Clinical studies

Break the Vicious BV Recurrence Cycle with GYNALAC

GYNALAC Restores Lactobacilli Colony Count*

“Lactic acid gel alone or combined with metronidazole, is better than metronidazole alone in promoting Lactobacilli colonization”

*A multicenter, open-labeled, controlled, randomized, three-arm comparative study on 90 women, aged 18 years or over with clinically and microbiologically proven Bacterial Vaginosis. The primary endpoint was to assess the efficacy and tolerability of lactic acid when given as an adjunct to metronidazole in the treatment of Bacterial Vaginosis.  View Clinical Study.

GYNALAC Reduces Signs of Bacterial Vaginosis as determined by the Whiff Test

“Lactic acid gel is safe and as efficacious as metronidazole in the treatment of Bacterial Vaginosis… Proportion of whiff test positive patients were significantly lower in the combination arm compared to those in the metronidazole arm (pday8=0.0212, pday14=0.0410)”

GYNALAC Reduces Recurrence of Foul-Smelling Vaginal Discharge* 

“Lactic acid alone was found to be more effective than Metronidazole in reducing recurrence of foul-smelling vaginal discharge… There was less recurrence of foul-smelling vaginal discharge in the combination of lactic acid gel and metronidazole arm”

GYNALAC Significantly Reduces Clue Cells (Gram Stain) Positive Patients

  • Only 3 days after the first administration of treatment, a significant drop in the number of clue cells positive patients was observed (p<0.001).
  • After a week of treatment, only 3 % in the lactic acid group, 4 % in the metronidazole group, and 0% from the combination group were positive of clue cells.

“Lactic acid gel was as quick and efficacious as metronidazole in reducing clue-cell positive patients…”

Intermittent treatment with GYNALAC Restores Vaginal Flora and Reduces Recurrences*

“In a 6 month double-blind clinical trial, significant beneficial clinical effects (p<0.001) of lactic acid gel compared to placebo gel were found in women with recurrent BV… Number of women who attained a normal vaginal microflora and also were objectively improved was significantly higher in the lactic acid gel group."

*42 women seriously affected by recurrent BV were initially given lactic acid gel to be inserted into the vagina for 7 consecutive days.  Thereafter they entered into a double blind clinical trials and were treated prophylactically 3 days monthly for 6 months with either lactic acid gel or placebo gel. View Clinical Study.

Medical Professionals: GYNALAC – An antibiotic-free approach to both treat and prevent Bacterial Vaginosis. Click here to learn more!


Medical Risks: Bacterial Vaginosis is serious and more than just a minor inconvenience. Click here to learn more!


Antibiotics & Lactobacillus: Click here to learn more about the Implications of Using Antibiotics for Bacterial Vaginosis Treatment and Prophylaxis.


Downloads & Samples: Download information or request samples of GYNALAC® for your patients.