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.
Products with Tea Tree Oil in our catalog
These are the catalog products that list Tea Tree Oil as a tracked ingredient.