Wahl Dirty Beastie Dog Shampoo, 5L Concentrate

Wahl Dirty Beastie is a concentrated liquid shampoo intended to clean dirty, thick or matted pet coats. Its 5-litre bottle is mixed with water at the stated 32:1 ratio, making it suited to repeated grooming rather than occasional small-bottle use.

At a glance

The listing gives a 32:1 water-to-shampoo mixing ratio. It also says to shake the bottle, wet the coat, lather from head to tail and rinse thoroughly.
Described for removing dirt from thick or matted coats and deodorising. The claimed uses are not independent performance verification.
The listing describes a fresh, fruity scent and lists aloe vera as a special ingredient.

Price

£23.79Save 18%

Reference price: ~~£28.99~~

Price checked: 12 Nov 2026

View offer

Often bought together

Wahl Oatmeal Essence Sensitive Skin Dog Shampoo, 5L Concentrated Formula | Gentle & moisturising for dry or sensitive skin, removes dirt & stains, reduces irritation, alcohol & paraben free

£28.80

Pros and cons

Pros

The large 5-litre volume and stated concentrate format suit frequent grooming or households washing multiple animals.
The listed 32:1 dilution gives a clear starting point for mixing the shampoo with water.
The listing identifies it as free from alcohol, gluten, parabens and phosphates.

Technical specifications

13 specifications

Identity
Brand	Wahl
Model	04-0920

Product and use
Target species	Dog
Other listed pet types	Cat, Dog, Horse, Small Animal
Recommended use	Cleaning Dirty Pets Coats
Form	Liquid
Scent	Fresh, Fruity
Special ingredient	aloe vera
Listed benefits	Cleansing
Material type free	Alcohol Free,Gluten Free,Paraben Free,Phosphate Free
Allergen information	Allergen-Free

Volume and weight
Liquid volume	5 Litres
Weight listed	5.25 Kilograms

What to know before buying

Listing details to confirm

The 32:1 ratio is stated as 32 parts warm water to one part shampoo. Shake before use, apply to a wet coat, rinse thoroughly and repeat only if necessary. The listing describes use across several animal types, while the target-species field specifically says Dog. Confirm suitability for your animal if needed.

What’s in the box

Included

See Description

Who is it for?

A good fit for

Dog owners who regularly wash dirty, thick or matted coats and want a large concentrated bottle.
Multi-animal households seeking a shampoo the listing says is suitable for several kinds of animals, subject to checking the label for their pet.

Less suited to

People seeking a ready-to-use shampoo without measuring or dilution.
Buyers who only need a small amount of shampoo or prefer a fragrance-free option.

Wahl Dirty Beastie Dog Shampoo, 5L Concentrate · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 1,125 ratings

5 stars84%84%
4 stars10%10%
3 stars4%4%
2 stars0%0%
1 star2%2%

Customer feedback is broadly favourable, highlighting dirt removal, soft and shiny coats, a pleasant fragrance and perceived value. Some customers report that the concentrated formula lasts through many washes. Those impressions are relevant for frequent grooming, but do not establish results for every coat or prove the listed dilution and performance claims.

Positive themes

Customers describe effective dirt and debris removal and report coats feeling soft and looking shiny.
The scent and concentrated format are commonly noted as positives in the supplied feedback.

Frequently asked questions

How should Wahl Dirty Beastie be diluted?

The listing specifies 32 parts warm water to one part shampoo. It recommends shaking the bottle first and applying the mixture to a wet coat.

Which animals is it intended for?

The target-species field says Dog. Other listing details describe suitability for cats, horses and small animals, and the manufacturer feature text names additional animals. Check the container directions for your pet.

What does the listing say it is designed to clean?

It is described for dirty, thick or matted coats, with deodorising also claimed.