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

Ligustrum Fruit

Botanical

Useful mainly for no established standalone human use; traditional tonic and preclinical interest.

Quick decision guide

May help most

no established standalone human use; traditional tonic and preclinical interest

Common dosing range

Traditionally ~6-12 g/day dried fruit in decoction; no validated supplement dose

When to expect effects

Not established

Watch out for

Human efficacy and safety are not established; usually used within multi-herb formulas

What is it

Ligustrum fruit is the dried fruit of Ligustrum lucidum (glossy privet), known in Traditional Chinese Medicine as Nu Zhen Zi and used as a kidney/liver 'tonic'. Its main studied constituents are oleanolic acid and the iridoid glycoside specnuezhenide. Evidence is almost entirely preclinical, with no robust human trials of the isolated herb.

Is it worth it for you?

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

Worth considering if…

You use it within a traditional formula under a qualified practitioner and accept weak evidence

Probably skip if…

You want proven immune, bone, or liver benefits in humans
You want established safety/dosing
You expect modern clinical support

Evidence at a glance

immune modulation (preclinical)

Mixed Evidence
Effect
Not quantified in humans
Best fit
not established in humans
Time
Not established

Evidence for 1 use

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

immune modulation (preclinical)

Mechanism only
Mixed Evidence

Ligustrum lucidum extracts show immunomodulatory, antioxidant, and bone-supportive activity in laboratory and animal studies, attributed to oleanolic acid and specnuezhenide. These effects have not been confirmed in controlled human trials of the isolated herb, so benefit in people is unproven.

Effect size
Not quantified in humans
Time to effect
Not established
Best fit
not established in humans

Bottom line: Activity is limited to lab and animal models; there is no reliable human evidence for the herb alone.

SourceChe et al., 2015 — PubMed

How to take it

1. Typical dose
Traditional decoction ~6-12 g/day dried fruit; no validated extract dose
2. Timing
Not established
3. With food
Typically with food
4. How long to try
Not established

What to track

Tolerability/GI comfort
Any adverse effects

Safety

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

Common side effects

mild gastrointestinal upset

Who should avoid it

  • pregnant or breastfeeding people
  • anyone wanting an evidence-based option (human use is not supported)

Pregnancy & breastfeeding

No adequate human safety data; avoid in pregnancy and breastfeeding.

Choosing a product

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

Look for…

Correct species (Ligustrum lucidum, not ornamental privet leaf)
Identified plant part (fruit) and extraction ratio
Contaminant testing

Be skeptical of…

Boosts the immune system
Reverses aging
Treats liver or kidney disease

References by claim

immune modulation (preclinical)

Che et al., 2015 — PubMed (2015) link

Track Ligustrum Fruit with Pilora

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

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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.