See pollen forecast for

Your allergy is our concern

We take allergy science and make it simple to help you live the life you want. Your best self starts here, with klarify.

An empty apothecary’s bottle and an old-fashioned scientific notebook filled with experiments recorded in pen and ink

Bright young allergy company with a pioneering history

klarify was born in 2018 to help people with allergy. But our parent company ALK is much older. Pharmacist Peter Barfod and Dr Kaj Baagøe were the first in Denmark to turn an everyday substance into an extract for allergy testing. It was 1923 and they chose goose feathers. (Nobody knew then it was dust mites in pillows and duvets making people sneeze.) Peter Barfod's lab became ALK, now a world leader in treatments for allergy.

We know our stuff and we talk like human beings

Tired girl snuggled up in a blanket in bed – perhaps she has hay fever symptoms, which can cause disturbed sleep¹

Want a different kind of life?

Ever missed out on something because of your allergies? You're not alone. It’s happening to more and more people around the world. Allergy is on the rise. And it touches every aspect of life; school, work, time spent with your family, seeing friends, having adventures. Unless you do something about it.

Let us help you manage your allergy symptoms

Young basketball player spinning a ball on his finger – he and his friend are smiling as they sit on the bench courtside

Easy-to-use tools and information you can trust

You don’t have to accept your symptoms. Everyone has options – and we want you to know what they are. We share allergy information and tools like our app. All to help you navigate from feeling worried to diagnosis and treatment. It's that simple.

What's stopping you? Discover your full potential

Happy young woman riding her bicycle towards the camera – it’s a bright spring day and everything is looking very green Happy young woman riding her bicycle towards the camera – it’s a bright spring day and everything is looking very green
klarify_manifesto
klarify_manifesto
Montage of 7 images of people doing the things they love: running, cooking, tennis, piano, climbing, playing guitar and surfing Montage of 7 images of people doing the things they love: running, cooking, tennis, piano, climbing, playing guitar and surfing

Your allergy.

Our concern.

Someone sitting on a park bench checking the klarify app on their mobile to see the pollen forecast for where they live

Put our smiley icon on your home screen

Our free allergy app can help you manage your hay fever wherever you are. Log how you’re feeling each day. We’ll give you up-to-date pollen info, plus tips on how to stay as symptom-free as possible.

Download now

Unleash your full potential

Matt Fullerton is a bit of a role model (although he won’t like us saying that). Pollen allergy and three world records in an outdoor sport by the age of 17. Be inspired.

MEET MATT

Ready to read on?

Expert articles written for real people – things you’ve always wanted to know about your allergies but didn’t know who to ask.

Man pausing on his bike ride in the woods to check in his bag – he always carries emergency anaphylaxis medication

Anaphylactic shock

About 30% of anaphylaxis cases lead to shock2, which can be irreversible3. Read our step-by-step guide on what to do in the event of a severe systemic allergic reaction.

Read More
Containers in the fridge labeled with the name of the person in the house with a food allergy – it can help keep them safe

Food allergies

The symptoms can be uncomfortable or even life-threatening. There are practical ways to manage the risk but you may need to carry emergency medication.4

Read More
Young girl tipping her head back to have eye drops – it’s one type of allergy medicine that can help ease children’s symptoms

Allergy medicines for kids

Children can find life quite a struggle when they have allergies. Find out about treatments that could make them feel better or even alter the course of their disease.

Read More

References

  1. Bousquet J, Khaltaev N, Cruz AA, et al. Allergic Rhinitis and its Impact on Asthma (ARIA) 2008 update (in collaboration with the World Health Organization, GA(2)LEN and AllerGen). Allergy. 2008;63 Suppl 86:8-160. doi:10.1111/j.1398-9995.2007.01620.x
    https://pubmed.ncbi.nlm.nih.gov/18331513/
  2. Keith PK, Denburg JA, Kruszewski J, Jankowski M. Anaphylaxis and Anaphylactic Shock. McMaster Textbook of Internal Medicine. Kraków: Medycyna Praktyczna. Retrieved 28 August 2025
    https://empendium.com/mcmtextbook/chapter/B31.II.17.1
  3. Haseer Koya H, Paul M. Shock. [Updated 2023 Jul 24]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan
    https://www.ncbi.nlm.nih.gov/books/NBK531492/
  4. Allergy UK. Food allergy. Retrieved 8 August 2025
    https://www.allergyuk.org/types-of-allergies/food-allergy/
GB-NPR-2500027 Sep. 2025
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