Our verdict
Is Royal Canin Maxi Dermacomfort a good dog food?
We score it 33/100 (Poor). The main reasons are set out in "Why you might not" below, and every step of the calculation is shown under "How we calculated this score".
Complete extruded dry food for adult dogs, with wheat, vegetable protein extracts and rice as the main ingredients.
Only part of the analytical constituents are declared, so the nutritional picture is incomplete.
100% of this recipe has no printed percentage. Estimated shares are model estimates, not label facts.
Who is this food for?
Suits
- Labelled by the manufacturer for adult dogs
- Labelling or feeding guide is aimed at large dogs
- Doesn't list chicken, beef, turkey, lamb, venison, pork, duck as ingredients
Consider something else if:
- Your dog avoids fish: the label lists fish oil
- Your dog avoids grain: the label lists wheat
These points are derived from declared ingredients and analysis, not a substitute for veterinary advice. If your dog has a diagnosed condition, food choice is a medical nutrition decision: speak to your vet. Find foods that fit your dog.
Nutrition and feedingProtein 25% · Fat 17%
Typical analysis (as fed)
| Nutrient | As fed |
|---|---|
| Protein | 25% |
| Fat | 17% |
| Fibre | 1.60% |
| Ash | 5.90% |
| Omega-3 fatty acids | 11.40% |
| Omega-6 fatty acids | 36% |
Additives & feeding info
Feeding and storage
Storage
To be stored in a cool, dry place.
Feeding guide
Feeding instruction: see table. Batch number, factory registration number and best before date: see information on packaging. To be stored in a cool, dry place. Daily Feeding Recommendations Dog's Weight Normal activity level Moderate activity level Moderate activity level 26 kg 276 g (2+6/8 cups) 319 g (3+1/8 cups) 363 g (3+5/8 cups) 32 kg 322 g (3+2/8 cups) 373 g (3+6/8 cups) 424 g (4+2/8 cups) 38 kg 366 g (3+5/8 cups) 424 g (4+2/8 cups) 482 g (4+6/8 cups) 44 kg 409 g (4 cups) 473 g (4+6/8 cups) 538 g (5+3/8 cups) DO YOU HAVE ANY QUESTIONS ABOUT THIS PRODUCT? Our advisors will be happy to support you Monday, Tuesday, Thursday, Friday from 9:00am to 4:00pm and Wednesday 9:00am to 1:30pm via phone* on 0330 678 1540. You
Additives declared on the label
Nutritional additives
Vitamin A: 29500 IU/kg; Vitamin D3: 800 IU/kg; E1 (Iron): 73 mg/kg; E2 (Iodine): 6.1 mg/kg; E4 (Copper): 15 mg/kg; E5 (Manganese): 75 mg/kg; E6 (Zinc): 148 mg/kg; E8 (Selenium): 0.19 mg/kg
Technological additives
Preservatives; Antioxidants
Ingredients (16)100% of the recipe is estimated
Estimated composition
- carb 44.4%
- oil 23.2%
- supplement 11.2%
- veg 9.4%
- meat 6.1%
- fibre 5.6%
| # | As declared | Matched | Label reading | Declared % | Est. % |
|---|---|---|---|---|---|
| 1 | wheat | Wheat | carb · poor | - | 8.2 |
| 2 | vegetable protein isolate | Vegetable protein extracts | carb · poor | - | 7.9 |
| 3 | rice | Rice - white | carb · medium | - | 7.7 |
| 4 | animal fats | Unspecified Animal Fats and Oils | oil · poor | - | 7.4 |
| 5 | maize gluten | Maize gluten | carb · poor | - | 7.1 |
| 6 | maize | Maize / Corn | carb · medium | - | 6.9 |
| 7 | husked oats | Oats | carb · medium | - | 6.6 |
| 8 | minerals | Vitamins and minerals | supplement · medium | - | 6.4 |
| 9 | hydrolysed animal proteins | Hydrolysed Animal Protein | meat · medium | - | 6.1 |
| 10 | soya oil | Soybean oil | oil · medium | - | 5.9 |
| 11 | beet pulp | Beet Pulp | fibre · medium | - | 5.6 |
| 12 | fish oil | Fish Oil | oil · good | - | 5.4 |
| 13 | flax seeds | Seeds | veg · poor | - | 5.1 |
| 14 | fructo-oligo-saccharides | Fructo-oligosaccharides | supplement · good | - | 4.8 |
| 15 | borage oil | Borage oil | oil · good | - | 4.6 |
| 16 | marigold extract (source of lutein) | Calendula | veg · good | - | 4.3 |
- 1. wheat8.2% estimated
- 2. vegetable protein isolate7.9% estimated
- 3. rice7.7% estimated
- 4. animal fats7.4% estimated
- 5. maize gluten7.1% estimated
- 6. maize6.9% estimated
- 7. husked oats6.6% estimated
- 8. minerals6.4% estimated
- 9. hydrolysed animal proteins6.1% estimated
- 10. soya oil5.9% estimated
- 11. beet pulp5.6% estimated
- 12. fish oil5.4% estimated
- 13. flax seeds5.1% estimated
- 14. fructo-oligo-saccharides4.8% estimated
- 15. borage oil4.6% estimated
- 16. marigold extract (source of lutein)4.3% estimated
Trust and sourceNo recalls recorded in our database · checked 2026-09-08
Brand and contact: Royal Canin
Trust and provenance
- Recall history
- No recalls recorded in our database
- Label data last checked
- 2026-09-08
- Scored with
- Model v3 (methodology)
- Product page
- www.royalcanin.com
Recall history is presentation-only and never affects the score. Dates are when we recorded the data, not when the manufacturer last changed the recipe.
