For women

30 capsules



(inc. VAT)
4.7/5 (129 reviews) Read the product reviews

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Special offer: For every day EXTRA Strength 90 and For babies & children 90 - 90 caps for the price of 60
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Gluten free

Gluten free

Dairy free

Dairy free

During pregnancy

During pregnancy

During breastfeeding

During breastfeeding


OptiBac 'For women' is a high-quality oral live cultures supplement specially formulated for women. Proven to reach the vagina alive and suitable for long-term daily use.

for women press

Live bacteria strains & ingredients

  • Lactobacillus rhamnosus GR-1®
  • Lactobacillus reuteri RC-14®
  • Product description

  • How to use

  • Ingredients

  • Help & advice

  • Reviews

  • Product description

    Friendly bacteria expert Farah (Natural Sciences BSc Hons) explains OptiBac 'For women'

    Who is OptiBac ‘For women’ for?

    Food supplement for women of all ages, including teenagers, pregnant women and women over 50. Highly researched friendly bacteria trialled and shown to survive to reach the vagina alive.

    Key benefits

    • Trusted multi-strain ingredients - contains world-renowned Lactobacillus rhamnosus GR-1® and Lactobacillus reuteri RC-14®, the most clinically studied live cultures strains for survival to the vagina.
    • Specially formulated to support a balanced and healthy vaginal environment in women by increasing levels of Lactobacilli naturally present in the vagina.
    • Backed by over 25 scientific studies and 30 years of research.
    • This good bacteria combination has been extensively researched in over 2,500 women around the world.
    • Highest quality standards - rigorously tested and shown to be safe in women.
    • Trust ‘For women’ as the safe and scientifically proven method to balance your natural vaginal flora.
    • 2.3 billion CFU of friendly bacteria per serving, guaranteed until end of expiry.
    • Easy-to-take capsule.
    • Suitable for vegetarian, vegan, dairy-free or gluten-free diets.
    • Suitable for pregnant women.
    • Free from GMOs and soy. No artificial colours, flavours or preservatives.
    • Recommended for daily use.
    • Winner of 2019 Your Healthy Living Award.
    • From the UK’s most trusted & recommended brand of friendly bacteria supplements. As determined in an independent survey of 1000 British women+

    Available in three pack sizes of 14, 30 and 90 capsules.


    Customer feedback collected via independent review platform Trustpilot. See 'Reviews' tab for more customer opinions collected via our own website.


    Customer questions

    All questions answered by friendly bacteria experts Dr Aisling Dwyer MB BCh BAO (Medicine, Surgery and Obstetrics), MSc (Personalised Nutrition) and Dr Kate Stephens PhD (Food and Microbial Sciences) BSc(Hons) Medical Microbiology.

    What are women’s live cultures?

    For most health issues, gender isn’t a consideration in good bacteria research, so you don’t need to worry about this when choosing your supplement. However, there are several friendly bacteria strains that have been researched specifically in people with vaginas, such as Lactobacillus reuteri RC-14® and Lactobacillus rhamnosus GR-1®, which can be found in 'For women'. These have been specifically researched for survival to the vagina. Otherwise, live cultures are not gender-specific and can be taken by anyone who feels they may benefit.

    What makes women’s live cultures good?

    Women’s live cultures are particularly good for the support of the vaginal flora. A healthy vagina typically contains strains of Lactobacilli bacteria which produce lactic acid, hydrogen peroxide and other substances, all of which help to keep the pH balance in the vagina at an optimum pH of 4.5 (slightly acidic).

    How do I choose the best live cultures for women?

    The best women’s live cultures supplements contain strains which have been specifically researched in women, and where the billions count is based on the dosages used in gold standard clinical trials. ‘For women’ contains 2.3 billion live cultures per capsule – the finished product has been used in numerous research studies1,2,3  in which a standard dose of one to two capsules per day was utilised.

    Making a difference

    Thank you for helping us to support women around the world!

    For every pack of OptiBac 'For women' purchased, we make a donation (20p per 14 capsules, 30p per 30 capsules, and £1 per 90 capsules) to the international women's rights charity, Womankind Worldwide.

    Over the last 5 years you have helped us raise a massive £330,000! These funds have helped Womankind Worldwide, in partnership with over 30 women's rights organisations across Africa and Asia, transform the lives of thousands of women suffering abuse and discrimination.

    Our sincere thanks goes out to everyone who recommends, stocks and takes this supplement. Read more about the OptiBac and Womankind Worldwide partnership.


    1. Martinez et al., (2009), ‘Improved treatment of vulvovaginal candidiasis with fluc*****le plus probiotic Lactobacillus rhamnosus GR-1® and Lactobacillus reuteri RC-14®’. Lett. Appl. Microbiol., 48(3): 269-74.
    2. Martinez et al., (2009), ‘Improved cure of bacterial vaginosis with single dose of tin*****le (2g), Lactobacillus rhamnosus GR-1®, and Lactobacillus reuteri RC-14®: a randomized, double-blind, placebo-controlled trial’. Can. J. Microbiol.,55(2):133-8.
    3. Beerepoot et al., (2012), ‘Lactobacilli vs antibiotics to prevent urinary tract infections: a randomized, double-blind, noninferiority trial in postmenopausal women’. Arch. Intern. Med., 172(9):704-12.
  • How to use

    Recommended use

    • For best results take 1 capsule daily. May be increased to 2 capsules per day.
    • One capsule contains minimum of 2.3 billion live Lactobacillus reuteri RC-14® and Lactobacillus rhamnosus GR-1®. Do not exceed recommended daily dosage.
    • Take 1 or 2 capsules daily as desired or as professionally directed. For ongoing use 1 capsule a day may suffice.
    • Take with food, preferably with breakfast.
    • For anyone unable to swallow capsules, the capsule can be opened and the contents sprinkled into cool food/drinks.
    • Take daily for best results.
    • 'For women' can safely be taken alongside other supplements in the OptiBac range.

