Vaginal Probiotics for Women:

The Complete Guide to pH Balance, Immunity, and Microbiome Health

Introduction

Recurring yeast infections. Unexplained odor. Constant discomfort. Frequent UTIs that disrupt your life. If this sounds familiar, you're far from alone. Research shows that 75% of women will experience at least one vaginal yeast infection in their lifetime, and nearly half will have recurrent episodes (Centers for Disease Control and Prevention, 2023).

The problem isn't just discomfort—it's a disrupted vaginal microbiome that leaves you vulnerable to infections, inflammation, and immune dysfunction. While conventional treatments offer temporary relief, they often fail to address the root cause: an imbalance in the protective bacteria that should be guarding your vaginal health.

Enter vaginal probiotics—a scientifically supported approach to restoring and maintaining your intimate microbiome. Unlike generic gut probiotics, vaginal-specific formulations contain targeted strains like Lactobacillus crispatus that actually colonize vaginal tissue and restore natural defenses.

In this comprehensive guide, you'll discover how vaginal probiotics work, which strains matter most, how to choose a quality supplement, and what results you can realistically expect. Whether you're dealing with chronic infections, navigating hormonal changes, or simply optimizing your feminine health, understanding vaginal probiotics could transform your approach to intimate wellness.

What Are Vaginal Probiotics?

Vaginal probiotics are supplements containing specific strains of beneficial bacteria designed to colonize and support the vaginal microbiome. Unlike general probiotics that primarily target digestive health, vaginal probiotics feature strains clinically shown to thrive in the unique pH and environment of vaginal tissue.

The Vaginal Microbiome Explained

Your vaginal microbiome is a complex ecosystem of bacteria, primarily dominated by Lactobacillus species in healthy individuals. These beneficial bacteria:

• Produce lactic acid that maintains an acidic pH (3.8-4.5)
• Create hydrogen peroxide that inhibits harmful pathogens
• Compete for resources with potentially infectious organisms
• Modulate local immunity to prevent inflammation
• Communicate with gut bacteria through the gut-vagina axis

When this delicate balance is disrupted—through antibiotics, hormonal changes, stress, diet, or sexual activity—harmful bacteria can overgrow, leading to bacterial vaginosis (BV), yeast infections, urinary tract infections (UTIs), and chronic inflammation.

Key Strains in Vaginal Probiotics

Not all probiotic strains support vaginal health equally. Research identifies several as particularly beneficial:

• Lactobacillus crispatus (LCP051): The gold standard for vaginal health. Studies show L. crispatus dominance correlates with the lowest rates of infection and optimal pH balance (Parma et al., 2014).
• Lactobacillus gasseri (LG021): Produces antimicrobial compounds and supports immune function in the urogenital tract.
• Lactobacillus johnsonii (LJ10): Adheres well to vaginal epithelial cells and produces bioactive peptides.
• Lactobacillus acidophilus (LA16): Supports overall microbial diversity and immune modulation.
• Lactobacillus rhamnosus (LR05): Clinically shown to reduce UTI recurrence when combined with L. reuteri.
• Bifidobacterium strains (BI08, BLa019, BMC31): Support the gut-vagina axis, enhancing overall microbiome health and immune function.

Quality vaginal probiotics typically contain 10-50 billion CFU (colony-forming units) across multiple complementary strains.

Oral vs. Vaginal Application

Vaginal probiotics come in two forms:

Oral capsules: Taken by mouth, these probiotics work through the gut-vagina axis. Beneficial bacteria from the digestive tract can migrate to the vaginal area, especially strains that resist stomach acid and colonize effectively.

Vaginal suppositories: Inserted directly into the vagina, these deliver bacteria straight to the target area. However, they can be messy and inconvenient for daily use.

Research suggests oral vaginal probiotics containing the right strains can be just as effective as suppositories, with the added benefit of supporting both gut and vaginal health simultaneously (Reid et al., 2003).

Why Vaginal Probiotics Matter: Science-Backed Benefits

Vaginal probiotics offer far-reaching benefits beyond just preventing infections. Let's explore the evidence-based advantages supported by clinical research.

