Pure tea tree oil (melaleuca alternifolia).
Contains: warning: do not ingest. Keep out of reach of children do not apply to broken or irritated skin or areas affected by rashes. Discontinue use and consult your doctor if any adverse reactions occur, including skin sensitivity or irritation, rash, itching, redness or swelling. Avoid contact with eyes, nose, mouth, inner ear or other tender areas. Do not use on children or animals.