Topical treatment active versus placebo.

Double blind randomized placebo controlled split face intrasubject comparison.

Split face double blind

Fexofenadine 1%

Efficacy was measured per intervention by assessing number of participants with improvement in under eye dark circles and swelling. Criteria used to assess under eye improvement and swelling was by a 5 point scale comparing each week's photographic appearance to the appearance at baseline: 1) fexofenadine right and placebo left, and 2) fexofenadine left and placebo right. The split face comparison was noted in efficacy measured changes in under eye swelling and dark circles relative to baseline. Participants were graded by 2 blinded dermatologists who reviewed photographs of all participants at entry and weekly until end of study plus one week, day 37. Total number of participants: 30. Placebo right and fexofenadine left 15 participants. Placebo left and fexofenadine right 15 participants.

Topical treatment active versus placebo.

Double blind randomized placebo controlled split face intrasubject comparison.

Placebo, fexofenadine

Efficacy was measured per intervention by assessing number of participants with improvement in under eye dark circles and swelling. Criteria used to assess under eye improvement and swelling was by a 5 point scale comparing each week's photographic appearance to the appearance at baseline: 1) fexofenadine right and placebo left, and 2) fexofenadine left and placebo right. The split face comparison was noted in efficacy measured changes in under eye swelling and dark circles relative to baseline. Participants were graded by 2 blinded dermatologists who reviewed photographs of all participants at entry and weekly until end of study plus one week, day 37. Total number of participants: 30. Placebo right and fexofenadine left 15 participants. Placebo left and fexofenadine right 15 participants.

Thirty participants in total; 15 had fexofenadine left and placebo right; 15 had fexofenadine right and placebo left.

Topical treatment active versus placebo

Double blind randomized placebo controlled split face intrasubject comparison.