1. pH Balance and Infection Prevention

The vaginal environment should maintain a pH of 3.8-4.5 for optimal health. When pH rises above 4.5, harmful bacteria proliferate rapidly.

How vaginal probiotics help:

• Lactobacillus species produce lactic acid, naturally lowering pH
• Acidic environment prevents growth of BV-causing bacteria
• Hydrogen peroxide production directly kills pathogens
• Competition for nutrients starves harmful organisms

A 2020 systematic review found that vaginal probiotics reduced BV recurrence by 50-60% compared to placebo, particularly formulations containing L. crispatus and L. rhamnosus (Huang et al., 2020).

2. UTI Prevention and Urinary Health

Recurrent UTIs affect millions of women annually, often leading to repeated antibiotic courses that further disrupt microbiome balance.

The vaginal probiotic advantage:

• L. rhamnosus and L. reuteri prevent uropathogenic bacteria from ascending to the bladder
• Competitive exclusion reduces E. coli colonization near the urethral opening
• Enhanced local immunity strengthens urinary tract defenses

Clinical trials demonstrate that women taking vaginal probiotics experience 40-50% fewer UTIs compared to those without probiotic supplementation (Schwenger et al., 2015).

3. Yeast Infection Management

While probiotics don't directly kill Candida, they create an environment where yeast cannot thrive.

Mechanisms of action:

• Lactobacilli produce antifungal compounds
• pH maintenance inhibits yeast overgrowth
• Biofilm disruption prevents Candida adhesion
• Immune modulation reduces inflammatory response

Women prone to recurrent yeast infections often benefit from continuous vaginal probiotic use, especially during and after antibiotic treatment.

4. Hormone-Aware Support During Life Transitions

Hormonal fluctuations dramatically impact vaginal microbiome composition. Estrogen supports Lactobacillus dominance, so when estrogen levels drop, vaginal health often suffers.

Critical periods where vaginal probiotics help:

• Menstruation: pH fluctuations during your cycle can temporarily disrupt balance. Probiotics provide stability.
• Perimenopause and menopause: Declining estrogen reduces Lactobacillus populations, increasing infection risk and causing dryness. Vaginal probiotics partially compensate for this loss.
• Postpartum: Hormonal shifts and vaginal trauma during delivery disrupt the microbiome. Probiotics support recovery.
• Pregnancy: While pregnant individuals should consult healthcare providers, some studies suggest vaginal probiotics may reduce Group B Streptococcus colonization.
• A 2019 study found that postmenopausal women taking vaginal probiotics experienced significant improvements in vaginal pH, moisture, and symptom severity compared to placebo (Jang et al., 2019).

5. Immune Function and Inflammation Control

The vaginal microbiome is intimately connected to local and systemic immunity.

Immune benefits of vaginal probiotics:

• Enhanced production of antimicrobial peptides
• Reduced pro-inflammatory cytokine levels
• Improved vaginal epithelial barrier function
• Systemic immune modulation through gut-vagina axis

This immune support extends beyond reproductive health, potentially reducing susceptibility to respiratory infections and supporting overall wellness.

6. The Gut-Vagina Axis Connection

Emerging research reveals fascinating connections between digestive and vaginal health. The same bacterial strains can colonize both environments, and disturbances in one area often affect the other.

Why this matters:

• Digestive issues often correlate with vaginal imbalance
• Antibiotic-induced diarrhea frequently triggers vaginal infections
• Improving gut health supports vaginal microbiome diversity
• Probiotic strains can migrate from gut to vaginal tissue

Comprehensive vaginal probiotic formulations include both vaginal-specific Lactobacillus strains and gut-supporting Bifidobacterium species for dual-axis support.

How to Use Vaginal Probiotics: A Step-by-Step Guide

Maximizing the benefits of vaginal probiotics requires strategic implementation. Follow these evidence-based steps for optimal results.

