From 4-Legger® - Makers of 4-Legger USDA Certified Organic Dog Shampoo

Ingredient Name
Natural or Synthetic?
How Safe Is It?
Can It Be Organic?
Learn more
ALES or ALS
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Ammonium Lauryl Ether Sulfate (ALES or ALS) is a synthetic surfactant (cleaning and foaming agent) that contains PEG (polyethylene glycol). May be contaminated with 1,4-dioxane. 

Allantoin
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A nitrogen rich compound that promotes the healing of skin. It is synthetic or derived from the urine of animals or plants (like Comfrey). You'll need to verify the source of this ingredient given the high number of synthetics. 

Note: Allantoin is considered a drug and should be regulated by the FDA.

Aloe Vera Juice

(Aloe barbadensis) 

 

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A great moisturizer to soothe dry skin, aloe also acts as a natural conditioner and helps smooth the hair shaft, making the hair shinier, glossier, more manageable, and healthier.  Learn more

Ammonium Lauryl Sulfate
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A synthetic foaming agent that has links to organ system toxicity.

Ammonium Laureth Sulfate (ALES or ALS)
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A synthetic surfactant (cleaning and foaming agent) that contains PEG (polyethylene glycol). May be contaminated with 1,4-dioxane. 

Amphoteric surfactants
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These ingredients typically have contamination from 2-(2-Aminoethylamino)ethanol which has been linked to developmental / endocrine / reproductive effects and long term damage to vision.

Anionic Surfactants
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These idetergents have a negative charge on their hydrophilic end. The most commonly used are sodium decyl sulfate, sodium N-lauroyl-N-methyltaurate, sodium tetradecyl sulfate, ammonium laureth sulfate, and sodium dodecyl sulfate (SDS) These ingredients may have contamination from ethylene oxide and 1,4-dioxane which has been linked to cancer.

Apple Cider Vinegar

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Raw and unfiltered apple cider vinegar has long been known to be excellent to help relieve itchy skin, clean and tighten pores, soften and soothe the skin and reduce the presence of bacteria and fungus. Apple cider vinegar for fleas has been well documented as a naturally safe and effective solution.
Arcylates copolymer
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This is a tricky ingredient as it is made from plastic but is generally chemically stable so they don't break down when formulated to avoid irritation. Complex, right? 

There is the potential for contamination with styrene, a possible carcinogen.

Bottom line - you don't need plastics in your pet shampoo and they aren't planet friendly. 

Argan Oil
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Has both antibacterial and fungicidal properties and is very moisturizing to the skin.

Argan oil is made from the kernels that grow on the argan trees native to Morocco. Increased demand for argan oil has put the argan forests at significant environmental threat. They need to be sustainably sourced / harvested.

Artificial Colors
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Artificial colors have no business being in pet shampoo. 

Up to 25 - 50 synthetic ingredients are needed to create one single color.

Many are derived from coal tar, petroleum or heavy metals salts. When absorbed on the skin, they can increase the risk of irritation, blocked pores, and more.

Avena sativa
(oatmeal)

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There are many different types of oatmeal - oat milk (perferred) or colloidal oatmeal which has been ground into a fine powder and mixed with a liquid.

There are organic options for colloidal oatmeal but they are very rare and involve using a patent-pending extrusion process, which solubilizes the oat kernels to produce a natural or organic oatmeal without the need to process the oats extensively. Because this processing is more expensive, it is rarely used which is why we've ranked colloidal oatmeal lower than oat milk. 

Avocado Oil
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Helps the skin maintain hydration and minimizes damage from free radicals as it is full of antioxidants (such as vitamin E).