    Storage instructions

    No refrigeration necessary when stored in a cool, dry place below 25°C.

    Customer questions

    All questions answered by friendly bacteria experts Dr Aisling Dwyer MB BCh BAO (Medicine, Surgery and Obstetrics), MSc (Personalised Nutrition) and Dr Kate Stephens PhD (Food and Microbial Sciences) BSc(Hons) Medical Microbiology.

    How long does it take for women’s live cultures to work?

    Even when taken orally, the strains in ‘For women’ have been proven to reach the vagina alive. Research suggests that they can reach the vaginal tract in 3-4 days and begin to colonise, and they have been shown in clinical trials1 to be present in the vagina after just one week.

    When is the best time to take live cultures for women?

    Even though live cultures produce lactic acid and prefer a slightly acidic environment, getting through the harsh stomach environment can be challenging for these delicate live cultures. Ideally, it’s best to take your good bacteria supplement at mealtimes (specifically breakfast time), as the stomach’s gastric acidity is naturally at pH 4 or above, and the food further helps to buffer the acid, and assist the passage of the live cultures into the gut. However, if you forget to take them with breakfast, just take with another meal or snack.

    How long should I take a women’s live cultures supplement for?

    This really depends on your circumstances and response to the good bacteria. 'For women’ comes in three different sizes, one of which is a seven-day intensive course during which two capsules are taken over seven consecutive days for occasional support; however, most women love the confidence that taking daily vaginal live cultures can provide. OptiBac ‘For women’ is safe and recommended for long-term daily use.

    Are women’s live cultures safe during pregnancy?

    It is perfectly safe to take ‘For women’ during pregnancy; however, pregnant women may like to consider taking our specific pregnancy supplement, ‘For pregnancy’, which contains strains researched specifically in pregnant women.


    Live cultures are not recommended for those with serious medical conditions e.g. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor's care. Keep out of reach and sight of children.

    This is a food supplement and is not intended to prevent, treat or diagnose any medical conditions. Food supplements should not be used as a substitute for a healthy diet and lifestyle. If you are taking any medications or have a serious medical condition, consult a doctor before use. OptiBac supplements will not cause dependency and may be used on an ongoing basis.


    1. Anukam K.C. et al., (2006), ‘Augmentation of antimicrobial met*******ole therapy of bacterial vaginosis with oral probiotic Lactobacillus rhamnosus GR-1 and Lactobacillus reuteri RC-14: randomized, double-blind, placebo controlled trial’. Microbes Infect. 8(6): 1450-4.



    Customer feedback collected via independent review platform Trustpilot. See 'Reviews' tab for more customer opinions collected via our own website.

  • Ingredients


    • Stabilisers: maltodextrin (natural source), microcrystalline cellulose
    • Live cultures: Lactobacillus reuteri RC-14®Lactobacillus rhamnosus GR-1®
    • Vegetarian capsule: hydroxypropyl methylcellulose, anti-caking agent: vegetable magnesium stearate

    Each capsule guarantees 2.3 billion good bacteria.

    Check bottom of pack for Best Before Date.

    Suitable for vegetarian, vegan, dairy free, gluten free, yeast-free or soy free diets. GMO free. Sugar free. Free from artificial flavourings, colourings and preservatives typically found in other food & drinks containing live cultures. No chemicals or parabens.

    This product should not be used as a substitute for a varied diet.

    Customer questions

    All questions answered by friendly bacteria experts Dr Aisling Dwyer MB BCh BAO (Medicine, Surgery and Obstetrics), MSc (Personalised Nutrition) and Dr Kate Stephens PhD (Food and Microbial Sciences) BSc(Hons) Medical Microbiology.

    Is ‘For women’ dairy free and vegan?

    Yes, ’For women’ is a dairy-free and vegan supplement. This means it’s one of the best live cultures for women with lactose intolerance or a milk allergy.

    Following the taxonomic updates issued by a global team of scientists and published in April 2020, which look more closely at the Lactobacillus genus, a reclassification has been advised for both the L. rhamnosus and L. reuteri species. The active ingredients in 'For women' may therefore also now be referred to as Limosilactobacillus reuteri RC-14® and Lacticaseibacillus rhamnosus GR-1®.



    Customer feedback collected via independent review platform Trustpilot. See 'Reviews' tab for more customer opinions collected via our own website.

  • Help & advice

    Talk to our experts

    If you have a specific question or need some advice on which product to choose please contact our Nutrition Team on +44 (0) 1264 318 881 or click on the link below for our contact form.

    Need help choosing a product?
  • Reviews

    Customer reviews

    • They work great!

      Virginia Chavez - 13th January 2021

    • Absolutely amazing probiotics for vaginal health. A friend of mine recommended after trying these. ZERO problems since taking these every day. Thank you Optibac!

      Fran - 7th January 2021

    • Rather concerned about safety as box & container sold unsealed. Is this normal practice?

      rikki clapham - 22nd December 2020

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