CHAMGAP
APPROVEDReviewed and approved by the Chamgap Editorial Team (2026-07-19). The draft was written by AI, the existence of all 3 cited sources was verified at the original page, and the verdict passed blind grading and adversarial audit. Methodology v0.6.
Verdict No. 577 · Search date 2026-07-19 · Methodology v0.6

Oral homeopathic Arnica montana 30C,
does it really help with Reduced bruising, contusions, post-exercise muscle soreness, and swelling?

30-Second Summary
F
Evidence Grade F · 8 · Safety caution
Oral Arnica 30C has repeatedly failed to reduce bruising, soreness, or swelling beyond placebo
What the
research shows
Oral Arnica 30C is rated F. A direct 30C hand-surgery trial found no advantage over placebo for pain, bruising, or swelling, and a 519-runner 30X trial plus a systematic review also failed to reproduce efficacy. A 30C preparation effectively contains no starting-material molecules and lacks an active mechanism. Repeated refutation plus absent mechanism gives F with 8 points.
What the
ads claim
Marketing treats ultra-diluted oral tablets and topical plant extracts as one natural anti-inflammatory effect, although they are different formulations.
*

Useful facts when choosing a product

  • The 30C label means thirty one-to-one-hundred dilutions and effectively leaves no Arnica starting-material molecules.
  • This verdict concerns swallowed 30C tablets; topical creams and gels with measurable extract are separate formulations.
  • Verdict 563 concerns Ignatia 30C, a different source and indication, whereas this file addresses Arnica trauma and exercise symptoms.
  • Direct toxicity may be low, but manufacturing errors, sugar excipients, and delayed effective care remain possible harms.
Gap Measurement · Verdict 577 · F 8
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

The direct 30C hand-surgery trial analyzed 62 patients and found no benefit. The 519-runner 30X study found no soreness or race-time difference. Topical creams and gels contain measurable extract and are a separate question.

02

Why this is classified as F (8)

The direct 30C hand-surgery trial and the 30X running trial were null, and active-molecule plausibility is absent. A small positive signal in a 190-participant tonsillectomy trial of 30C and a borderline surgical meta-analytic signal justify 8 rather than 2 points within F.

Counterpoint. Severe bruising, pain, or swelling can conceal fracture, bleeding disorder, thrombosis, or muscle injury and requires evaluation.

Rejudgment record. New verdict — Applied repeated null direct 30C and related oral high-dilution trials, systematic review, and absent active-molecule plausibility

Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Reduced contusions and bruisingFA direct 30C trial failed to reproduce benefit.
Reduced post-exercise soreness and swellingFLarge 30X and 200C exercise trials were null.
Equivalent effects of oral 30C and topical creamFEvidence for measurable topical extract cannot be attributed to 30C.

Cross-check — Codex and Claude

This verdict was drafted by Codex through literature review and source-existence checks, cross-checked through blind grading and adversarial audit, and settled by reapplying the methodology boundary rules. Cases with split grades were resolved through rejudgment.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Stevinson C et al. 2003Randomized double-blind 6C, 30C, and placebo trial62Academic researchPain, bruising, and swelling after hand surgery30C did not outperform placebo.Direct refutation of 30C
Vickers AJ et al. 1998Randomized double-blind placebo-controlled 30X trial400Academic complementary-medicine researchFive-day soreness and race timeSoreness and race time did not differ.Large related high-dilution refutation
§

Receipt — 3 References

All 3 cited sources were verified for existence at the original page (as of 2026-07-19).

Stevinson C, Devaraj VS, Fountain-Barber A, Hawkins S, Ernst E. Homeopathic arnica for prevention of pain and bruising: randomized placebo-controlled trial in hand surgery. J R Soc Med. 2003;96(2):60-65. PMID: 12562974. PMCID: PMC539394. DOI: 10.1258/jrsm.96.2.60.
checked
Vickers AJ, Fisher P, Smith C, Wyllie SE, Rees R. Homeopathic Arnica 30x is ineffective for muscle soreness after long-distance running. Clin J Pain. 1998;14(3):227-231. PMID: 9758072. DOI: 10.1097/00002508-199809000-00009.
checked
Ernst E, Pittler MH. Efficacy of homeopathic arnica: a systematic review of placebo-controlled clinical trials. Arch Surg. 1998;133(11):1187-1190. PMID: 9820349. DOI: 10.1001/archsurg.133.11.1187.
checked
Draft and rewrite: Codex (AI) · Verification: Codex blind grading and adversarial audit · Final adjudication: Claude
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-07-19 · Corrections: none

Cite this verdict

Oral homeopathic Arnica montana 30C x reduced bruising, contusions, post-exercise soreness, and swelling Evidence Grade F card
[Chamgap] Oral homeopathic Arnica montana 30C x reduced bruising, contusions, post-exercise soreness, and swelling — Evidence Grade F·8. 3 cited sources checked. Source: https://chamgap.com/en/verdicts/general/homeopathic-arnica-montana-30c-bruising-muscle-soreness/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.