packs. I also like the fact that they are individually packaged doses, making it very easy to add them to food without having to measure or weigh anything out. It remains to be seen what the longer-term impact of these supplements will be but it does seem that, for the most part, they are working as intended.

J
J.G.
Dog Loves the Taste

My dog is 16 years old and I’m worried about the strength of her teeth, since she just lost a front tooth.

She loves the taste of these packets and I’m hoping it will help her teeth get stronger. I have not noticed her breath smelling any better though.

B
Benjamin
Dog Age: 4-8
Dog Weight (lbs): 1-20 lbs
Like the packaging

I love the convenience of having everything my dog needs in one packet, no more measuring. Other supplements we tried caused diarrhea. With Plentum, my pups' digestion is much better, and he gets excited for meals.

I
Indy Santos
Dog Age: 0-3
Dog Weight (lbs): 1-20 lbs
We just loved the product

I was so happy with this purchase! My dog loves it and she feels way more healthy!!! Thank you so much

Questions owners ask

Giving it

  • For Plentum Microbiome Care, dogs up to 20 lb get 1 sachet a day, dogs from 21 to 50 lb get 2, and dogs over 50 lb get 3. Start with half your dog's daily dose for 3 days, then the full dose for their weight.

  • It's unflavored, so most dogs take it straight over food. For a picky dog, a splash of warm water makes a light gravy.

  • Give it with whichever meal suits your routine. Using the same meal each day makes it easy to remember.

  • Plentum Microbiome Care is made for puppies from 12 weeks of age, with the dose set by their weight.

With other supplements and medicine

  • Yes. Microbiome Care is the daily foundation, and any of the four targeted supplements, including Gut Restore, can be added to it. Add one at a time, and add the second after a week on the full dose of the first.

  • Supplement facts on this page covers medicines and health conditions, so read its Caution before you start.

What to expect

  • Plentum Microbiome Care is a postbiotic and prebiotic foundation. Gut Restore is the one that adds live probiotic strains.

  • No. Its oral health postbiotic supports fresher breath alongside daily brushing and dental care.

  • Give it every day and keep a short weekly note on breath, stools, coat, and energy. The Vitality Roadmap shows what to track over the first 12 weeks.

  • Every order has a 30-day guarantee. If it isn't right for your dog, contact us and we'll refund you.

    This page's 12-week timeline shows what to track and when to check in.

    Read the return policy

Testing

  • Yes, every lot has one. Ask through our contact page, and we'll send you the full Certificate of Analysis.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

1 to 3 sachets a day, by your dog's weight

Each box holds 30 sachets. Stir the dose into any meal.

Choose my size