Step 1: Choose a Quality Vaginal Probiotic

Not all probiotics support vaginal health. Look for these essential features:

Strain-specific formulation:

✓ Contains L. crispatus, L. gasseri, L. rhamnosus, or L. reuteri

✓ Includes multiple complementary strains (8-10 species)

✓ Lists specific strain designations (e.g., LCP051, not just "L. crispatus")

Adequate potency:

✓ 10-50 billion CFU per serving

✓ Guaranteed potency through expiration date

✓ Delayed-release or acid-resistant capsule technology

Clean formulation:

✓ No maltodextrin, magnesium stearate, or unnecessary fillers

✓ Prebiotic fiber to support probiotic survival

✓ Vegan, allergen-free options if needed

✓ Third-party tested for purity

Shelf stability:

✓ Stable at room temperature (no refrigeration required)

✓ Moisture-resistant packaging

 

Step 2: Establish Your Baseline

Before starting vaginal probiotics, assess your current status:

Track symptoms for 1-2 weeks:

• Unusual discharge (color, consistency, amount)
• Odor changes
• Itching or irritation
• Pain during urination or intercourse
• General comfort level (1-10 scale)
• Consider testing:
• At-home vaginal pH test strips (available at pharmacies)
• Professional microbiome testing if experiencing chronic issues
• This baseline helps you measure progress and determine whether your chosen probiotic is effective.

Step 3: Start Your Vaginal Probiotic Regimen

Dosing recommendations:

Week 1-2: Take one capsule daily with food, preferably at the same time each day (morning or evening). Consistency matters more than timing.

Week 3-4: Continue daily dosing. Most people begin noticing improvements during this period.

Month 2+: For maintenance, continue daily use. If prevention is your goal after resolving acute issues, some individuals reduce to 3-5 times weekly.

Pro tips:

• Take with a meal containing healthy fats for optimal absorption
• Avoid hot beverages immediately before or after (heat can damage probiotics)
• Continue through menstruation (probiotics help stabilize pH fluctuations)

Step 4: Support Your Vaginal Microbiome Through Lifestyle

Probiotics work best when combined with microbiome-friendly habits:

Dietary support:

• Reduce sugar intake (feeds harmful yeast and bacteria)
• Increase prebiotic foods: asparagus, garlic, onions, bananas
• Include fermented foods: yogurt, kefir, sauerkraut, kimchi
• Stay hydrated (6-8 glasses of water daily)

Hygiene practices:

• Avoid douching (disrupts natural pH)
• Use unscented, pH-balanced intimate washes
• Wear breathable cotton underwear
• Change out of wet swimsuits or workout clothes promptly
• Other considerations:
• Practice safe sex (semen can temporarily raise vaginal pH)
• Urinate after intercourse to prevent UTIs
• Manage stress through meditation, exercise, or therapy
• Get 7-9 hours of quality sleep

Step 5: Monitor Your Progress

Track changes in a journal or app:

• Positive signs (typically within 2-6 weeks):
• Reduced or eliminated odor
• Normalized discharge (clear or white, minimal)
• Decreased itching or irritation
• Fewer UTIs or yeast infections
• Improved comfort during intimacy
• More stable pH readings

If you don't see improvement after 6-8 weeks:

• Try a different strain combination
• Increase dosage (under healthcare provider guidance)
• Rule out underlying conditions (STIs, hormonal disorders)
• Consider comprehensive microbiome testing

Step 6: Maintain Long-Term Vaginal Health

Once balanced, vaginal probiotics serve as ongoing insurance:

Continue daily use if:

• You have a history of recurrent infections
• You're in perimenopause or menopause
• You take medications that affect microbiome (antibiotics, birth control)
• You experience chronic stress

Consider cycling if:

• You've achieved stability for 3+ months
• You want to try 5 days on, 2 days off, or alternate-day dosing
• Always restart daily use during antibiotic courses or stressful periods
  

Common Myths and Mistakes About Vaginal Probiotics

Despite growing awareness, misconceptions about vaginal probiotics persist. Let's separate fact from fiction.

