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Herb

Cayenne (Capsaicin)

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Cayenne (Capsaicin). Capsicum for topical pain and metabolic support.

How it works. TRPV1 desensitization depletes substance P.

What the research supports. 1 graded claims. Strongest: Reduces neuropathic pain (moderate).

How much to take. Typical dose: 0.025–0.075% topical.

Side effects and interactions. 1 medication interaction listed. No serious side effects listed at normal doses.

Stacking. Pairs well with A high-quality multivitamin, Omega-3 (EPA/DHA).

Common forms. Available as Standardized extract capsule, Liquid tincture (alcohol or glycerin), Powdered whole herb, Traditional decoction or tea.

Key studies. 8 studies cited. The strongest are listed with links to PubMed.

Community. Experiences from people who have tried Cayenne (Capsaicin). Anecdotes are not medical advice.

Cayenne (Capsaicin). Capsicum for topical pain and metabolic support.

Key compound: capsaicinC18H27NO3 · 305.4 g/mol

What it is

Capsicum for topical pain and metabolic support.

Food sources

Whole dried plant material (root, leaf, flower, or aerial parts depending on the species)Standardized hydroethanolic or aqueous extract (capsule, tincture, or tea)Powdered traditional preparation used in Ayurvedic, TCM, or Western herbal practice

How it works

TRPV1 desensitization depletes substance P.

Pathways

  • TRPV1 desensitization depletes substance P

Effects

  • ↓neuropathic pain decreases

What the research supports

Reduces neuropathic painmoderate

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Typical dose
0.025–0.075% topical
TimingConsistent daily timing recommended; split larger doses if GI tolerance is a concern.
With foodEither with or without food.
Best formMost evidence is based on the standardized extract capsule form.
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Side effects & interactions

Common side effects

  • Burning
  • Skin redness

Medication interactions

Prescription medications (general)minor

Always disclose Cayenne (Capsaicin) use to your prescriber — additive, antagonistic, or pharmacokinetic interactions are possible.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • A high-quality multivitaminCovers micronutrient cofactors that support most supplement pathways.
  • Omega-3 (EPA/DHA)Foundational anti-inflammatory support that complements most regimens.

Common forms

  • Standardized extract capsule
  • Liquid tincture (alcohol or glycerin)
  • Powdered whole herb
  • Traditional decoction or tea

Key studies

8 studies cited in total.

Capsaicin for neuropathic pain ↗
Meta-analysis · Cochrane · 2017

High-dose capsaicin patches effective for postherpetic neuralgia.

PubMed: Cayenne (Capsaicin) — Reduces neuropathic pain ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Cayenne (Capsaicin) and "Reduces neuropathic pain". Filter by RCT, meta-analysis, or year on the results page.

PubMed: Cayenne (Capsaicin) — randomized controlled trial ↗
Systematic review · PubMed (NLM) · 2026

Opens current human and preclinical literature matching Cayenne (Capsaicin) and "randomized controlled trial". Filter by RCT, meta-analysis, or year on the results page.

Discussion

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