Four Leaf Rover Colostrum: Buyer Questions by Topic

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Four Leaf Rover is plain New Zealand colostrum in a small 1.04 oz jar: about two months for a 31-60 lb dog, one month at 61-90 lb, and no IgG figure on the label. The jar carries the NASC seal, and no dog study has measured its effect on itching. The pages below take the questions buyers ask most.

Buyer questions

• Whole Colostrum vs Immunoglobulin Supplements for Itchy DogsWhole colostrum vs IgG-standardized powders for itchy dogs: what Four Leaf Rover, PupRx and Peak Pets contain, what an IgG number means, and how to pick.

Before you buy: a short checklist

If any answer is "no" or "not sure", the linked pages explain what to do instead.

1. Your dog has no confirmed dairy or beef allergy. Bovine colostrum is a cow's milk product. If your dog is allergic to either, or is in the middle of a food-elimination trial, ask your vet before adding it.
2. A vet has looked at the itch, if itching is the reason. Red, oozing or smelly skin, ear infections and sudden severe itch need a diagnosis before any supplement. See vet and OTC allergy options for what usually comes first.
3. Your expectations match the evidence. The few dog studies on bovine colostrum looked at gut and immune markers and vaccine response, and none measured itching; they are listed in colostrum for dogs.
4. You are happy without a potency number. Four Leaf Rover does not state an IgG percentage. If you want a number to compare brands, a powder that states one is a better fit.
5. The jar size works for your dog. The marketing panel on the jar says "60 Day Supply Large Dog". That holds at the 1/4 teaspoon dose for 31-60 lb dogs; a 61-90 lb dog gets about 30 days and a dog over 90 lb about 20.
6. You have the right spoons. Label amounts start at 1/8 teaspoon, so you need a measuring spoon that small. Follow the chart printed on your own jar; the dosage calculator gives the amount for your dog's weight.
7. You can give it daily for six to eight weeks. That is the practical review point we use across the site.

Where to go next

• Label facts versus brand claims: Four Leaf Rover Bovine Colostrum review and specs.
• Still choosing a brand: seven colostrum powders compared by source, IgG and container size.
• Itch relief as the main goal: fish oil for dogs with allergies, the supplement with stronger evidence.
• Kidney disease, puppies, lactose: colostrum safety questions by situation.

Before ordering, check that the product page still describes a single-ingredient New Zealand colostrum. Packaging may vary while the label is being refreshed, so when the jar arrives, dose from the directions printed on it.

FAQ

Is Four Leaf Rover colostrum worth buying for an itchy dog?

It may support gut and immune health, but no dog study has measured itching with colostrum, so treat it as an add-on to vet-guided allergy care. If itch relief is the main goal, fish oil has stronger evidence.

What should I compare between Four Leaf Rover and other colostrum brands?

Check whether the product is single ingredient, whether it states an IgG or immunoglobulin percentage, how long the container lasts at your dog's weight, and how clear the dosing chart is. Four Leaf Rover lists nothing but colostrum on the label but does not state an IgG level.

How long does one jar of Four Leaf Rover colostrum last?

The jar holds 1.04 oz (29.5 g), about 15 level teaspoons. At the current label dose that is roughly 120 days for a dog up to 30 lb, 60 days at 31-60 lb, 30 days at 61-90 lb and 20 days over 90 lb. These are our estimates.