Hill's Prescription Diet Canine Derm Defense

£17.50 – £66.65 From £5.55 per kg
  1. 2kg
  2. 5kg
  3. 12kg

This is a specialist veterinary product. We will ask you a simple set of questions to confirm that you are buying the correct medicine for your pet and know how to use it safely

Warning: By law we cannot sell this product to anyone under 18, by placing an order with us you are confirming that you are over the age of 18.

Order by 3pm for Express Courier Delivery  Some of the items we sell are a bit too bulky to fit on our delivery vans so we offer our customers Next Day Delivery via courier. Deliveries are made from 8am - 8pm Monday to Saturday and 9am - 5pm on Sundays. Your delivery slot will only be confirmed once your order has been placed.

Prescription Diet Derm Defense is the first & only clinical nutrition formulated to support skin function in dermatosis due to environmental causes by maintaining normal immune system and helping the skin barrier against future episodes.

Please note that some Derm Defense bags could have 'Environmental Allergies' on the front, rather than 'Skin Care'. If you receive a bag like this, please be assured that the food inside has not changed.

Key Benefits

  • HISTAGUARD COMPLEX, a proprietary blend of bioactives and phytonutrients 
  • Continuously MAINTAINS NORMAL IMMUNE SYSTEM with natural sources of polyphenols 
  • Supports SKIN HEALTH with Vitamin A, zinc and essential fatty acids 
  • HistaGuard complex, a proprietary blend of bioactives and phytonutrients 
  • High level of Omega 3 and 6 fatty acids 
  • Clinically proven antioxidants 
  • Dampening the immune response to environmental allergens 
  • Suppressing histamine release


Maize, brewers' rice, chicken (17%) and turkey meal, maize gluten meal, digest, dried whole egg, soybean oil, flaxseed, animal fat, dried beet pulp, fish oil, minerals, vitamins, taurine, trace elements, and beta-carotene. 
With a natural antioxidant (mixed tocepherols).


As fed:

Protein 20.8%, Fat 15.5%, Carbohydrate (NFE) 48.8%, Fibre (crude) 1.5%, Moisture 8.5%, Calcium 0.68%, Phosphorus 0.55%, Sodium 0.27%, Potassium 0.78%, Magnesium 0.08%, Omega-3 1.66%, Omega-6 4.36%, Essential fatty acids 6.02%

Feeding Guide

Body Weight (kg) / Day grams 
2.5kg / 50 - 70 
5kg / 85 - 115 
10kg / 140 - 195  
20kg / 235 - 325 
30kg / 320 - 445 
40kg / 400 - 550 
50kg / 470 - 650 
60+ / 10g per kg