Evidence-based·Last reviewed May 30, 2026·How we grade evidence

Fo-Ti

BotanicalBest with a meal

Useful mainly for traditional tonic use; no condition has reliable human trial support.

Quick decision guide

May help most

Traditional tonic use; no condition has reliable human trial support

Common dosing range

Varies by preparation; follow label

When to expect effects

Not established

Watch out for

Documented cases of liver injury (hepatotoxicity)

What is it

Fo-Ti is a plant-derived ingredient sold as a dietary supplement and used in traditional herbal use. Found on roughly 906 U.S. supplement labels.

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Worth considering if…

You are specifically following a traditional Chinese herbal protocol
You accept that benefits are unproven and choose a tested-for-purity product

Probably skip if…

You want an evidence-backed effect on hair, aging, or cholesterol
You have any liver condition or take hepatotoxic drugs
You are pregnant or breastfeeding

Evidence at a glance

traditional tonic use

Mixed Evidence
Effect
Unquantified
Best fit
People following traditional herbal practice who accept unproven benefit
Time
Not established

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

traditional tonic use

Mechanism only
Mixed Evidence

Fo-Ti has a long history in traditional Chinese herbalism for premature graying, aging, and vitality, but these uses rest on tradition and preclinical chemistry rather than controlled human trials. Constituent content varies substantially between products, and no specific clinical outcome has been reliably demonstrated.

Effect size
Unquantified
Time to effect
Not established
Best fit
People following traditional herbal practice who accept unproven benefit

Bottom line: There is no dependable human evidence that Fo-Ti delivers any specific health benefit.

SourceHan et al., 2015 — PMC

How it works

Fo-Ti contains a mixture of plant compounds, and the exact mechanism behind any effects depends on the specific preparation, the part of the plant used, and how it is extracted. Concentrations of active constituents can vary substantially between products. Most botanical effects are studied as a whole-plant or extract effect rather than tied to a single isolated molecule. Without strong human trial data, claims about how Fo-Ti works should be treated cautiously.

How to take it

1. Typical dose
Follow product label; research and label doses vary widely by preparation
2. Timing
Anytime, commonly with a meal
3. With food
With food to reduce stomach upset
4. How long to try
No established trial duration; avoid prolonged high-dose use given liver concerns

What to track

Any signs of liver trouble (dark urine, jaundice, right-upper abdominal pain)
Digestive tolerance

3 commercial forms

Compare the main delivery options and what they’re best suited for.

Whole herb powder

Dried, ground plant material in capsules or loose form.

Contains the full spectrum of plant compounds; potency varies by source.

Standardized extract

Often more concentrated than whole-herb powder and used in clinical research.

Concentrated and standardized to a marker compound for more consistent potency.

Liquid tincture

Easy to adjust dose by drops.

Alcohol or glycerin extraction; absorbed quickly when taken sublingually.

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

Mild digestive upsetLoose stoolsAllergic reactions in sensitive people

Serious risks

  • Hepatotoxicity (documented liver injury cases)

Who should avoid it

  • Pregnant or breastfeeding women
  • People with liver disease or on hepatotoxic medications
  • Anyone scheduled for surgery

Pregnancy & breastfeeding

Avoid in pregnancy and breastfeeding because safety data are lacking.

Interactions

Hepatotoxic drugsModerate

Reported liver injury cases raise concern for additive liver stress

AnticoagulantsMinor

Botanicals may affect clotting; not well characterized

Choosing a product

What to look for on the label — and what to be skeptical of.

Look for…

Identity and contaminant testing
Clear species (Polygonum/Fallopia multiflora) and preparation stated

Be skeptical of…

Reverses gray hair
Anti-aging or longevity guarantees

Frequently asked questions

What is Fo-Ti used for?⌄

Fo-Ti is used traditionally for various supportive purposes. Human evidence for specific health claims is generally limited, so it is best treated as a complementary option rather than a treatment.

Is Fo-Ti safe?⌄

Fo-Ti is generally well tolerated at typical doses, but quality varies between products. People who are pregnant, breastfeeding, taking prescription medications, or managing a medical condition should check with a healthcare provider first.

How long does it take to work?⌄

Effects of botanical supplements often take several weeks of consistent use, if they appear at all. Reassess after 8-12 weeks of regular use.

References by claim

traditional tonic use

Han et al., 2015 — PMC (2015) link

Track Fo-Ti with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

Coming to App Store
Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.