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Head-to-head evidence comparison — which supplement is right for you?
Boswellia wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
7 of 7 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
300-500mg standardized extract (30-40% AKBA), 2-3x daily
With meals containing fat
Standardized extract (30-40% AKBA or 65% boswellic acids)
Prescription topical: a pea-sized amount of 0.025%-0.1% cream or gel applied to clean, dry skin once nightly. Start low-strength and every-other-night to build tolerance. A prescription drug used under clinician direction — not a supplement regimen.
before-bed
Topical cream or gel, 0.025%-0.1% (prescription)
4-8 weeks
4-8 weeks
2-4 weeks
12-24 weeks
12-24 weeks
Months
8-12 weeks
Comparative Effectiveness of Nutritional Supplements in the Treatment of Knee Osteoarthritis: A Network Meta-Analysis
Nutrients (2025) · Meta analysis · n=4599
Bayesian rankings indicated Boswellia had the highest probability of being most effective for pain and stiffness, with krill oil and curcumin showing potential for function improvement.
Oral herbal medicines marketed in Brazil for the treatment of osteoarthritis: A systematic review and meta-analysis
Phytotherapy research : PTR (2017) · Meta analysis · n=1741
Z. officinale showed improvement of pain over placebo.
Oral herbal therapies for treating osteoarthritis
The Cochrane database of systematic reviews (2014) · Meta analysis · n=5980
Seventeen studies of confirmatory design (sample and effect sizes pre-specified) were mostly at moderate risk of bias.
Topical tretinoin improves photoaged skin. A double-blind vehicle-controlled study.
JAMA (1988) · Rct
Randomized, double-blind, vehicle-controlled trial of topical tretinoin for photoaged forearm and facial skin
Tretinoin emollient cream: a new therapy for photodamaged skin.
J Am Acad Dermatol (1992) · Rct
Multicenter double-blind vehicle-controlled trial of tretinoin emollient cream for photodamaged skin
Long-term treatment of photoaged human skin with topical retinoic acid improves epidermal cell atypia and thickens the collagen band in papillary dermis.
J Am Acad Dermatol (2005) · Open label
Long-term topical retinoic acid on photoaged human skin assessed histologically
Based on multiple meta-analyses showing pain reduction in osteoarthritis. Effects may vary significantly by extract standardization (AKBA content) and bioavailability enhancement. Studies primarily used 30-40% AKBA extracts.
AI-estimated from published studies. Interpret as directional guidance.
Boswellia has a higher evidence score (7.5/10 vs 8/10) and wins in 2 of 3 categories.
No known interactions between Boswellia and Tretinoin (Retin-A) have been documented in our database. However, always consult a healthcare provider before combining supplements.