Allergon pollen allergens

We manufacture pollen allergen source material from around 100 different plant species that grow all over the world. The manufacturing scale ranges from small scale collections, yielding a few hundred grams, to large scale production batches, yielding more than 100 kg of pure pollen.

See a selection of our most common pollen allergens

Own cultivation

The flowers used for pollen production are either cultivated or collected from the wild. A majority of the plants that we cultivate is farmed near our headquarters in the south of Sweden. This is also where most of our teams of collectors are based during collection in the wild. The center for our collection of pollen in the US is located in the state of Missouri where we also have the capacity to carry out the first steps of purification.

Approved partners

In order to source pollen from almost anywhere in the world, we have established a vast network of approved partners. To ensure our quality standards, we regularly visit and audit our partners. In addition, all pollen batches must undergo final processing and quality control at our headquarters before release.

Good Agricultural and Collection Practices

Our cultivation and harvesting follows Good Agricultural and Collection Practices (GACP). A typical production starts by securing the fields, followed by controlling and sowing the seeds. During cultivation, the fields are regularly inspected by trained personnel, and when the blooming season is approaching, the inspection frequency increases.


The harvest needs to be carried out at exact the right time; if the flowers are picked too early, many of the pollen grains may be immature, and if they are picked too late, there is a risk that pollen will be lost in the wind, both events resulting in a low production yield. Grasses are usually harvested by collecting the flower heads using a custom made combined harvester, whereas species collected in the wild usually are hand-picked. Collection of pollen from trees such as Birch or Alder requires sky-lifts to reach the high hanging male catkins.


After harvest, the flowers go through a number of purification steps to produce the final pollen allergen source material. The entire manufacturing process is long and requires rigorous planning; the lead time from securing the fields until final release of the pollen batch can be up to 18 months.

About pollen allergens

Pollen is central in the reproduction of plants and is used by the plant to transfer male genetic material to the female part of the reproductive system. Pollen comes in a wide variety of sizes, forms and shapes. The pollen of anemophilous, or wind-pollenated species relies on the wind to transfer the pollen and is therefore relatively large and light-weight. It is typically released in large quantities and can travel long distances. Entomophilous, or insect pollinated, species use insects to transfer their pollen. The pollen is usually sticky and small, with a high density. The diameter of pollen grains ranges from around 10 μm, in case of the smallest insect pollinated species up to around 100 μm for the largest wind-pollinated species.

Pollen allergy is a global health problem with typical symptoms of the upper respiratory tract being running nose and itchy eyes. Asthma is also common among pollen allergic patients. The prevalence of allergy to specific species depends on the geographic area, with grass and tree pollen allergy usually being dominant in the cool-temperate areas. In warmer climates the Mediterranean, allergy to olive trees (Olea europaea) and wall pellitory (Parietaria spp.) is common. The dominant pollen allergy on the American continent, common ragweed (Ambrosia artemisiifolia), is also spreading to the European continent where it, in some parts, is a growing problem. In Japan, the by far most dominant pollen allergen comes from the Japanese cedar tree (Cryptomeria japonica).

Cross-reactivity, attributed to a few protein families, is common between pollen species. For closely related species, e.g. for the early blooming trees (Birch, Hazel and Alder) or for grasses, the cross-reactivity is usually clinically important due to cross-reactivity between the disease driving major allergens. Cross-reactivity between pollen allergens and related allergens in foods (e.g. birch pollen-apple) give rise to the oral allergy syndrome that causes swollen and itchy mouth and throat when eating specific foods.

Our most common pollen allergens

This is a selection of our pollen allergens. Please do not hesitate to contact us if you have any additional requests for allergen source material.

Article No. Scientific name - grasses Synonyms Common name
0194 Avena sativa Avena byzantina, Avena orientalis Cultivated oats
0109 Dactylis glomerata Orchard grass
0110 Festuca pratensis (elatior) Meadow fescue
0112 Holcus lanatus Notholcus lanatus Velvet grass
0207 Hordeum vulgare Hordeum sativum Cultivated barley
0214 Lolium perenne Lolium boucheanum Perennial rye grass
0113 Phleum pratense Phleum nodosum Timothy
0116 Poa pratensis Poa angustifolia Kentucky bluegrass
0117 Secale cereale Secale segetale Cultivated rye
0159 Triticum aestivum Triticum vulgare, Ttriticum sativum Wheat
Article No. Scientific name - trees Synonyms Common name
0123 Alnus glutinosa Black alder
0125 Betula pendula Betula verrucosa White birch
0127 Corylus avellana Hazel, filbert
0128 Fagus sylvatica European beech
0420 Juniperus ashei Juniperus sabinoides, Juniperus mexicana Mountain cedar
0325 Olea europaea Olea chrysophylla European olive
0142 Quercus robur Quercus pedunculata English oak
Article No. Scientific name - flowers/weeds Synonyms Common name
0205 Ambrosia artemisiifolia Ambrosia elatior Common ragweed
0101 Artemisia vulgaris Common mugwort
0204 Chenopodium album Chenopodium reticulatum Lambs quarter
0378 Kali soda Salsola kali Russian thistle
0647 Parietaria judaica Parietaria diffusa Wall pellitory
0291 Parietaria officinalis Parietaria erecta Erect wall pellitory