The Library · Vol. 01Entry No. 102· Chapter 11

Japanese Knotweed

Polygonum cuspidatum

A fast-growing plant native to East Asia, used for centuries in Traditional Chinese and Japanese medicine. Japanese Knotweed is the most concentrated natural source of trans-resveratrol — the stilbenoid compound studied extensively for its role in activating longevity-linked sirtuin pathways.

1
Active compounds
2
In our products
2
Clinical citations
11
Longevity & Cellular Energy
Japanese Knotweed (Polygonum cuspidatum) — botanical watercolor illustration

Polygonum cuspidatumBotanical illustration

§ 1The molecules

Active compounds.

No.01

Trans-Resveratrol

Why this matters

  • 01Activates SIRT1 - the 'longevity gene' pathway*
  • 02Supports cardiovascular health and healthy blood flow*
  • 03Powerful antioxidant that supports cellular health*

*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

§ 2Receipts

What the research shows.

Systematic review and meta-analysis of 17 RCTs (n=736) examining resveratrol supplementation on inflammatory markers. Resveratrol significantly reduced TNF-alpha (p=0.002) and hs-CRP (p=0.033) versus placebo, supporting its use as an adjunct anti-inflammatory agent in metabolic diseases.Koushki et al., Clinical Therapeutics, 2018
Updated meta-analysis of 35 RCTs evaluating resveratrol's effect on C-reactive protein. Resveratrol significantly reduced both hs-CRP (-0.40 mg/L, p=0.01) and CRP (-0.31 mg/L, p<0.001). Subgroup analysis showed that supplementation lasting 10 weeks or longer had the greatest effect.Gorabi et al., Phytotherapy Research, 2021
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