Treatment of dandruff with 5% tea tree oil shampoo

Satchell AC, Saurajen A, Bell C, Barnetson RS
Journal of the American Academy of Dermatology, 2002


ABSTRACT:

BACKGROUND:
Dandruff appears to be related to the yeast Pityrosporum ovale. Tea tree oil has antifungal properties with activity against P ovale and may be useful in the treatment of dandruff.

OBJECTIVE:
We conducted a randomized, single-blind, parallel-group study to investigate the efficacy and tolerability of 5% tea tree oil and placebo in patients with mild to moderate dandruff.

METHODS:
One hundred twenty-six male and female patients, aged 14 years and older, were randomly assigned to receive either 5% tea tree oil shampoo or placebo, which was used daily for 4 weeks. The dandruff was scored on a quadrant-area-severity scale and by patient self-assessment scores of scaliness, itchiness, and greasiness.

RESULTS:
The 5% tea tree oil shampoo group showed a 41% improvement in the quadrant-area-severity score compared with 11% in the placebo group (P <.001). Statistically significant improvements were also observed in the total area of involvement score, the total severity score, and the itchiness and greasiness components of the patients’ self-assessments. The scaliness component of patient self-assessment improved but was not statistically significant. There were no adverse effects.

CONCLUSION:
Five percent tea tree oil appears to effective and well tolerated in the treatment of dandruff.

CITATION:

Satchell AC, Saurajen A, Bell C, et al. Treatment of dandruff with 5% tea tree oil shampoo. J Am Acad Dermatol. 2002;47(6):852-855.


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