Tea Tree Oil for Acne (Acne Vulgaris)

A natural acne spot-treatment that kills the bacteria behind red, painful pimples. Slower than benzoyl peroxide but with fewer side effects when used at 5%.

Why it works for Acne (Acne Vulgaris)

Helps fight acne bacteria and calm inflammation. It is a plant essential oil (its main active is terpinen-4-ol). In one small trial (Bassett 1990, PMID:2145499), a 5% tea tree oil gel matched 5% benzoyl peroxide for total breakout count at 3 months, with fewer side effects. The proof is limited to small studies. Use it only at a standard 5% strength. Undiluted tea tree oil can trigger strong allergic reactions on skin.

How Tea Tree Oil works

Australian Melaleuca essential oil whose terpinen-4-ol content disrupts bacterial membranes (including C. acnes) and dampens inflammatory neutrophil response.

Evidence

4 citations from our ingredient database. Full citation list on the Tea Tree Oil ingredient page.

journal2022

Najafi-Taher R et al., A topical gel of tea tree oil nanoemulsion containing adapalene versus adapalene marketed gel in patients with acne vulgaris: a randomized clinical trial, Archives of Dermatological Research 2022;314(7):673-679 — RCT showed tea tree oil + adapalene nanoemulsion gel produced significantly better reduction in total, inflammatory and non-inflammatory acne lesions than standard adapalene

journal2021

Zambello A et al. Tea tree oil contact sensitization in children. Contact Dermatitis. 2021;84(2):123-124. doi:10.1111/cod.13699 — Documents allergic contact dermatitis from tea tree oil exposure in pediatric patients identified through patch testing; highlights sensitization risk in children.

journal2017

Malhi HK, Tu J, Riley TV, Kumarasinghe SP, Hammer KA, Tea tree oil gel for mild to moderate acne; a 12 week uncontrolled, open-label phase II pilot study, Australasian Journal of Dermatology 2017;58(3):205-210

review2016

de Groot AC et al. Tea tree oil: contact allergy and chemical composition. Contact Dermatitis. 2016;75(3):129-143. doi:10.1111/cod.12591 — Comprehensive review documenting tea tree oil sensitization rates of 0.1-3.5% in routine patch testing, with nearly 100 published allergic cases since 1991. Key finding: fresh TTO is a weak-to-moderate sensitizer but oxidation significantly increases allergenic potency.

Products with Tea Tree Oil in our catalog

These are the catalog products that list Tea Tree Oil as a tracked ingredient.

COSRX

Low pH Good Morning Gel Cleanser

$9.8 · Cleanser

Sunday Riley

U.F.O. Ultra-Clarifying Acne Treatment Face Oil

$40 · Treatment

COSRX

Master Patch Intensive

$15.4 · Treatment

COSRX

Salicylic Acid Daily Gentle Cleanser

$12 · Cleanser

iUNIK

Tea Tree Relief Serum

$12.32 · Serum

Mediheal

Teatree Trouble Pad

$23.99 · Toner

Full Tea Tree Oil guide →Acne (Acne Vulgaris) overview →