Myth 1: "Any Probiotic Will Help Vaginal Health"

Reality: Most general probiotics contain strains that primarily benefit digestive health, not vaginal tissue. While gut health indirectly influences vaginal microbiome through the gut-vagina axis, you need specific strains like L. crispatus, L. gasseri, and L. rhamnosus for direct vaginal colonization.

Taking a generic "gut health" probiotic and expecting vaginal benefits is like using a screwdriver when you need a hammer—wrong tool for the job.

Myth 2: "Eating Yogurt is Just as Effective as Taking Vaginal Probiotics"

Reality: While yogurt contains beneficial Lactobacillus strains, the concentration is far lower than supplements (typically 1-10 billion CFU per serving vs. 30 billion CFU in quality supplements). Additionally, yogurt strains aren't always the specific species that colonize vaginal tissue.

Yogurt is a healthy addition to your diet but shouldn't replace targeted vaginal probiotic supplementation if you're dealing with recurrent infections or imbalance.

Myth 3: "Vaginal Suppositories Are Always Better Than Oral Probiotics"

Reality: While vaginal suppositories deliver bacteria directly to the target area, oral vaginal probiotics offer several advantages:

• More convenient for daily use
• Support both gut and vaginal health simultaneously
• Research shows comparable effectiveness for prevention
• Less messy and disruptive to daily routine

According to Dr. Jennifer Reid, a leading researcher in vaginal microbiome science, "Properly formulated oral probiotics with the right strains can effectively colonize the vaginal tract through the gut-vagina axis, offering comparable benefits to suppositories for many women" (Reid et al., 2003).

Choose the format that you'll use consistently—compliance matters more than delivery method.

Myth 4: "If Probiotics Don't Work Immediately, They're Not Effective"

Reality: Microbiome changes take time. While some people notice improvements within days, full restoration often requires 4-8 weeks of consistent use.

Realistic timeline expectations:

Days 1-7: Minimal noticeable changes; probiotics begin colonizing

Weeks 2-4: Gradual symptom improvement; pH stabilization

Weeks 4-8: Significant relief; microbiome diversity increases

Months 3+: Full benefits; reduced infection recurrence

Patience and consistency are essential. Don't give up after just one week.

Myth 5: "More CFUs Always Mean Better Results"

Reality: While adequate potency matters, strain quality and diversity trump sheer CFU count. A formulation with 30 billion CFU of well-researched, vaginal-specific strains will outperform 100 billion CFU of generic or poorly characterized bacteria.

Look for:

• Clinically studied strain designations
• Diversity (8-10 complementary strains)
• Survivability guarantees
• Clean formulation without counterproductive fillers

Myth 6: "Vaginal Probiotics Can Replace Medical Treatment"

Reality: While vaginal probiotics excel at prevention and support, they don't replace medical care for active infections.

When to see a healthcare provider:

• First-time symptoms (to rule out STIs)
• Severe pain or fever
• Symptoms lasting more than a week
• Frequent recurrences despite probiotic use
• Unusual discharge colors (green, gray, or yellow)
• Pregnant individuals with any concerning symptoms

Think of vaginal probiotics as maintenance and prevention, not acute treatment for established infections.

Advanced Tips and Expert Insights for Maximizing Vaginal Probiotic Benefits

Ready to optimize your vaginal probiotic strategy? These evidence-based techniques enhance results.

Timing Strategies for Enhanced Colonization

Optimal timing considerations:

During and after antibiotics: Start vaginal probiotics immediately when beginning antibiotic treatment. Take them 2-3 hours apart from your antibiotic dose to prevent the medication from killing beneficial bacteria. Continue for 2-4 weeks after completing antibiotics.

During menstruation: Many women pause probiotics during their period, but this is precisely when pH fluctuations occur. Continue use throughout your cycle for maximum stability.

Before and after intercourse: Sexual activity can temporarily disrupt vaginal pH (semen is alkaline). Some practitioners recommend an extra probiotic dose on days you're sexually active.

