Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
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Environmental Intolerance Test (Hair Sample)

Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
Environmental Intolerance Test (Hair Sample) - welzo
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£39.99
Sale price £39.99
88 Reviews

Our home environmental intolerance test is a convenient and reliable way to test for common irritants in your living space. Order your kit today and gain peace of mind knowing your home is a safe and comfortable place to be.

You will receive a PDF form upon placing an order via email. Please download this and send your sample back using the form provided.  

What does it test for?
  • One of UK's Most Comprehensive Environmental Intolerance Tests
  • Free 6 weeks food diary
  • Food intolerances
  • Gut health
  • Vitamin A-K
  • Metal sensitivities
  • Digestion Analysis
  • 975 items tested for
  • Environmental items
  • Food sensitivities
  • Emulsifiers Tested
  • Mineral analysis
  • Non-food sensitivities
  • Additives, colourings, sweeteners
Email when stocked
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Don’t just take our word for it

Assistant Athletic Trainer
Jordan Waits reviewed welzo.com
"I simply ordered the test online, received it in the mail a few days later, and took the test in the comfort of my own home using a quick finger prick. The instructions were clear and easy to follow, and the process itself was quick and painless."
Health & LIfe Coach
Roxy Richards reviewed welzo.com
"I followed the recommendations provided by Welzo, and I have to say, I feel so much healthier now. I have a lot more energy, and I just feel better overall. It's amazing how much of a difference small changes can make"
Digital Marketing Consultant
Niall Bert reviewed welzo.com
"When I received my results, I was very interested to see some hormonal imbalances. I didn't even know that was a possibility! But the Welzo report provided me with clear and detailed information about what was going on inside my body, and what I needed to do to address the imbalances."
  • Biomarkers
  • Information

Non-food items tested

Alder (Alnus glutinosa) Ampicilloyl Anisakis Apple Tree Artemisia Salina Ascaris Ash (Fraxinus excelsior) Aspen (Populus tremula) Aspergillus Fumigatus Aspergillus Niger Aster Barley (Hordeum vulgare) Bee Beech (Fagus silvatica) Bermuda grass Birch Blackberry bush Buckwheat Buttercup (Ranunculus spp.) Calluna Canaries Cats Chamomile (Matricaria chamomilla) Cherry tree Chile Pine (Monkey Puzzle) Chrysanthemum (C. morifolium) Clover (Triofolium spp.) Colonial bent grass (Agrostis tenuis) Cotton Currant bush Dahlia (Dahlia hybrida) Dandelion (Taraxum duplidens) Deer Epithelium Dogs Rye Scotch heather (Calluna vulgaris) Sheep’s wool Spelt Spruce (Picea abies) Stinging nettle (Urtica dioica) Storage Mite Strawberry Tall oat grass Wild oat (Avena fatua) Willow Wool Wormwood (Artemisia absinthium) Duck Duck feathers Duck, wild Dust E 999 Quillaja extract Foaming agent Elder (Sambucus nigra) Elm (Ulmus glabra) European beech European lime (Tilia europea) False acacia (Robinia pseudacacia) Fireweed/Great willow herb (Epilobium angustifolium) Fox Epithelium Glaskraut (Parietaria judaica) Goldenrod (Solidago virgaurea) Goose feathers Guinea pigs Hamsters Hawthorn (Crataegus spp.) Hazel (Corylus avellana) Hop (Humulus lupulus) Hornbeam (Carpinus betulus) Horse Bot Fly Horse chestnut (Aesculus hippocastanum) Horses House Dust Mite Hyacinth (Endymion non scriptus) Jacaranda Tree Japanese Cedar Japanese Millet Jasmine (Philadelphus spp.) Laburnum (Laburnum anagyroides) (Arrhenaterium elatius) Tansy ragwort (Senecio jacobaea) Timothy grass (Phleum pratense) Tulip Velvet Wallflower (Cheiranthus cheiri) Walnut tree Wasp Wheat (Triticum aestivum) Larch Latex Leather Lilac (Syringa vulgaris) Linden Tree Lupine (Lupinus polyphyllus) Lycra Mangrove Marguerite (Leucanthemum vulgare) Melde (Artiplex spp.) Mice Misteltoe Mosquito Moth Mouse Urine Proteins Mulberry Narcissus (Narcissus spp.) New Belgian Aster Nylon Oak (Quercus robur) Oats (Avena sativa) Parrot Feathers Peanut plant Pear tree Penicillioyl Perennial ryegrass (Lolium perenne) Pigeon Droppings Pigeons Pigweed (Chenopodium album) Pine (Pinus spp.) Pine, Scottish (Pinus sylvestris) Plane tree (Platanus acerifolia) Poplar (Populus spp.) Primrose (Primulus) Rabbits Ragweed (Ambrosia elatior) Rape (Brassica napus) Rats Rose (Rosa spp.) Rubber Rubber Tree

