earthbath Hypoallergenic Dog Shampoo- Gentle Pet Shampoo for Sensitive Skin
- Cat Shampoo
- Better rated than 79%
- More reviewed than 74%
A bulk, fragrance-free shampoo built for volume use and diluted grooming, not a small at-home bottle.
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How it ranks among the 38 cat shampoos we track
4.7★ across 1,800 Amazon ratings, Bayesian-smoothed toward the category average.
1,800 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 38 cat shampoos we track - how the scorecard works · full cat shampoos data report. Confidence: limited - incomplete product information.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 2.5 gallon bulk container of earthbath's fragrance-free, hypoallergenic dog shampoo, formulated for sensitive skin and diluted at a 33:1 ratio for grooming use.
The 2.5 gallon size and 33:1 dilution ratio point this toward groomers or multi-dog households rather than a single at-home bath, since properly diluted it stretches into a large number of washes. It's labeled cruelty free and made in the USA. This listing appears under a cat shampoo category, but the title and product name identify it as a dog shampoo, so that's the description followed here.
- 2.5 gallon bulk container
- Dilutes at a 33:1 ratio
- Fragrance-free, hypoallergenic formula
- Cruelty free, made in the USA
Who it's for
Groomers, kennels, or multi-dog households needing a bulk, fragrance-free shampoo for sensitive-skinned dogs, rather than someone bathing one dog occasionally.
Strengths and trade-offs
Drawn from this product's published specifications.
- Fragrance-free formula for sensitive skin
- 2.5 gallon size dilutes 33:1 for many washes
- Cruelty free and made in the USA
- Bulk size and dilution setup add inconvenience for a single at-home bath
- Listing provides no further ingredient detail
Performance notes
At a 33:1 dilution, one part shampoo mixes with 33 parts water before application, which is how the 2.5 gallon size extends across many washes rather than being used at full strength. The fragrance-free formulation targets dogs prone to skin reactions from scented products.
Specifications
| Brand | earthbath |
|---|---|
| Model | PH25G |
Other earthbath cat shampoos
How it compares
This product against the closest alternatives we track in cat shampoos.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| earthbath Hypoallergenic Dog Shampoo- Gentle Pet Shampoo for Sensitive SkinThis product | 4.7 / 5 | 1,800 | 2.7 / 5 |
| Burt's Bees for Pets Hypoallergenic Cat Shampoo with Shea Butter and HoneyBURT'S | 4.5 / 5 | 11,600 | 4.5 / 5 |
| Arm & Hammer 2-in-1 Deodorizing & Dander Reducing Shampoo for CatsARM | 4.6 / 5 | 3,500 | 4.4 / 5 |
| TropiClean OxyMed Dog Shampoo for Allergies and ItchingTropiClean | 4.6 / 5 | 3,900 | 4.4 / 5 |
| Mooncat Waterless Cat ShampooMooncat | 4.4 / 5 | 1,900 | 4.2 / 5 |
Similar cat shampoos from other brands
Questions about the earthbath PH25G
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is this shampoo scented?
No, it's labeled fragrance free, intended for dogs with sensitive skin.
How is the 2.5 gallon size meant to be used?
It's designed to be diluted at a 33:1 ratio before application, which is how the bulk size stretches across many washes.
Is this made for cats or dogs?
The product title identifies it as a dog shampoo, despite this listing appearing under a cat shampoo category.