Boswellic Acid

Evidence: Good
PhytochemicalTriterpene

Useful mainly for adults with knee osteoarthritis pain and stiffness.

Quick decision guide

May help most

adults with knee osteoarthritis pain and stiffness

Common dosing range

100-250 mg/day of standardized boswellic acids (e.g. AKBA-enriched extract)

When to expect effects

Weeks

Watch out for

mild GI upset; product potency varies widely by standardization

What is it

Boswellic acids are the main active triterpenoid compounds in the resin of Boswellia (frankincense) trees, with 11-keto-beta-boswellic acid (KBA) and acetyl-11-keto-beta-boswellic acid (AKBA) considered the most bioactive. They inhibit 5-lipoxygenase and other inflammatory pathways and are used mainly for joint and inflammatory conditions.

Is it worth it for you?

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

Worth considering if

You have knee osteoarthritis pain
You want a plant-based adjunct to standard analgesics
You can commit to several weeks of consistent use

Probably skip if

You expect rapid pain relief
You need it for an inflammatory disease without medical supervision
You can't verify the extract's standardization

Evidence at a glance

GoalEvidenceEffectBest fitTime
osteoarthritis painGoodModest reduction in pain and stiffnessadults with knee osteoarthritisWeeks

Evidence for 1 use

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

osteoarthritis pain

Disease adjunct
Good

Multiple small-to-moderate RCTs and pooled analyses report that standardized Boswellia/boswellic acid extracts reduce osteoarthritis pain and stiffness and improve function versus placebo. Trials are generally short, vary in extract standardization, and some are industry-sponsored, so effect sizes are uncertain. The signal is consistent enough to rate good but not strong.

Effect size: Modest reduction in pain and stiffness
Time to effect: Weeks
Best fit: adults with knee osteoarthritis

Bottom line: A reasonable evidence-based adjunct for knee osteoarthritis, with modest expected benefit.

Evidence is mixed

Benefits are reproducible across small trials but limited by short duration, heterogeneous extracts, and frequent industry funding.

How to take it

Typical dose
100-250 mg/day of standardized boswellic acids
Higher studied dose
Up to ~1 g/day of total Boswellia extract in some trials
Timing
With meals
With food
With food to improve tolerance and absorption
How long to try
Trial 8-12 weeks for osteoarthritis before judging benefit

What to track

  • joint pain
  • joint stiffness
  • physical function/walking
  • use of other pain relievers

Safety

Common side effects

mild nausea, abdominal discomfort, diarrhea

Who should avoid it

  • people on anticoagulants without medical advice
  • those with significant liver disease (data limited)

Pregnancy & breastfeeding

Avoid in pregnancy; traditionally regarded as possibly able to stimulate uterine activity and not adequately studied.

Interactions

anti-inflammatory/immune drugs metabolized by CYP enzymesMinor

In vitro CYP inhibition suggests possible but not well-characterized effects on drug levels

Choosing a product

Look for

  • States % standardization of boswellic acids and ideally AKBA content
  • Identifies the species (commonly Boswellia serrata)

Be skeptical of

  • 'Regrows cartilage' or 'cures arthritis'
  • 'Replaces your arthritis medication'

References by claim

osteoarthritis pain

  • Yu et al., 2020PMC (2020) link
  • Dalmonte et al., 2024PMC (2024) link

Track Boswellic Acid 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.