Spotted a mistake in this listing? Report it here and we'll take a look.
Score details and methodologyCalculations, history and evidence
Recipe: how the 1-100 score is calculated
Why this score?
This recipe achieves a final score of 33 out of 100. Several factors influence this rating. Specifically, ingredients without printed percentages contributed -10.6, while the processing format resulted in -6.7. Additionally, the carbohydrate content contributed -5.3 and the oil and fat content added -2.5.
Scored with model v3 on 2026-10-25. Each component is the feature value for this product multiplied by the model's published coefficient.
| Component | Input | Coefficient | Contribution |
|---|---|---|---|
| Base score | - | 30.909 | +30.91 |
| Average ingredient quality | 0.1 | 9.191 | +0.84 |
| Carb share of dry matter | 46.2% | -0.115 | -5.32 |
| Oil share of dry matter | 27.2% | -0.092 | -2.50 |
| Vegetable share of dry matter | 1.7% | -0.005 | -0.01 |
| Supplement share of dry matter | 12.2% | -0.012 | -0.15 |
| Recipe graded poor | 35.7% | -0.065 | -2.32 |
| Number of poor ingredients | 5 | -0.876 | -4.38 |
| Largest single poor ingredient | 8.2% | 0.060 | +0.49 |
| Undeclared quantities | 100.0% | -0.106 | -10.56 |
| Complete diet | yes | 2.294 | +2.29 |
| Low meat (under 10% of dry matter) | yes | -3.158 | -3.16 |
| High carb and low meat | yes | -1.180 | -1.18 |
| Additive penalty | -0.91 | 0.222 | -0.20 |
| Processing multiplier | 0.98 | 33.786 | +33.11 |
| Processing: Dry Extruded | yes | -6.713 | -6.71 |
Show all 40 components
| Component | Input | Coefficient | Contribution |
|---|---|---|---|
| Base score | - | 30.909 | +30.91 |
| Average ingredient quality | 0.1 | 9.191 | +0.84 |
| Meat share of dry matter | 0.0% | 0.096 | +0.00 |
| Carb share of dry matter | 46.2% | -0.115 | -5.32 |
| Oil share of dry matter | 27.2% | -0.092 | -2.50 |
| Vegetable share of dry matter | 1.7% | -0.005 | -0.01 |
| Additive share of dry matter | 0.0% | 0.163 | +0.00 |
| Supplement share of dry matter | 12.2% | -0.012 | -0.15 |
| Other share of dry matter | 0.0% | -0.375 | +0.00 |
| Unrecognised share of dry matter | 0.0% | -0.027 | +0.00 |
| Recipe graded poor | 35.7% | -0.065 | -2.32 |
| Poor-quality meat in recipe | 0.0% | -0.179 | +0.00 |
| Number of poor ingredients | 5 | -0.876 | -4.38 |
| Largest single poor ingredient | 8.2% | 0.060 | +0.49 |
| Undeclared quantities | 100.0% | -0.106 | -10.56 |
| Prints ingredient percentages | no | 0.000 | +0.00 |
| Complete diet | yes | 2.294 | +2.29 |
| Frozen or chilled fresh | no | 0.000 | +0.00 |
| High meat (30%+ of dry matter) | no | 0.707 | +0.00 |
| Low meat (under 10% of dry matter) | yes | -3.158 | -3.16 |
| High carb and low meat | yes | -1.180 | -1.18 |
| Meat share × printed percentages | 0.0 | 0.000 | +0.00 |
| Meat share × fresh | 0.0 | 0.000 | +0.00 |
| Fresh × high meat | 0.0 | 11.084 | +0.00 |
| Additive penalty | -0.91 | 0.222 | -0.20 |
| Processing multiplier | 0.98 | 33.786 | +33.11 |
| Processing: Raw | no | -0.054 | +0.00 |
| Processing: Fresh Chilled | no | -2.354 | +0.00 |
| Processing: Fresh Frozen | no | -2.354 | +0.00 |
| Processing: Fresh Refrigerated | no | 0.000 | +0.00 |
| Processing: Fresh Shelf | no | -0.672 | +0.00 |
| Processing: Dry Freeze Dried | no | 6.629 | +0.00 |
| Processing: Dry Air Dried | no | 6.331 | +0.00 |
| Processing: Dry Cold Pressed | no | -6.713 | +0.00 |
| Processing: Dry Baked | no | -6.713 | +0.00 |
| Processing: Dry Extruded | yes | -6.713 | -6.71 |
| Processing: Dry Semi Moist | no | -6.174 | +0.00 |
| Processing: Dry Muesli | no | -10.146 | +0.00 |
| Processing: Wet Pate | no | -0.672 | +0.00 |
| Processing: Wet Chunks | no | -0.672 | +0.00 |
- Processing-type offset
- +0.02
- Additives declared on label
- +2 transparency bonus
- Subtotal
- 33.2
- Final score
- 33/100
Contributions are rounded to two decimals, so they may not sum exactly to the subtotal. The full coefficient table is published on the methodology page.
