Microbes that gentian violet is effective (and ineffective) against

IMPORTANT NOTE 13 JULY 2019: Gentian violet has been removed from our treatment suite due to a health warning.

Please read and do not use gentian violet unless under the direction of a health professional.

If you are fighting off a vaginal microbe, it pays to know what will and won’t be affected – or as affected – by gentian violet. You can also use gentian violet to help deduce which microbes you have, since if your symptoms do not improve and resolve after using gentian violet, you can assume your condition is not being caused by a susceptible bacteria.

Then, you can move on to other treatments. If you are treating bacterial vaginosis and gentian violet is not effective against your symptoms, then you should move on to other options laid out in Killing BV.

Gentian violet is:

  • Very effective against yeasts
  • Highly effective against gram-positive bacteria
  • Very effective against Staphylococcus species
  • Very effective against Streptococcus species
  • Moderately effective against gram-negative bacteria
  • Moderately effective against Mycobacterium

Gentian violet is very effective against gram-positive microbes and yeasts, including:

Gentian violet is less effective on gram-negative bacteria, including:

  • Bacteroides spp. (anaerobic gram-negative)
  • Bacteroides fragilis (anaerobic gram-negative)
  • Bacteroides vulgatus (anaerobic gram-negative)
  • Enterobacter spp. (aerobic gram-negative)
  • Escherichia coli (aerobic gram-negative)
  • Fusobacteria (anaerobic gram-negative)
  • Klebsiella spp. (aerobic gram-negative)
  • Porphyromonas spp. (anaerobic gram-negative)
  • Prevotella spp. (anaerobic gram-negative)
  • Prevotella bivia (anaerobic gram-negative)
  • Prevotella disiens (anaerobic gram-negative)
  • Prevotella intermedia (anaerobic gram-negative)
  • Porphyromonas asaccharolytica (anaerobic gram-negative)
  • Pseudomonas spp. (aerobic gram-negative)
  • Serratia spp. (aerobic gram-negative)
  • Proteus mirabilis (facultatively anaerobic, gram-negative)
  • Chlamydia trachomatis (aerobic gram-negative)
  • Trichomonas vaginalis (parasitic protozoa)
  • Mycobacterium (including tuberculosis)

Jessica Lloyd - Vulvovaginal Specialist Naturopathic Practitioner, BHSc(N)

Jessica is a degree-qualified naturopath (BHSc) specialising in vulvovaginal health and disease, based in Melbourne, Australia.

Jessica is the owner and lead naturopath of My Vagina, and is a member of the:

  • International Society for the Study of Vulvovaginal Disease (ISSVD)
  • International Society for the Study of Women's Sexual Health (ISSWSH)
  • National Vulvodynia Association (NVA) Australia
  • New Zealand Vulvovaginal Society (ANZVS)
  • Australian Traditional Medicine Society (ATMS)