Dog Treats for Skin and Coat: The High-Omega Salmon Formula Explained

The skin and coat are the largest organ system in a dog’s body — and one of the most visible indicators of nutritional status. A dull, brittle coat; dry, flaky skin; excessive shedding; or persistent dandruff are among the most common reasons owners seek changes in their dog’s diet. The connection between omega-3 fatty acids, zinc, biotin, and coat quality is one of the most well-evidenced in canine nutrition.

This guide explains the nutritional science behind our Skin & Coat Wellness Dog Treats — a salmon-based formula with an omega-3 content of 5.3%, one of the highest in any commercially available complementary pet treat.

Table of Contents

The Biology of Canine Skin and Coat

The skin’s primary function is barrier protection — against water loss, microbial invasion, UV radiation, and physical damage. A well-functioning skin barrier requires a continuous supply of lipids (fatty acids) to maintain the intercellular matrix of the stratum corneum, the outermost layer of skin. When this lipid matrix is compromised — by omega-3 deficiency, zinc insufficiency, or oxidative damage — the barrier becomes permeable, leading to moisture loss (dry, flaky skin), increased susceptibility to allergens, and secondary bacterial or yeast overgrowth.

The coat itself is composed almost entirely of keratin — a structural protein whose quality depends on adequate supply of sulphur-containing amino acids and the zinc and biotin needed to process them into functional keratin fibres.

Omega-3 Fatty Acids: EPA, DHA and the Skin Barrier

Our Skin & Coat Wellness Treat delivers 5.3% omega-3 fatty acids — primarily as EPA and DHA from freshly prepared salmon (45%), salmon oil (7%), freshly prepared trout (5%), and algae. For context, most standard dog treats contain 0.1–0.5% omega-3.

EPA and DHA serve two critical functions in skin health:

  1. Structural: Maintaining cellular membrane integrity. EPA and DHA are incorporated directly into cell membrane phospholipids in the stratum corneum. This incorporation maintains membrane fluidity and structural integrity that “locks in” moisture and prevents trans-epidermal water loss (TEWL) — the primary mechanism of dandruff and dry skin.
  2. Anti-inflammatory: Reducing inflammatory cascade activation. EPA is a substrate for anti-inflammatory eicosanoids that compete with and reduce the production of pro-inflammatory prostaglandins derived from omega-6. In dogs with inflammatory skin conditions (atopy, food allergies, seborrhea), this anti-inflammatory effect directly reduces the severity and frequency of skin flare-ups.

Zinc: Skin Cell Proliferation and Coat Keratin

The Skin & Coat treat contains zinc at 155 mg/kg — over three times the level in the other treats in the range (which contain 85 mg/kg). Zinc plays several roles in skin and coat health:

  • Skin cell proliferation: Required for DNA synthesis and cell division in keratinocytes. Zinc deficiency leads to slower skin cell turnover and impaired barrier regeneration.
  • Coat keratin formation: Acts as a cofactor for enzymes involved in processing keratin precursors into structural proteins of the hair shaft. Low zinc results in brittle, dry, poor-quality coat.
  • Wound healing: Essential for collagen synthesis and the inflammatory response regulation involved in skin wound healing.

Certain breeds — particularly Siberian Huskies, Alaskan Malamutes, and other Nordic breeds — are genetically predisposed to zinc malabsorption syndrome and can develop severe skin and coat symptoms even on nutritionally complete diets. The elevated zinc in this treat makes it particularly relevant for these breeds.

Biotin: Fatty Acid Metabolism and Skin Cell Renewal

Biotin (vitamin B7) is included at 0.14 mg/kg. Its primary role in skin and coat health operates at the metabolic level: biotin is a cofactor for the carboxylase enzymes involved in fatty acid synthesis. Without adequate biotin, the synthesis of long-chain fatty acids needed for skin barrier lipid production is impaired, even when dietary omega-3 intake is high. Biotin also supports keratinocyte proliferation and efficient keratin production in the hair follicle. Signs of biotin deficiency include hair loss, seborrhea, and brittle nails.

Vitamin E: Antioxidant Skin Protection

The Skin & Coat treat contains vitamin E at 670 IU/kg — seven times the level in the digestive, calming, and immune treats. This high inclusion reflects the oxidative vulnerability of the fatty acids being delivered in this formula. Polyunsaturated fatty acids (PUFAs) like EPA and DHA are inherently susceptible to oxidation. Vitamin E (alpha-tocopherol) is the body’s primary fat-soluble antioxidant, protecting PUFA-containing cell membranes from lipid peroxidation — the process that damages skin cells and degrades the skin barrier.

Why Salmon and Salmon Oil, Not Just Fish Oil Capsules

The omega-3 in this treat is delivered primarily through whole food sources — freshly prepared salmon, dried salmon, and salmon oil — rather than generic “fish oil” supplement alone. Omega-3 fatty acids within whole fish tissue are esterified in phospholipid and triglyceride forms with better absorption than some refined fish oil supplements. The salmon also delivers selenium, iodine, and B vitamins that support the metabolic pathways utilising fatty acids effectively.

Watch: Skin & Coat Treats Explained

See the ingredients, benefits, and science behind our Skin & Coat Wellness Treats in this short video — or visit the full video page for a detailed breakdown.

Full Product Specifications

Composition

Freshly Prepared Salmon 45%, Sweet Potato 18%, Dried Salmon 8%, Salmon Oil 7%, Potato, Peas, Freshly Prepared Trout 5%, Lucerne, Dried Egg, Minerals, Omega 3 Supplement, Algae

Analytical Constituents

Crude Protein 25%
Crude Fat 19%
Crude Fibre 3%
Crude Ash 8%
Moisture 8%
Metabolisable Energy 393 kcal/100g
Omega-3 Fatty Acids 5.3%
Omega-6 Fatty Acids 1.6%

Key Micronutrients

Vitamin E 670 IU/kg
Biotin 0.14 mg/kg
Zinc 155 mg/kg
Vitamin A 15,000 IU/kg
Vitamin D3 2,000 IU/kg

Product Details

Kibble: Bone-shaped, 15mm × 10mm | Grain-free | Naturally preserved | All life stages | SKU: TDF | From £4.99

Buy Skin & Coat Wellness Dog Treats →

Frequently Asked Questions

How long before I see improvements in coat quality?

Coat and skin improvements from omega-3 and zinc supplementation typically become visible within 4–8 weeks of consistent daily use. Improvements in skin condition (reduced flaking, less dryness) often appear faster, within 2–4 weeks.

My dog already eats salmon dog food. Do they still need these treats?

It depends on the omega-3 level of the main diet. Most salmon dog foods contain 0.5–1.5% omega-3. Our skin and coat treat delivers 5.3% — a meaningful additional dose even if the diet is salmon-based. The zinc level (155 mg/kg) is also significantly higher than most complete foods.

Are these treats suitable for dogs with salmon allergies?

No. The primary protein sources are salmon and trout. For dogs with fish allergies, the other four treats in the functional range use different protein sources and are appropriate alternatives.

Are these suitable for dogs with atopy (environmental allergies)?

Yes, and particularly so. Omega-3 fatty acids have a well-documented anti-inflammatory effect that directly reduces the severity of atopic skin responses. The high vitamin E content provides additional antioxidant protection. These treats are grain-free, removing a common food-based inflammatory trigger. Many owners of atopic dogs use the skin and coat treat as a daily supplement alongside veterinary management.

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