Nutritional tests

Acidophillus Adenine Allium Alpha Lipoic Acid Anthocyanidins Ascorbic acid (Vitamin C) Beta-Carotene Betaine Bio-flavonoids Biotin Bromelain Calcium Carotenoids Choline Chromium Citrus bio-flavonoids Copper Co-Q-10 Creatine Cystine Docosahexaenoic acid Eicosapentaenoic acid Ellagic acid Fibre Flavonoids Folate Folic acid Formic acid Gallic acid Genistein Germanium Glutamine Glutathione Iodine Iron Iso-Flavonoids Lactic acid L-Carnitine lecithin Lignans Lutein Lycopene Magnesium Mallic acid Manganese Melatonin Methionine Molybdenum Niacin Nicotinic acid Nucleic acid Omega 3 Omega 6 Oxalic acid Pantothenic acids Phosphorus Phytosterols Polyphenols flaxseed. Potassium Pro-anthocyanidins Pyridoxine Salicylic acid Saponins Selenium Silica Sodium Sulforaphane Tannins Tartaric acid Taurine Threonine Tryptophane Uric acid Vitamin A Vitamin A1 (Riboflavin) Vitamin B3 (Niacin) Vitamin B5 Vitamin B6 Vitamin C Vitamin D Vitamin D2 Vitamin D3 Vitamin F Vitamin H (Biotin) Vitamin K Vitamin K2 Vitamin P Vitamin. B1

Hormonal imbalances


  • Follicle Stimulating Hormone
  • Luteinizing Hormone
  • Oestradiol
  • Testosterone
  • Thyroid Stimulating Hormone
  • Thyroxine (T4)
  • Triiodothyronine (T3)

Metals tested for

Actinium (Ac) Aluminium Aluminium (Al) Antimony Argon (A) Arsenic (As) Barium (Ba) Beryllium Bismuth Boron (Bo) Bromine (Br) Cadmium Calcium (C) Carbon (Cc) Cerium (Ce) Chlorine Chromium (Cr) Uranium (U) Vanadium (V) Xenon (Xe) Zeaxanthin Zinc Zinc (Zn) Zirconium (Zr) Cobalt (Co) Copper Copper (Cu) Dysprosium (Dy) Erbium (Er) Europium (Eu) Fluorine (F) Gold Gold (Au) Helium (He) Hydrogen (H) Iodine (Ie) Iridium (Ir) Iron (Ferrous) (Fe) Krypton (Kr) Lead (Pb) Lithium (Li) Strontium (Sr) Sulphur (S) Tin (from canned food) Tin (Sn) Titanium (Ti) Tungsten (W) Magnesium (Mg) Manganese (Mn) Mercury (Hg) Molybdenum (Mo) Neon (Ne) Nickel (Ni) Nitrogen (N) Palladium (Pd) Phosphorus (P) Platinum (Pt) Plutonium (Pu) Potassium (K) Radium (Ra) Radon (Rn) Rhodium (Rh) Selenium (Se) Silicon (Si) Silver Sodium (Na)

Gut biome tests


  • Lactobaccillus Acidophilus
  • Streptomyces
  • Bifidobacterium Bifidum
  • Bacillus Coagulans
  • Lactobacillus Reuteri
  • Escherichia Coli
  • Acidophilus bifidus
  • Streptococcus Thermophilus
  • Streptococcus Faecium

Digestive Health & Metabolism Analysis

  • Amylase
  • Pepsin
  • Hydrochloric Acid
  • Bile salts
  • Lipase
  • Trypsin & Chymotrypsin
  • Enterokinase

Have you been feeling any of these symptoms lately?

The Food Intolerance blood test is suitable for individuals experiencing one or more of the following symptoms:

1. Mouth itching

2. Swelling of the face or mouth

3. Difficulty breathing

4. Visible red rashes on the skin or irritation of the skin

5. severe reactions to food such as tightening of the chest, difficulty in speaking or dizziness


Additional Information

If you suspect that you may be intolerant to certain foods, you may want to consider getting a food intolerance test. These tests can help you determine which foods your body has difficulty digesting or absorbing.


Home Food Intolerance Test

There are several different types of food intolerance tests. Each has its own advantages and disadvantages, so it is important to choose the right one for you. One type of test is called an elimination diet. This involves removing all potential allergens from your diet for a period of time and then slowly reintroducing them one at a time. This can be a very effective way to identify food intolerances, but it can be difficult to stick to such a strict diet. Another option is a skin prick test. This test is performed by pricking the skin with a needle that has been dipped in a solution containing a potential allergen. If you are allergic to that food, you will have a reaction on the spot where the needle was inserted. This test is relatively easy to perform and can be used to detect food allergies and intolerances.


