Amber NaturalZ Vibactra Plus Herbal Supplement for Dogs, Cats, Birds, Guinea Pigs, and Rabbits | Herbs for Immune Health and Yeast Balance | 1 Fluid Ounce Glass Bottle Review

By Dr. Lena Ortiz · Canine wellness writer · Published 2026-06-06 · Updated 2026-06-25

4.6 (1,400) Amazon rating$28.47100+ bought last month

Our verdict

Amber NaturalZ Vibactra Plus is a liquid herbal blend sold for dogs alongside cats, birds, guinea pigs, and rabbits, positioned around immune health and yeast balance, and its 4.6 star average across 1,400 reviews suggests a loyal following even though this listing does not publish a detailed ingredient breakdown.

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Best for

Owners who want a multi-species herbal liquid aimed at general immune support and yeast balance and who are comfortable with a formula that does not list a full ingredient panel on this listing.

Skip if

You want to see an exact ingredient list and dosage before buying, or you're looking for a dog-only formula rather than one shared across several pet species.

Our scorecard

4.6/5 overall

Owner rating4.6/5

4.6 average across 1,400 owner ratings
Popularity4.0/5

1,400 owner reviews, more than most models here

The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other dog food and health supplements we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.

Overview

['Vibactra Plus comes in a 1 fluid ounce glass bottle and is marketed as a herbal supplement for immune health and yeast balance, with Amber NaturalZ positioning it for use across dogs, cats, birds, guinea pigs, and rabbits rather than dogs alone.', 'At $28.47 for a small bottle, it sits at a premium price per ounce compared to many mainstream supplements, but Amber NaturalZ has built a track record with similar products in its lineup, and this one carries a 4.6 star average across 1,400 reviews.']

Pros

Strong 4.6 star average across a large base of 1,400 reviews
Multi-species formula works across dogs, cats, birds, guinea pigs, and rabbits
Compact 1 fluid ounce liquid format is easy to dose into food

Cons

This listing does not publish a detailed active ingredient panel
Premium price for a 1 fluid ounce bottle compared to larger supplement formats
Only about 100 units bought in the past month, a lighter sales signal than some of Amber's other herbal lines

Performance notes

Because this listing does not break out active ingredients, form details, or dosing specs the way some of Amber NaturalZ's other herbal products do, buyers are largely going on the brand's reputation and this product's long review history. As a liquid, it should mix easily into food or water rather than forcing a pill on a dog.

What buyers say

A 4.6 star average across 1,400 reviews is a strong, consistent rating for a niche herbal supplement, though the modest 100 units bought in the past month suggests it's a smaller seller than some of Amber's other blends in this same product line.