Synergistic Supplementation

Consider pairing vaginal probiotics with:

• Vitamin D: Supports immune function in vaginal tissue. Studies show vitamin D deficiency correlates with increased BV risk (Hensel et al., 2011).
• Omega-3 fatty acids: Reduce inflammation and support healthy mucous membranes.
• Cranberry extract: Prevents UTI-causing bacteria from adhering to urinary tract walls. Combine with probiotics for enhanced UTI prevention.
• Prebiotic fiber: Feeds beneficial bacteria. Some formulations include PreBioFiber™ or similar proprietary blends.

Addressing Antibiotic-Resistant Infections

For women dealing with chronic, treatment-resistant infections:

Work with a functional medicine practitioner who can:

• Order comprehensive vaginal microbiome testing
• Identify specific pathogens causing recurrent issues
• Prescribe targeted antimicrobial treatments alongside probiotics
• Address underlying factors (hormonal imbalances, immune dysfunction)
• Consider biofilm disruptors: Some chronic infections involve bacterial biofilms that resist treatment. Natural biofilm disruptors like N-acetylcysteine (NAC) or specific enzymes may enhance probiotic effectiveness.

Personalization Based on Life Stage

Reproductive years (ages 18-40):

• Focus on UTI and yeast infection prevention
• Maintain regular probiotic use during antibiotic courses
• Support hormonal fluctuations through cycle

Perimenopause and menopause (ages 40-60+):

• Prioritize L. crispatus for pH maintenance as estrogen declines
• Consider higher potency formulations (40-50 billion CFU)
• Combine with vaginal moisturizers if experiencing dryness
• May benefit from topical vaginal estrogen alongside probiotics (consult provider)

Postpartum:

• Wait 4-6 weeks postpartum before starting vaginal probiotics
• Especially important after antibiotic exposure during delivery
• Supports recovery and reduces infection risk during vulnerable period

Future Trends in Vaginal Microbiome Science

The field of vaginal health is rapidly evolving. Emerging areas include:

Personalized probiotic formulations: Based on individual microbiome testing, future products may offer customized strain combinations tailored to your unique bacterial profile.

Postbiotic therapeutics: Research is exploring the beneficial compounds produced by probiotics (postbiotics) as standalone treatments that don't require live bacteria.

Microbiome-based diagnostics: Advanced testing may soon predict infection risk before symptoms appear, enabling proactive intervention.

Vaginal microbiome and fertility: Emerging research connects vaginal microbiome composition to fertility outcomes, pregnancy success, and prenatal health.

Phage therapy: Bacteriophages (viruses that kill specific bacteria) may offer targeted treatment for BV and other infections while preserving beneficial bacteria.

According to a 2024 market analysis, the women's probiotic segment is projected to grow 28% annually through 2030, driven by increasing awareness of microbiome science and demand for preventive, natural solutions (Grand View Research, 2024).

FAQ: Vaginal Probiotics for Women

How long does it take for vaginal probiotics to work?

Most women notice initial improvements in vaginal health within 2-4 weeks of consistent vaginal probiotic use. However, full microbiome restoration typically requires 6-8 weeks. Factors affecting timeline include severity of imbalance, quality of probiotic strains, consistency of use, and lifestyle factors. For prevention of recurrent infections, plan to use vaginal probiotics for at least 3 months before assessing long-term effectiveness.

Can I take vaginal probiotics every day?

Yes, daily use of vaginal probiotics is safe and recommended for most women, especially those with a history of recurrent infections, hormonal changes, or chronic stress. Take one capsule daily with food at approximately the same time each day for optimal colonization. Once you've achieved microbiome balance after 3+ months, some individuals reduce to 3-5 times weekly for maintenance, though many women benefit from continuous daily use.

Do vaginal probiotics help with odor and discharge?

Yes, vaginal probiotics can significantly reduce abnormal odor and discharge by restoring healthy pH balance and microbiome composition. Lactobacillus strains produce lactic acid that maintains acidic pH, preventing overgrowth of odor-causing bacteria. Most women notice improvements in odor within 1-3 weeks and normalized discharge (clear or white, minimal amount) within 4-6 weeks. However, sudden changes in odor or discharge should be evaluated by a healthcare provider to rule out infections.

