Timing & pharmacokinetics
How long does He Shou Wu (Fo-Ti) take to work?
Onset timing for He Shou Wu (Fo-Ti) varies in the clinical literature. Onset timing is not well-quantified in our dataset, refer to clinical citations on the main entry.
Onset
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Half-life
–
Duration
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Timing
AM
Key facts
- typical dose
- 500–2000 mg
- dose frequency
- 1-2 doses
- timing
- AM
- with food
- with meal
- safety score
- 2/5
- evidence grade
- C
- class
- adaptogen
- PubMed citations
- 400
- legal status (US)
- Over-the-counter
- legal status (UK)
- Over-the-counter
- legal status (EU)
- Over-the-counter
- legal status (AU)
- Over-the-counter
- primary mechanism
- Anthraquinones, stilbenes, and phospholipids contribute to antioxidant and lipid-lowering effects.
Onset window
He Shou Wu (Fo-Ti) onset times in the published literature vary widely. Refer to the citations on the main He Shou Wu (Fo-Ti) entry for compound-specific pharmacokinetic data.
Food effect: Taking with food slows absorption but improves tolerance. Onset shifts 30–60 minutes later than empty-stomach dosing.
Half-life and dosing frequency
Half-life is not characterised in our dataset.
Acute vs. chronic effect
Some nootropics work the first time you take them (He Shou Wu (Fo-Ti) may or may not). Others, adaptogens, racetams, and most botanicals targeting BDNF or NGF pathways, require 2–4 weeks of daily dosing before the full effect emerges.
If you don’t feel anything after a single dose and the compound is in the chronic-effect category, that is normal, extend the trial to 2–4 weeks before evaluating. If it is in the acute category and you feel nothing, consider dose, vendor sourcing, or whether the compound matches your goal.
Protocol note from the He Shou Wu (Fo-Ti) entry
Only use processed (steamed with black bean) form. Avoid raw root preparations. Monitor liver function.
Mechanism, safety, and citations for He Shou Wu (Fo-Ti) are on the main reference page, see He Shou Wu (Fo-Ti). For full dose protocol see He Shou Wu (Fo-Ti) dosage. To check for stack-level pharmacokinetic conflicts, use the interaction checker.
Onset and pharmacokinetic data reflect the published literature for healthy adults at typical doses. Individual variation in absorption, metabolism (CYP genotype), and gut transit can shift onset by ±50%. This page is informational and not medical advice. See our full disclaimer.