A blood test is another option for determining food intolerance. This test measures the amount of IgG antibodies in your blood. IgG antibodies are produced in response to foods that your body perceives as being harmful. A high level of IgG antibodies may indicate that you are intolerant to that food.Finally, there is the hydrogen breath test. This test measures the amount of hydrogen gas in your breath. Hydrogen gas is produced when your body breaks down certain carbohydrates. A high level of hydrogen gas in your breath may indicate that you are intolerant to those carbohydrates.


No matter which test you choose, it is important to work with a qualified healthcare professional to interpret the results. They can help you determine whether or not you have a food intolerance and make dietary changes accordingly. With the right diagnosis and treatment, you can minimize the symptoms of food intolerance and live a healthier life.


Food intolerance is a condition that affects people's digestive systems. It occurs when the body has difficulty digesting certain foods, causing uncomfortable symptoms like bloating, gas, and diarrhoea. While food intolerance is not as serious as food allergies, it can still be very unpleasant and make it difficult to eat certain foods.


There are several different types of food intolerance, including lactose intolerance, gluten sensitivity, and fructose malabsorption. Lactose intolerance is the most common type, and occurs when people have difficulty digesting lactose, a sugar found in milk and other dairy products. Gluten sensitivity is a condition that affects the digestive system and causes uncomfortable symptoms like bloating, gas, and diarrhoea after eating foods containing gluten. Fructose malabsorption is a condition that occurs when people have difficulty digesting fructose, a sugar found in fruits and vegetables.


If you think you may have a food intolerance, talk to your doctor. There are several tests that can be done to determine which foods you are intolerant to. Once you know which foods to avoid, it will be easier to manage your symptoms. There are also several different types of dietary supplements that can help ease the symptoms of food intolerance. Talk to your doctor or a nutritionist about which supplements may be right for you.

Why take a test?

The Food Intolerance test will detect if you have any allergy to common food items such as tea, coffee, cow milk, pork, egg white, egg yolk, almond, wheat, gluten, oat and more specific food. Specific food items include Beef, pork, chicken, lamb, egg whites, egg yolk, cod, salmon, shrimp, crab, cow’s milk, casein, Spelt, wheat, rye, oats, rice, potato, Hazelnut, peanut, almond, soya, walnut, mustard, apple, orange, strawberry, kiwi, peach, banana, tomato, carrot, celery, onion, gluten, coffee, sesame, pepper (black), baker’s yeast, etc. 

5%
of children
in the UK have a food allergy that they are unaware about. UK has the highest number of people with food hypersensitivity in the world.
20%
of adults in the UK
experience hypersensitivity to certain types of food. Food intolerances are more common than food allergies in the UK.
  • how1 - welzo

    Order your test

    Order your home intolerance test. You will recieve a unique order number via email that can be used to download your return form.

  • how2 - welzo

    Take a hair sample

    Download your return form PDF sent to you via email. Take 5 - 7 strands of hair and place them in a sealable bag/envelope. Then return your sample to our lab for analysis.

  • how3 - welzo

    Results within 3 - 5 days

    Recieve your results via email in 3 to 5 working days. This will include a detailed report on active changes you can make to optimise your lifestyle.

Experts Opinion on Food Intolerance Tests

"Intolerances can have a lot of impact on people. This panel will give you an idea of any specific environmental intolerances that could be causing issues in your day to day life."


Dr Sameer Nakedar
MBBS, MRCGP, PGCert
Experts Opinion on Food Intolerance Tests

Understanding the Welzo Intolerance Tests

Watch this video to understand how intolerance tests work and how to collect your sample.

Convenient and fast
Convenient and fast

Welzo health tests are shipped straight to your address the very next day.

Secure and accurate
Secure and accurate

We are a team of doctors and scientists, making cutting edge analysis accessible.

24/7 Customer Support
24/7 Customer Support

We issue results 24/7, giving you personal insights into your body.

What is Welzo?

Welzo is a home intolerance and health testing company that analyzes a small sample of your hair to identify any food intolerances you may have.

How does the Welzo intolernace test work?

To take the test, you'll need to download a PDF form from our website, attach a few strands of your hair to the form in a sealable bag, and send it to our lab for analysis. Results are issued in 3-5 working days.

What kind of intolerances does Welzo test for?

Welzo tests for a wide range of food intolerances, including lactose, gluten, and other common food allergens.

Can Welzo's test be trusted?

Yes, Welzo's test is reliable and accurate. Our lab is staffed by highly trained technicians who use the latest testing methods to analyze your hair sample.

How will I receive my results?

Once your hair sample has been analyzed, we'll send you a report detailing any food intolerances that we've identified. This report will be sent to you via email.

What should I do if I receive a positive result for a food intolerance?

If you receive a positive result for a food intolerance, we recommend that you speak to your doctor or a registered dietitian to develop a plan to manage your symptoms.