What's the difference between vaginal probiotics and regular probiotics?

Vaginal probiotics contain specific Lactobacillus strains (like L. crispatus, L. gasseri, L. rhamnosus) clinically shown to colonize vaginal tissue and maintain vaginal pH, while regular probiotics focus on digestive strains that primarily benefit gut health. Quality vaginal probiotics also include Bifidobacterium species that support the gut-vagina axis connection. While some overlap exists, targeted vaginal probiotic formulations deliver superior results for intimate health concerns compared to generic digestive probiotics.

Are there any side effects of taking vaginal probiotics?

Vaginal probiotics are generally well-tolerated with minimal side effects. Some individuals may experience temporary mild gas or bloating during the first week as the gut microbiome adjusts. Rarely, people report increased discharge initially as the vaginal microbiome rebalances—this typically resolves within 2 weeks. If you experience severe discomfort, new symptoms, or allergic reactions, discontinue use and consult a healthcare provider. Choose clean-label formulations without maltodextrin or unnecessary fillers to minimize potential digestive upset.

Conclusion: Reclaim Your Vaginal Health With Targeted Probiotic Support

Vaginal probiotics represent a scientifically validated approach to preventing infections, maintaining pH balance, and supporting intimate wellness throughout every life stage. Unlike quick-fix treatments that only address symptoms, vaginal probiotics restore the foundational microbiome balance that protects against recurrent issues.

The research is compelling: formulations containing clinically studied strains like L. crispatus, L. gasseri, and complementary Bifidobacterium species can reduce infection recurrence by 50-60%, support hormonal transitions, enhance immunity, and improve overall comfort and confidence.

Key Takeaways:

Vaginal probiotics contain specific Lactobacillus strains that colonize vaginal tissue and maintain healthy pH

Quality formulations include 10-50 billion CFU across 8-10 complementary strains

Benefits include prevention of BV, yeast infections, UTIs, plus support during hormonal changes

Consistency matters—most women need 4-8 weeks to experience full benefits

Choose clean-label supplements without maltodextrin, stearates, or synthetic fillers

Support probiotics with microbiome-friendly lifestyle habits for optimal results

Whether you're dealing with chronic infections, navigating perimenopause, or simply committed to proactive feminine wellness, vaginal probiotics offer a natural, evidence-based solution that works with your body's innate wisdom.

Your vaginal health matters. Your comfort matters. And with the right probiotic support, the balance and confidence you deserve are within reach. 

Ready to restore your vaginal microbiome and reclaim intimate wellness? 

Support Your Vaginal Health and Get 20% off Vagiflora with code: VGFL20 click the link and order now.

 

References

Centers for Disease Control and Prevention. (2023). Vaginal candidiasis: Statistics and epidemiology. Retrieved from https://www.cdc.gov/fungal/diseases/candidiasis/genital/

Donders, G. G. G., Ruban, K., Bellen, G., & Petricevic, L. (2017). Mycotic vaginitis: Novel diagnostic biomarkers and new insights in pathophysiology. Frontiers in Microbiology, 8, 1845. https://doi.org/10.3389/fmicb.2017.01845

Falagas, M. E., Betsi, G. I., & Athanasiou, S. (2006). Probiotics for prevention of recurrent vulvovaginal candidiasis: A review. Journal of Antimicrobial Chemotherapy, 58(2), 266-272. https://doi.org/10.1093/jac/dkl246

Grand View Research. (2024). Women's health probiotics market size, share & trends analysis report by application (vaginal health, digestive health), by distribution channel, by region, and segment forecasts, 2024-2030. Market Research Report, GVR-4-68038-122-8.

