Echinacea (coneflower) & the immune system

When the first cold rain sets in outside, many people instinctively reach for the little bottle of deep-red pressed juice – with that characteristic tingle on the tongue. This tingle is no coincidence: it comes from the alkamides of the coneflower, and it is also a good way into the question of why „echinacea is not simply echinacea“.

In short: Echinacea (coneflower) is a North American composite plant that has traditionally – and still today – been used above all during the cold season, mostly as pressed juice, tincture, tea or capsule and usually only for a short time (around 10 days at most). Depending on the species, E. purpurea, E. angustifolia and E. pallida are used; effect, compounds and the state of research depend heavily on species and product.

The key points at a glance

• What: Echinacea (coneflower), a North American composite plant; E. purpurea, E. angustifolia and E. pallida are used.
• Tradition: Long used by the indigenous peoples of North America; today a classic during the cold season.
• Interesting compounds: Alkamides, polysaccharides, caffeic acid derivatives (including echinacoside) and essential oils.
• Use: Pressed juice, tincture, drops, tea or capsule; usually short-term.
• Important: As a rule for no more than around 10 days at a stretch, not for children under 12, caution with a composite-plant allergy.

What is echinacea – and why does it tingle?

Echinacea belongs to the composite family (Asteraceae) and originates from the prairies of North America. The name „coneflower“ refers to its striking, cone-like flower shape; the botanical name derives from the Greek echinos (hedgehog) – because of the prickly flower cone. Depending on the species, the herb, flowers or root are used.

Its profile of compounds is characteristic. Echinacea contains alkamides, which produce the typical tingling and slight numbing sensation on the tongue – an audible quality signal of a fresh pressed juice. Added to this are polysaccharides, caffeic acid derivatives such as echinacoside and essential oils. Because this composition differs markedly between species and plant parts, the quality and standardisation of an echinacea product play such a large role.

Why people use echinacea

The indigenous peoples of the North American prairies used echinacea for generations as one of their most important medicinal plants. From there it made its way into European herbal medicine and secured a firm place – classically as a companion through the wet, cold season. This long, tradition-rich use in the context of the immune system and cold season is the reason for its popularity.

Today many people typically reach for echinacea when it turns unpleasant outdoors – as pressed juice, drops or tea, usually over a limited period. This describes how people traditionally use the plant and is not a statement about a proven effect.

What research is investigating

Echinacea is among the most intensively studied medicinal plants in the immune context. Research is particularly interested in the alkamides and polysaccharides and in how they interact with immune cells in the laboratory. There are numerous clinical studies in humans – yet the picture they paint is inconsistent: different species, plant parts, extraction methods and dosages make direct comparison difficult, and the results vary depending on the preparation and study design.

Honestly assessed, this means: echinacea is well researched, but the state of the evidence is contradictory precisely because of the great variety of products, and experts debate its significance controversially. No robust, established health-related claims can be derived from it – and accordingly no health claims are currently authorised for echinacea in the EU. We therefore remain neutral. You will find neutral basics in Nutrients for the immune system – overview and Immune system: vitamin C, D & zinc.

Use, forms and duration

Important on the duration of use: Echinacea is traditionally used not continuously but short-term – the usual period is no more than around 10 days at a stretch, followed by a break. Follow the specific instructions of the respective product, as these vary depending on species and concentration.

The three species – why the product matters so much

A common misconception is that „echinacea is echinacea“. In fact the three species used differ markedly – and this explains why the choice of product is so important:

Because species, plant part and manufacture determine the profile of compounds, two „echinacea products“ are not automatically comparable. So look for clear information and take your bearings from the particular preparation rather than from blanket statements. You can read how to recognise quality in general in Lab-tested – what does that mean?.

Honestly assessed: what is established and what is not

Well documented is the botanical diversity of the genus and its long traditional use by the indigenous peoples of North America. Extensively studied but contradictory is the human evidence – the great variety of products makes clear conclusions difficult. Not established and therefore not claimed are specific health effects; accordingly there are no authorised health claims. Echinacea is thus a tradition-rich, intensively researched plant – but not a remedy with a proven benefit.

Safety: allergy and who should avoid it

Since echinacea belongs to the composites, people with a known composite-plant allergy (e.g. to chamomile, mugwort, arnica or marigold) should avoid using it – allergic reactions are possible. Echinacea is usually not recommended for children under 12 years. People with autoimmune diseases or progressive systemic illnesses, as well as those taking immune-affecting medication, should refrain from using it or be sure to check its use with a doctor. During pregnancy and breastfeeding: check with a doctor beforehand. If symptoms persist, please consult a doctor.

Suitable products and further guides

You will find plants and nutrients around the immune system at Scheunengut in the Immune system category; classic companions for the cold season are also available under Vitamin C. If you want to accompany the cold season consciously, you will find ideas in our guides Building up the immune system in autumn, Preparing for the cold season, Allergy in spring & pollen season, Elder (Sambucus) and Propolis: effects & use.

Frequently asked questions (FAQ)

How long may echinacea be used at a stretch?

Echinacea is traditionally used short-term – the usual period is no more than around 10 days at a stretch, after which a break should follow. The exact instructions differ depending on the species, plant part and concentration of the product, so the manufacturer's information is your most important guide.

Why is echinacea not simply echinacea?

There are three species in use (E. purpurea, E. angustifolia, E. pallida) that differ markedly in plant part and profile of compounds. Added to this are various extraction methods. Two products bearing the name „echinacea“ are therefore not automatically comparable – the choice of the specific preparation is decisive.

Who should not use echinacea?

People with a composite-plant allergy (e.g. to chamomile, mugwort, arnica, marigold) should avoid it. It is likewise usually not recommended for children under 12 years. With autoimmune diseases, immune-affecting medication and during pregnancy and breastfeeding, its use should be checked with a doctor.

What does the tingling on the tongue from the pressed juice mean?

The characteristic tingling and slight numbing sensation comes from the alkamides, a typical group of compounds in echinacea. With a fresh pressed juice it is regarded as a sensory quality marker – it indicates that these substances are present.