HomeGuidesHypoallergenic shampoo ingredients
Sourcing Guide · 2026

Hypoallergenic dog shampoo: ingredients to look for

"Hypoallergenic" isn't one magic ingredient — it's a formulation approach built on gentle cleansers, soothing actives and the right pH. Here's what to specify (and what to avoid) for a sensitive-skin private-label wash.

1. The cleansing base: go mild

The surfactant is what cleans — and what most often irritates. For sensitive skin, favour mild, non-sulfate surfactants such as coco-glucoside, decyl glucoside, coco-betaine or sodium cocoyl sarcosinate, rather than harsher SLS/SLES. This is why "sulfate-free" is the headline claim on most hypoallergenic washes.

2. Soothing & moisturising actives

  • Colloidal oatmeal — the classic sensitive-skin soother; calming and moisturising.
  • Aloe vera — hydrating and gentle.
  • Glycerin / panthenol — humectants that keep skin and coat from drying out.
  • Coconut-derived conditioners — softness and slip without heavy silicones.

3. pH balance

Dog skin sits at a more neutral-to-slightly-alkaline pH than human skin, so a canine shampoo should be pH-balanced for dogs (roughly 6.5–7.5) — not simply a human formula relabelled. Getting this right reduces irritation and is worth stating on-pack as "pH-balanced."

4. Tearless, for puppies & faces

A tearless system uses especially mild surfactants so the wash won't sting eyes — essential for puppy and face-and-body shampoos. It's a distinct formulation choice worth specifying.

5. What to avoid (or use sparingly)

  • Harsh sulfates (SLS/SLES) in high levels on sensitive skin.
  • Heavy synthetic fragrance & dyes — common irritants; offer fragrance-free as an option.
  • Essential oils used as actives — tea-tree and others can irritate and can create regulatory issues (see our non-medicated guide); keep low and as fragrance only.
  • Medicated actives (chlorhexidine, ketoconazole) — these make the product medicated, not cosmetic.

Claims a hypoallergenic wash can honestly carry

With the right formula: hypoallergenic, tearless, sulfate-free, pH-balanced, soap-free, oatmeal & aloe, fragrance-free, plant-based, vegan, cruelty-free. All cosmetic, all non-medicated.

Spec it with Aimo. We build sensitive-skin washes on a mild sulfate-free base with oatmeal, aloe and a tearless option, pH-balanced for dogs — and we'll share the INCI so you know exactly what's in it. See our dog shampoo page or send the wash you want to match.

General formulation information for brands, not veterinary advice.

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