Japanese Knotweed on the European supplement market
Most ingredient pages tell you what Japanese Knotweed is. This one shows how the European supplement market actually uses it — who sells it, who advertises it, and at what price.
RavenBI Market Intelligence · measured 25 Oct 2026 · observed, not estimated. Ad counts are active creatives in Meta's public Ad Library; product and price data come from public listings across the EU and US. Figures change weekly.
RavenBI tracks 182 Japanese Knotweed products from 115 brands across the EU and US. 1 brands advertise it on Meta right now, and new-ad activity cooled 50% in the last 30 days. United Kingdom shows the heaviest advertising, while Spain has the largest shelf. The median EU shelf price sits around €43.
New Japanese Knotweed ads launched per month on Meta — last 6 months.
How brands use Japanese Knotweed, market by market
Products and brands that sell it, active ads and brands that advertise it, and the median shelf price — per market.
| Market | Products | Brands selling | Active ads | Brands advertising | Median price |
|---|---|---|---|---|---|
| Germany | 25 | 15 | — | — | €39.97 |
| United Kingdom | 11 | 9 | 18 | 1 | £31.00 |
| France | 9 | 6 | — | — | €44.90 |
| Italy | 34 | 19 | — | — | €48.50 |
| Spain | 40 | 25 | — | — | €33.54 |
| Romania | 21 | 12 | — | — | 151.46 RON |
| United States | 20 | 14 | — | — | $53.45 |
| Austria | 2 | 2 | — | — | — |
Who is on the shelf right now
Top brands by number of Japanese Knotweed products, and the forms they use.
Most-used forms
| Form | Products |
|---|---|
| Japanese Knotweed Extract | 117 |
| Knotweed Extract | 18 |
| Păducel japonez (trans) | 18 |
| Polygonum cuspidatum | 8 |
| Păducel japonez (resveratrol) | 6 |
| Păducel japonez (>98%) | 6 |
Regulatory & positioning
| Botanical source | Polygonum cuspidatum |
|---|---|
| Novel food status | — |
| EFSA authorized health claims | None authorized |
| Marketed categories (observed) | longevity, heart health, liver health |
No EFSA-authorized health claim exists for Japanese Knotweed, yet brands market it for longevity, heart health, liver health — the gap between claim and positioning is itself a competitive signal.
Where Japanese Knotweed shows up
Across the ad channels and marketplaces RavenBI tracks.
See the ads, listings and shops behind these numbers →
What is Japanese Knotweed?
Japanese Knotweed (Polygonum cuspidatum) is a plant-based botanical extract commonly used in dietary supplements. It contains bioactive compounds such as resveratrol and other polyphenols. This ingredient is frequently included in formulations marketed for longevity, heart health, and liver health. Japanese Knotweed extract is valued for its natural origin and its role as a source of plant polyphenols. It is typically found in capsules, tablets, and liquid extracts designed for adult consumers interested in general wellness and age-related health maintenance.
This overview was generated with AI from public information and RavenBI's classification. Informational only, not medical advice.
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