Efficacy and safety of oral administration of a product based on hydroxytyrosol as preventive therapy for recurrent vulvo-vaginal candidosis: a prospective observational pilot study

Eur Rev Med Pharmacol Sci. 2020 Jul;24(13):7427-7432. doi: 10.26355/eurrev_202007_21911.


Objective: The aim of the study is to evaluate the efficacy and safety of hydroxytyrosol for the prevention of the vulvar vaginal candida infections recurrence.

Patients and methods: This study is a prospective observational pilot study. Eligible subjects were at least 18 years old, with at least 4 documented episodes of vulvovaginal candidiasis in the last 12 months. Patients were instructed to therapy (2 tabs daily for the first month and then 1 tab daily for 2 other months). Each capsule consists of hydroxytyrosol (HT) and other components: tea tree oil, tabebuia, juglans regia, and copper. Clinical and microbiological assessments took place at baseline and 12 weeks after. The impact on Quality of Life (QoL) was evaluated with the SF-36 and the Patient Global Impression of Improvement (PGI-I) after 3 months of treatment was calculated.

Results: Sixty patients were enrolled in the study. In the last 1 year the mean number of previous infections was 5.83 ± 2.76. Forty-nine patients (83%) did not have candida episodes during 3 months of treatment. A significant reduction in clinical symptoms, vaginal signs, such as pruritus, burning and vulvar erythema (< 0.0001). The SF-36 showed a significant change (55.67±8.43 vs. 84.56±11.56, p < 0.0001) and the total success at PGI-I was reported in 54 patients (90%).

Conclusions: The HT-based product is effective and safe in preventing recurrent candida episodes and improves the quality of life and sexual function of treated women.

Publication types

  • Observational Study

MeSH terms

  • Administration, Oral
  • Adult
  • Antifungal Agents / administration & dosage*
  • Antifungal Agents / adverse effects
  • Candidiasis, Vulvovaginal / diagnosis
  • Candidiasis, Vulvovaginal / drug therapy*
  • Candidiasis, Vulvovaginal / microbiology
  • Copper / administration & dosage*
  • Copper / adverse effects
  • Drug Combinations
  • Female
  • Humans
  • Middle Aged
  • Phenylethyl Alcohol / administration & dosage
  • Phenylethyl Alcohol / adverse effects
  • Phenylethyl Alcohol / analogs & derivatives*
  • Pilot Projects
  • Plant Extracts / administration & dosage*
  • Plant Extracts / adverse effects
  • Prospective Studies
  • Quality of Life
  • Reinfection*
  • Sexual Behavior
  • Time Factors
  • Treatment Outcome


  • Antifungal Agents
  • Drug Combinations
  • Plant Extracts
  • 3,4-dihydroxyphenylethanol
  • Copper
  • Phenylethyl Alcohol