RT Journal Article SR Electronic T1 Randomised controlled trial of topical kanuka honey for the treatment of acne JF BMJ Open JO BMJ Open FD British Medical Journal Publishing Group SP e009448 DO 10.1136/bmjopen-2015-009448 VO 6 IS 2 A1 Alex Semprini A1 Irene Braithwaite A1 Andrew Corin A1 Davitt Sheahan A1 Christopher Tofield A1 Colin Helm A1 Barney Montgomery A1 James Fingleton A1 Mark Weatherall A1 Richard Beasley YR 2016 UL http://bmjopen.bmj.com/content/6/2/e009448.abstract AB Objective To investigate the efficacy of Honevo, a topical 90% medical-grade kanuka honey, and 10% glycerine (honey product) as a treatment for facial acne.Design Randomised controlled trial with single blind assessment of primary outcome variable.Setting Outpatient primary care from 3 New Zealand localities.Participants Of 136 participants aged between 16 and 40 years with a diagnosis of acne and baseline Investigator's Global Assessment (IGA) for acne score of ≥2.68, participants were randomised to each treatment arm.Interventions All participants applied Protex, a triclocarban-based antibacterial soap twice daily for 12 weeks. Participants randomised to the honey product treatment arm applied this directly after washing off the antibacterial soap, twice daily for 12 weeks.Outcome measures The primary outcome was ≥2 point decrease in IGA score from baseline at 12 weeks. Secondary outcomes included mean lesion counts and changes in subject-rated acne improvement and severity at weeks 4 and 12, and withdrawals for worsening acne.Results 4/53 (7.6%) participants in the honey product group and 1/53 (1.9%) of participants in the control group had a ≥ 2 improvement in IGA score at week 12, compared with baseline, OR (95% CI) for improvement 4.2 (0.5 to 39.3), p=0.17. There were 15 and 14 participants who withdrew from the honey product group and control group, respectively.Conclusions This randomised controlled trial did not find evidence that addition of medical-grade kanuka honey in combination with 10% glycerine to standard antibacterial soap treatment is more effective than the use of antibacterial soap alone in the treatment of acne.Trial registration number ACTRN12614000003673; Results.