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A round tin aluminium box holding 30 ProViotics tablets containing good lactobacilli that are freeze-dried

Support the diversity of your microbiome with ProViotics, containing only live lactobacill...Read more

An illustration signifying the vaginal microbiome and its protective properties, which prevent recurrent vaginal infections which are caused by antibiotic and anti-fungal treatments

Meet your vaginal flora

Like your gut, your vagina is home to billions of bacteria (some good, some bad). These make up your vaginal microbiome. When it doesn’t contain enough good bacteria, you’re at greater risk of infections like STIs, thrush and BV.

Is your vaginal microbiome surviving, or thriving?

Having a high level of good bacteria (Lactobacilli) means your vaginal microbiome is thriving.

Why should you care? Because it’s not just thrush and BV it wards off. A healthy vaginal microbiome has been shown to lessen the risk of other vaginal health problems too.

A healthy vaginal microbiome is associated with:
An illustration of the vaginal microbiome showing how good and bad bacteria including lactobacilli and pathogens interact
an illustration of the uterus and ovaries showing an ovarian issue such as PCOS or endometriosis
an illustration of a healthcare report illustrating the relationship between gynaecological cancers and the vaginal microbiome
an ultrasound illustration showing the relationship between the vaginal microbiome and fertility including pre-term labour and miscarriage

Enhance your gut and vaginal microbiome alike

Lab tests have confirmed that ProViotics survive in the acidic environments of both the gut and the vagina. This means they reach you alive, unlike other brands of probiotics.

Read study

Completely free from nasties

Lactobacillus plantarum GLP3 is extracted from fermented vegetables, and grown in organic carrot juice. It’s completely free from additives and nasties — it doesn’t even come in a capsule. With ProViotics, you get live, freeze-dried lactobacilli. The good stuff.







Backed by science

We work closely with our medical advisory board and a select group of clinical institutions to ensure our research gets an expert seal of approval.

Certain good bacteria can contribute to the overall health of the vaginal microbiome. A balanced vaginal microbiome is defined as having a ratio of good to bad bacteria of 80 to 20 or better. Daye's ProViotic was developed specifically to increase the ratio of good bacteria in the vaginal canal, strengthening the overall health of the vaginal microbiome.
Simon Gaisford FRSC CChem SRPharmS
Professor of Pharmaceutics, UCL School of Pharmacy

Zero waste vaginal care

Every part of our ProViotics product can either be reused, or naturally decomposed. It comes with a compostable refill pouch — reducing waste and emissions with every cycle.

Aluminium Jar
Cardboard Box & Mailer
Compostable Refill Pouch
Cardboard Box & Mailer

Introducing the Daye At-Home Vaginal Microbiome Screen

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*Aftercare options are subject to availability in your area. Additional fees are payable for some of these services.

Frequently asked questions

Still have questions? Read all of our FAQs.

  • Take Daye ProViotics once daily as a supplement with food. ProViotics can be incorporated as part of your everyday wellness routine. Our healthcare nurses may also recommend them based on your individual needs, especially after a Vaginal Microbiome Screening or STI Screening using our Diagnostic tampon.

Lactobacillus Plantarum GLP3 (grown in organic carrot juice) and plant-derived cellulose

Store in a cool dry place. ProViotics are freeze-dried, so you don’t have to refrigerate them.

Our ProViotics tin is made of endlessly recyclable aluminium, and we ship them to you in a recycled cardboard box. The refill pouch is fully compostable (even though it may look like plastic!) and is safe for both home and industrial composting.

Take Daye ProViotics once daily as a supplement with food.

Not really! Lactobacilli have a long and safe history of use in humans. As they are vegan and allergen-free it’s unlikely that you will have a negative reaction.

With a monthly subscription, you get the most flexibility. You can cancel or pause anytime. Monthly subscriptions also come with 6% off the price of a one-off box.

Multi-month subscriptions allow us to provide the highest possible discount on your ProViotics order. We currently have 2 options — a 3-month subscription, and a 12-month subscription. You can't cancel your order if you commit to a longer subscription, but you do benefit from a larger discount. With the multi-month subscriptions, you also save carbon emissions as we ship your boxes up-front in 3-month instalments. For best results, we recommend you commit to at least 3 months of using ProViotics continuously. Lactobacilli can take a while to repopulate your gut and vaginal microbiome. Your box will be shipped with a tracked delivery service ensuring you know exactly when it will arrive.

Yes, Daye ProViotics are safe to use when pregnant, breastfeeding or TTC.

Research suggests that Lactobacilli-containing probiotics have potential benefits for maternal and neo-natal well-being.

  • Daye ProViotics contain bacteria grown in organic carrot juice, whereas most probiotic products are grown in milk cultures. They’re free from allergens like soy, dairy, nuts and gluten.
  • The bacteria we use is also freeze-dried, which means it retains its properties for longer, and you don’t have to store it in the fridge.
  • Each tablet contains 2.5 billion live cells of Lactobacillus plantarum GLP3. What's key about Daye ProViotics is that all of our cultures are live, which means they can reach your gut or vagina.

While ProViotics aren't considered medications (hence, we cannot say that they “cure” thrush),  reveal a strong 99.8% efficacy of Lactobacillus Plantarum against Candida, the fungus linked to yeast infections. Our ProViotics can support the diversity of your vaginal microbiome, which in turn can offer potential support against infections like thrush and BV.
Learn more about how probiotics can help you look after your vaginal microbiome and support your vaginal health here.

The bacteria we use is freeze-dried, which means it retains its properties for longer, and you don’t have to store it in the fridge.

Great question. The answer is both!

We already know how important the gut is for overall health, but researchers are starting to unveil how the gut plays a role in vaginal health as well.

Yes, you can purchase a Daye gift card for the Daye fans in your life, or if you're not sure whether to gift someone our period care items, nourishing CBD balm, or good-bacteria-rich ProViotics. If you have a friend that's been struggling with their period and you want to support them, but you are not sure what size or type of tampon they'd like, the gift card means you can show them you care, while letting them customise their own box. Learn more about our gift cards here.

Daye tampons are manufactured in accordance with medical device standards, including ISO13485 and GMP. In order for a diagnosis to be confirmed, test results from the Diagnostic Tampon should be considered by a licensed healthcare provider alongside a patient's symptoms and medical history. Like every other diagnostic test, lab results are not sufficient for a diagnosis. Daye offers customers the option to connect with independent CQC-regulated healthcare providers virtually and in-person for a confirmed diagnosis. All prescriptions and treatments provided through the Daye platform are issued by third-party, independent pharmacists, who are also regulated under CQC and GPhC.