Score history across model versions
The score shown above is always computed with the latest published model. Earlier scores are kept for the record and are never edited or deleted; a scoring change ships as a new model version with a public write-up on the methodology page.
Nutritional: declared analysis vs reference ranges
How the declared analysis compares with FEDIAF reference ranges for adult dogs. The label prints as-fed values; we convert to a dry-matter basis before scoring, and the bands are dry-matter ranges. Scores rise to 100 at the band midpoint: the reference is adequacy, not maximisation. Nutrients with a published upper limit taper again above it; fat is policed through calorie density rather than a direct penalty.
| Nutrient | As fed (label) | Dry matter (scored) | Score |
|---|---|---|---|
| Protein | 25 | 27.6 (band 18 to 40%) | 96.2 |
| Fat | 17 | 18.8 (band 5.5 to 20%) | 100 |
| Fibre | 1.6 | 1.8 (band 0.5 to 5%) | 86.9 |
| Omega fatty acids (omega-6 and omega-3) | - | - | 100 |
Omega fatty acids (omega-6 and omega-3): scored as the mean of its declared components (omega-6 100). The FEDIAF minimum for omega-6 is linoleic acid specifically.
Scored over 4 declared nutrients (combined weight 60); undeclared nutrients do not affect the score. Moisture was not declared and was estimated at 9.5% from the food type.
Declared fortification: 8 nutritional additives on the label
- Vitamin A: 29500 IU/kg
- Vitamin D3: 800 IU/kg
- E1 (Iron): 73 mg/kg
- E2 (Iodine): 6.1 mg/kg
- E4 (Copper): 15 mg/kg
- E5 (Manganese): 75 mg/kg
- E6 (Zinc): 148 mg/kg
- E8 (Selenium): 0.19 mg/kg
Low confidence: partial analysis or moisture estimated from the food type.
This measures agreement with published reference ranges, not suitability for an individual dog. For medical conditions, follow veterinary guidance.
Transparency: what the label discloses
How much the manufacturer discloses, measured against the FEDIAF Code of Good Labelling Practice and Regulation 767/2009. Mandatory items dominate the weighting.
| Item | Points |
|---|---|
| Ingredient list on the label (mandatory) | 10/10 |
| Printed percentages on the label (voluntary) - not on file | 0/20 |
| Analytical constituents declared (mandatory) - not on file | 0/15 |
| Additives declared (mandatory) | 10/10 |
| Energy value declared (voluntary) - not on file | 0/5 |
| Complete/complementary designation (mandatory) | 5/5 |
| Feeding guidance given (mandatory) | 10/10 |
| Manufacturer identity and address (mandatory) | 5/10 |
| Country of manufacture stated (voluntary) | 10/10 |
| Batch and date labelling (mandatory) | 5/5 |
Capped at 60: mandatory items missing (Analytical constituents declared).
Safety: recall history
Recall and safety-notice history, time-decayed. This dimension is shown alongside the score and never feeds the headline number.
No recalls recorded in our database.
See all current recalls we track.
Evidence: what the brand claims, and what supports it
The claims made on the pack and product page, checked against the declared label. We record claims as stated; "consistent" means our stored label data supports the claim, "contradicted" means it conflicts with it. Functional claims are recorded but never scored.
Claims on file; none we can check against the label
| Claim | Type | Check | Substantiation |
|---|---|---|---|
| For adult and mature large breed dogs (from 26 to 44 kg) - Over 15 months old - Dogs prone to skin irritation and itching (on page) | Functional | not checkable | Manufacturer assertion |
| 91% of owners are satisfied after 2 months (on page) | Functional | not checkable | Manufacturer assertion |
| high-quality, low-allergen protein is included in this exclusive formula (on page) | Content | not checkable | Manufacturer assertion |
| This product includes Omega-3 and Omega-6 fatty acids, such as EPA, DHA and GLA (on page) | Nutrient | not checkable | Manufacturer assertion |
The full scoring method is published. See the methodology for exactly how the headline score and each dimension are calculated.
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