Four Leaf Rover Colostrum Dosage: How to Give It

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Give Four Leaf Rover Bovine Colostrum once a day at the amount on your jar's weight chart. The current label says 1/8 teaspoon for dogs up to 30 lb, 1/4 for 31 to 60 lb, 1/2 for 61 to 90 lb and 3/4 for dogs over 90 lb. Start at about half for the first week, then review after 6 to 8 weeks of daily use.

This page covers the practical side: amounts, frequency, and the routine. Whether the product is worth buying is in our review, and what colostrum can and cannot do for dogs in general is in the colostrum for dogs guide.

Four Leaf Rover colostrum dosage by weight

These are the current label directions, from the "Directions for use" panel. The label gives one daily dose per weight band.

Check the chart on your own jar before you start. Charts have changed between label versions, and the brand's website shows a different chart again. The jar in your hand is the one to follow, and a vet's advice overrides all of them.

The jar-life column is our estimate. The label states 1.97 g per teaspoon and the jar holds 29.5 g (1.04 oz), so a jar is roughly 15 level teaspoons. That also explains the jar's "60 Day Supply Large Dog" panel: it matches the 1/4 teaspoon dose for dogs up to 60 lb. A 75 lb dog finishes a jar in about a month.

Enter your dog's weight below to get the label amount in teaspoons and grams, how many days one jar lasts, and how many jars an 8-week trial takes. It uses the same current chart and jar size as the table, so if your jar prints a different chart, trust the jar.

Measure with a spoon set that includes 1/8 teaspoon (and 1/16 if you plan a half-dose start for a small dog), and level each spoon with a flat edge. A heaped kitchen spoon can be several times the label amount for a small dog. Scoop-based colostrum brands use different serving sizes, so never carry these teaspoon amounts over to another product.

How often: once a day, and what to do after a missed dose

The current label gives a daily dose, which we read as once a day. The brand's website says "once or twice a day" alongside its own chart. No dog study has compared the two, and giving the label amount twice doubles the daily intake, so stay at once a day unless your vet suggests otherwise. Loose stool is the most common complaint with colostrum, and it is more likely at higher amounts.

Steady daily use matters more than the exact time. Tie the dose to something you already do every day, such as breakfast or the first walk, and keep the jar where you prepare food.

• Missed it earlier today: give it when you remember.
• Missed yesterday: carry on with the normal amount. Do not double up to catch up.
• Missed a few days: restart at the normal amount. If your dog's stomach was sensitive at the start, use half for a couple of days.
• Missed a week or more during a trial: restart your diary count, because the gap makes the comparison unreliable.

If your dog already gets an allergy chew that lists colostrum, count that before adding a powder. Two colostrum sources at once make it harder to judge either one.

The first two weeks

1. Before day 1: weigh your dog and read the chart on your jar. Get your vet's approval first if your dog has kidney disease, a dairy or beef allergy, takes prescription medication, is in a food-elimination trial, or is pregnant, nursing or a young puppy. The label itself says safe use in pregnant or breeding animals has not been proven.
2. Days 1 to 7: give the week-one amount once a day, at the same time. Watch stool and appetite. Mild gas or slightly soft stool can happen; if it does, hold at the half amount a few more days.
3. Week 2: move to the full label amount if stools stay normal. Keep the food, treats and other supplements the same, and start counting your 6 to 8 weeks from here.

Timing and mixing

The brand's website says colostrum should be given away from meals but can be mixed in a little broth or kefir. You may see "about 20 minutes before food" quoted online; we could not find that figure on the brand's site or the label, so treat it as unverified. We also found no dog study comparing an empty stomach with food. The trials summarized in a 2025 review of bovine colostrum and canine immune health (opens in a new tab) mixed colostrum into the diet and still measured changes in gut immune markers.

So use whichever your dog reliably accepts. A little plain, onion-free broth (or kefir, if your dog tolerates dairy) away from meals follows the brand's suggestion. The brand does not mention water, though a spoon of lukewarm water works as a carrier too. Stirring the dose into a spoon of wet food works for most other dogs. Dry powder on kibble tends to sink and get left behind. If your dog turns its nose up, our page on mixing tips for picky dogs has a lump-free paste method and more carriers.

Topical paste: a retailer claim

Some retailer descriptions of this powder suggest mixing it with distilled water into a paste for irritated skin, hot spots or bites. It does not appear on the current label, and we found no dog study on topical colostrum. Keep it off open wounds and off skin that is oozing, crusted or smelly; those can be infected and need a vet. A spreading hot spot usually needs clipping and cleaning, which our hot spots guide covers.

Storage, tracking and when to stop

The label carries a storage note to keep the jar cool and dry. Close the lid after each use, use a dry spoon, and keep it away from the kettle and stove. Shelf life is not stated on the label, so go by the date on your jar.

For the trial itself, a phone note each evening is enough: stool (firm, soft or loose), an itch score from 0 to 10, paw licking and ear scratching, and anything else that changed, such as a new food, a bath or the flea treatment date. Our page on how long colostrum takes to work has a scoring guide for both itch and stool.

Stop and call your vet for vomiting, diarrhea lasting more than a day or two, blood in the stool, hives, facial swelling, or a sudden jump in itching. Stop and reassess if your diary shows no change after 6 to 8 weeks at the label amount. A higher dose is not the next step.

Before you order, compare the directions in the product photos with the chart above, since packaging is changing over. If you would rather have a product with a stated IgG percentage, compare options in best colostrum for dogs.

FAQ

Why does my jar show a different chart from this page?

Four Leaf Rover's charts have changed between label versions, and the brand's website shows a different chart again. Follow the chart printed on the jar in your hand.

Can I use a regular kitchen teaspoon?

Not for small dogs. The smallest label amount is 1/8 teaspoon, and guessing that with a kitchen spoon can easily double or triple it. A measuring set with 1/8 and 1/4 teaspoon sizes, leveled off, is accurate enough.

How many jars do I need for an 8-week trial?

At the current label amounts, about one jar covers 8 weeks for a dog up to 60 lb. A 61 to 90 lb dog needs about two jars, and a dog over 90 lb about three. These are estimates from the label's 1.97 g per teaspoon and a 29.5 g jar.

Can I give colostrum only during allergy season?

You can. No study shows that seasonal or year-round use works better. If you go seasonal, start several weeks before your dog's usual flare so the 6 to 8 week review falls when it counts.

Can I put the powder on my dog's skin?

Some retailer descriptions suggest a paste of powder and distilled water for irritated skin. No dog study has tested this. Keep it off open, oozing or smelly skin, which may be infected and needs a vet.