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Topical OTC use. Leave-on and wash-off acne products contain 0.5-2% salicylic acid, applied to affected areas once or twice daily and built up as tolerated; professional peels (20-30%) are applied in-office. There is no oral or systemic dose in this context — it is not ingested (and large-area/high-concentration use can cause systemic salicylate absorption, so follow label limits). This library does not provide an ingestion protocol.

Any time

Leave-on or wash-off acne product (0.5-2% salicylic acid)

Topical cosmetic only. Acne trials used a 5% tea tree oil gel applied to affected areas (typically twice daily). Avoid undiluted (100%) application, which is more irritating and sensitizing. Patch-test first, and use fresh, properly stored product (oxidized oil raises allergy risk). There is no oral or systemic dose — it is not ingested (and tea tree oil is toxic if swallowed). This library does not provide an ingestion protocol.

Any time

5% tea tree oil gel (the trial-tested strength)

• For topical (skin) use only — not for ingestion, not for injection
• Known allergy/sensitivity to salicylates or aspirin
• Do not apply to large body-surface areas at high concentration (risk of systemic salicylate absorption / salicylism)

• Other leave-on actives (retinoids, AHAs, benzoyl peroxide)
• Oral salicylates / anticoagulants (only if extensive high-strength use)

• For topical (skin) use only — NEVER ingest (tea tree oil is toxic if swallowed)
• Known allergy/sensitivity to tea tree oil or other essential oils
• Undiluted application to skin (higher irritation/sensitization risk)

• Other topical actives (benzoyl peroxide, retinoids, acids)