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Head-to-head evidence comparison — which supplement is right for you?
Salicylic Acid (topical) and Tea Tree Oil (topical) are closely matched across evidence, studies, and safety.
Verdict
Mostly mechanism / observational
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Shared outcomes (1)
Outcomes where both Salicylic Acid (topical) and Tea Tree Oil (topical) have evidence — compare verdict strength side-by-side.
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
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
5% tea tree oil gel (the trial-tested strength)
Throughout
4-12 weeks
4-12 weeks
Throughout
Throughout
8-12 weeks
Weeks
Throughout
Comparison of alpha- and beta-hydroxy acid chemical peels in the treatment of mild to moderately severe facial acne vulgaris.
Dermatol Surg (2008) · Rct · n=20
Split-face, double-blind RCT (n=20) comparing 30% salicylic acid vs 30% glycolic acid peels, six treatments at 2-week intervals
Comparison of chloroxylenol 0.5% plus salicylic acid 2% cream and benzoyl peroxide 5% gel in the treatment of acne vulgaris: a randomized double-blind study.
Drugs Exp Clin Res (2003) · Rct · n=37
12-week double-blind RCT (n=37) comparing a 2% salicylic acid (plus chloroxylenol) cream vs benzoyl peroxide 5% gel twice daily
Comparative study of efficacy and safety of 45% mandelic acid versus 30% salicylic acid peels in mild-to-moderate acne vulgaris.
J Cosmet Dermatol (2020) · Rct · n=50
Randomized trial (n=50) of 30% salicylic acid vs 45% mandelic acid peels, six sessions over 12 weeks for mild-to-moderate acne
A comparative study of tea-tree oil versus benzoylperoxide in the treatment of acne.
Med J Aust (1990) · Rct · n=124
Single-blind RCT in 124 patients comparing 5% tea tree oil gel with 5% benzoyl peroxide lotion for mild-to-moderate acne
The efficacy of 5% topical tea tree oil gel in mild to moderate acne vulgaris: a randomized, double-blind placebo-controlled study.
Indian J Dermatol Venereol Leprol (2007) · Rct · n=60
Randomized double-blind placebo-controlled trial (n=60) of 5% tea tree oil gel vs placebo over 45 days
Tea tree oil gel for mild to moderate acne; a 12 week uncontrolled, open-label phase II pilot study.
Australas J Dermatol (2017) · Pilot · n=18
Open-label, uncontrolled 12-week phase II pilot of a tea tree oil gel and face wash applied twice daily (n=18)
Both Salicylic Acid (topical) and Tea Tree Oil (topical) are closely matched — the best choice depends on your specific health goals.
For clearer skin (acne), Salicylic Acid (topical) has a higher relevance score (75 vs 62).
No known interactions between Salicylic Acid (topical) and Tea Tree Oil (topical) have been documented in our database. However, always consult a healthcare provider before combining supplements.