Groomer's Edge Grimeinator is a gallon-sized, professional-grade deep cleaning shampoo built for dogs that get seriously dirty, and its 4.8 star average across reviews suggests groomers and multi-dog households are getting real value out of the bulk size.
Groomers, kennels, or multi-dog households that need a heavy-duty degreasing wash for muddy or grimy coats and want to buy in bulk rather than repurchasing smaller bottles.
Skip if
You only have one dog that gets a normal, occasional bath, since a full gallon and the $61.99 price point are built for high-volume or professional use, not casual home washing.
Form Liquid
Benefits Conditioning
Weight 9 Pounds
Priced 265% above the category median ($16.99 across 131 tracked models)
Our scorecard
4.7/5overall
Owner rating4.8/5
4.8 average across 449 owner ratings
Popularity1.3/5
449 owner reviews, fewer 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 and cat food, health, gear and grooming 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
["Packaged as a full gallon (128 fl oz) rather than a typical 16 to 24 oz bottle, Grimeinator is built around a proprietary blend of surfactants, proteins, fragrance oils, and thickeners designed for deep cleaning power on dogs that get genuinely dirty. It's unscented on top of that cleaning base and labeled safe for both cats and dogs, which broadens its use in multi-pet settings.", "The Grimeinator name and deep cleaning positioning point to a shampoo meant for tough jobs, dogs that roll in mud, get into grease, or otherwise need more than a light rinse. That's a different job than an everyday oatmeal or scent-focused shampoo, and the gallon size backs up that heavier-duty, higher-volume use case.", "At $61.99, it costs more upfront than a standard bottle, but the per-ounce price on a gallon is competitive for professional-grade shampoo. With a 4.8 star average across 449 reviews and around 200 bought last month, it's a smaller but clearly loyal customer base, consistent with a product aimed at groomers and serious multi-dog households rather than casual buyers."]
Pros
Full gallon size cuts down on repurchasing for groomers or multi-dog homes
Proprietary surfactant, protein, and thickener blend built for deep cleaning
Unscented formula
Safe for both cats and dogs
Excellent 4.8 star average rating
Cons
Higher upfront cost than standard bottle sizes
Overkill for a single dog needing only occasional light baths
Fewer reviews (449) than some mass-market competitors, since it's a more niche professional product
Specifications
Form
Liquid
Benefits
Conditioning
Weight
9 Pounds
Performance notes
The proprietary blend of surfactants, proteins, fragrance oils, and thickeners is built for cutting through grime and grease rather than just a gentle everyday rinse, which lines up with the deep cleaning and Grimeinator branding. The gallon format and 9 lb weight reflect a bulk, refill-style product meant to be portioned out over many washes rather than used up quickly.
What buyers say
With 449 reviews at a 4.8 star average, the feedback pool is smaller than mass-market shampoos, but the rating itself is among the highest in this category, and roughly 200 bought last month suggests a steady base of repeat professional and bulk buyers rather than one-off purchases.
Is this shampoo meant for regular at-home use or professional grooming?
The gallon size and deep cleaning, degreasing formula point toward groomers, kennels, or multi-dog households that go through shampoo quickly, though any owner with a dog that gets especially dirty could use it at home too.
Is it scented?
No, it's labeled unscented, which can be a plus for dogs sensitive to fragrance or households that prefer a neutral-smelling wash.
Can I use it on cats as well as dogs?
Yes, the listing specifies it's safe for both cats and dogs, which is useful for multi-pet households that want one deep cleaning shampoo for everyone.
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