Hensel, K. J., Randis, T. M., Gelber, S. E., & Ratner, A. J. (2011). Pregnancy-specific association of vitamin D deficiency and bacterial vaginosis. American Journal of Obstetrics and Gynecology, 204(1), 41.e1-41.e9. https://doi.org/10.1016/j.ajog.2010.08.013

Huang, H., Song, L., & Zhao, W. (2020). Effects of probiotics for the treatment of bacterial vaginosis in adult women: A meta-analysis of randomized clinical trials. Archives of Gynecology and Obstetrics, 301(6), 1479-1489. https://doi.org/10.1007/s00404-020-05526-8

Jang, S. E., Jeong, J. J., Choi, S. Y., Kim, H., Han, M. J., & Kim, D. H. (2019). Lactobacillus rhamnosus HN001 and Lactobacillus acidophilus LA14 attenuate Gardnerella vaginalis-infected bacterial vaginosis in mice. Nutrients, 11(8), 1913. https://doi.org/10.3390/nu11081913

Kovachev, S. M., & Vatcheva-Dobrevska, R. S. (2015). Local immunity and microbiome in the pathogenesis of chronic urinary tract infections. Journal of Clinical Gynecology and Obstetrics, 4(1), 113-118. https://doi.org/10.14740/jcgo310w

Macklaim, J. M., Fernandes, A. D., Di Bella, J. M., Hammond, J. A., Reid, G., & Gloor, G. B. (2013). Comparative meta-RNA-seq of the vaginal microbiota and differential expression by Lactobacillus iners in health and dysbiosis. Microbiome, 1(1), 12. https://doi.org/10.1186/2049-2618-1-12

Parma, M., Dindelli, M., Caputo, L., Redaelli, A., Quaranta, L., & Candiani, M. (2014). The role of Lactobacillus crispatus in vaginal health. Journal of Obstetrics and Gynaecology, 34(8), 673-677. https://doi.org/10.3109/01443615.2014.920790

Petrova, M. I., Lievens, E., Malik, S., Imholz, N., & Lebeer, S. (2015). Lactobacillus species as biomarkers and agents that can promote various aspects of vaginal health. Frontiers in Physiology, 6, 81. https://doi.org/10.3389/fphys.2015.00081

Ravel, J., Gajer, P., Abdo, Z., Schneider, G. M., Koenig, S. S., McCulle, S. L., Karlebach, S., Gorle, R., Russell, J., Tacket, C. O., Brotman, R. M., Davis, C. C., Ault, K., Peralta, L., & Forney, L. J. (2011). Vaginal microbiome of reproductive-age women. Proceedings of the National Academy of Sciences, 108(Supplement 1), 4680-4687. https://doi.org/10.1073/pnas.1002611107

Reid, G., Charbonneau, D., Erb, J., Kochanowski, B., Beuerman, D., Poehner, R., & Bruce, A. W. (2003). Oral use of Lactobacillus rhamnosus GR-1 and L. fermentum RC-14 significantly alters vaginal flora: Randomized, placebo-controlled trial in 64 healthy women. FEMS Immunology and Medical Microbiology, 35(2), 131-134. https://doi.org/10.1016/S0928-8244(02)00465-0

Schwenger, E. M., Tejani, A. M., & Loewen, P. S. (2015). Probiotics for preventing urinary tract infections in adults and children. Cochrane Database of Systematic Reviews, 12, CD008772. https://doi.org/10.1002/14651858.CD008772.pub2

Stapleton, A. E. (2016). The vaginal microbiota and urinary tract infection. Microbiology Spectrum, 4(6). https://doi.org/10.1128/microbiolspec.UTI-0025-2016

Turovskiy, Y., Sutyak Noll, K., & Chikindas, M. L. (2011). The aetiology of bacterial vaginosis. Journal of Applied Microbiology, 110(5), 1105-1128. https://doi.org/10.1111/j.1365-2672.2011.04977.x

Vujic, G., Jajac Knez, A., Despot Stefanovic, V., & Kuzmic Vrbanovic, V. (2013). Efficacy of orally applied probiotic capsules for bacterial vaginosis and other vaginal infections: A double-blind, randomized, placebo-controlled study. European Journal of Obstetrics & Gynecology and Reproductive Biology, 168(1), 75-79. https://doi.org/10.1016/j.ejogrb.2012.12.031