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4.8
Rated 4.8 out of 5 stars
4,893 Reviews

The Killer® (Boric Acid Suppositories)

Personal Care · 14 suppositories

A boric acid vaginal suppository that supports a healthy vaginal environment. See ingredients

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DETAILS HOW TO USE INGREDIENTS
  • An OB/GYN-developed vaginal suppository that maintains healthy levels of Candida yeast in the vagina
  • Supports balanced vaginal pH levels and healthy vaginal flora (bacteria)
  • This intimate health must-have is made with clinically-tested ingredients that are kind to skin.
  • Single ingredient (boric acid) suppository made without fragrance or essential oils because we don't believe they belong in women's vaginal care
read FAQS
  • With clean hands, insert 1 suppository into the vagina at bedtime daily as needed or for up to 14 days.
  • Expect some discharge over the course of the night (we like to wear a thin pad to protect our undies) but understand that this is normal.
  • Avoid sexual intercourse when using this product. You should always insert after you have fully emptied your bladder, especially after sexual intercourse.
  • If using The Killer® along with Flora Power™ to keep a healthy and balanced vaginal microbiome, we recommend using The Killer® first for anywhere between 1-14 days, depending on your body's needs, and then Flora Power™ for up to 5 days. You'll want to use just one suppository at a time and complete a run of one product before moving onto the next.
  • Gluten-Free & Dairy-Free
  • 600mg Boric Acid, Gelatin Capsule
VIEW SUPPLEMENT FACTS
The Killer® (Boric Acid Suppositories)
4.8
Rated 4.8 out of 5 stars
4,893 Reviews

Why We Made The Killer®

Off-the-shelf solutions weren't cutting it, so we teamed up with OB/GYNs to bring you our incredibly popular solution for healthy yeast balance. The Killer is formulated with just one, powerful ingredient: boric acid. It provides fast support for a healthy vaginal environment and unlike other brands is made without fragrance or essential oils, two ingredients we don't believe belong in a woman's vaginal care routine.

Formulated for peace of mind

  • Traceable non-GMO ingredients

  • No fragrance or essential oils

  • Part of a
    Biome-Positive™️ routine

  • Developed by doctors

We’re here to support you

  • Balances Vaginal Yeast
  • Supports A Healthy Vaginal Environment
  • Fast-Acting, Single-Ingredient Suppository
  • Fragrance-Free
  • Balances Vaginal Yeast
  • Supports A Healthy Vaginal Environment
  • Fast-Acting, Single-Ingredient Suppository
  • Fragrance-Free
  • Balances Vaginal Yeast
  • Supports A Healthy Vaginal Environment
  • Fast-Acting, Single-Ingredient Suppository
  • Fragrance-Free

Made with only thoughtful ingredients

Developed
by doctors
GMO-Free

Made with only thoughtful ingredients

Boric Acid
Boric Acid comes from a mineral in sea water and is known for supporting a calm, healthy vaginal environment.

The Killer® FAQs

The Killer, made of boric acid, is a vaginal suppository designed to support healthy levels of vaginal yeast and a balanced vaginal microbiome. 


Boric Acid is a white powder or colorless crystal that balances yeast in the body. Boric acid has been used for over a hundred years for vaginal health support when it comes to keeping one’s vaginal flora balanced. A balanced vaginal flora = a healthy vagina!

The Killer is a vaginal suppository — not a pill you take by mouth. We know it looks similar, but this will be inserted vaginally. 

To use: Wash your hands well to gently insert The Killer with your fingers into your vagina. It should be inserted a comfortable amount, which should be far enough that it won't have the chance to slip out. There is no need to alter the capsule in any way. Just pop it in — that's it! Within a few hours, the capsule will start to dissolve and get to work.

Discharge is expected when using a vaginal suppository, so we recommend wearing a panty liner to help keep you clean.

We recommend using it at bed time so it can be one less thing you have to worry about during the day as it can cause discharge.

How long you use The Killer depends on your body and your needs. You can use The Killer for as little as 1-3 days or for as long as 7-14 days (an entire box). We recommend use of only one suppository every 24-hour period.

While both products are vaginal suppositories, they focus on different aspects of vaginal health, but work together to keep a healthy and balanced vaginal microbiome.

Not sure which suppository is best for you? Find out here!

The Killer®️ is designed to support healthy levels of vaginal yeast. Flora Power™️ is designed to support healthy levels of vaginal bacteria and help maintain a fresh vaginal odor.

To use both The Killer® and Flora Power™️, we recommend first using The Killer® for 1 to 14 days (depending on your needs) to help balance vaginal yeast and pH. Then a few days, after completing use of The Killer®️, you can use Flora Power™️ for 1 to 5 days as needed to help manage vaginal bacteria and flora.

With the use of The Killer to help support a balanced vaginal environment, you can expect to experience a reduction in the itching and irritation which can often be associated with a yeast imbalance. Depending on your body and needs, you may see results in as little as one day or up to five days. Having a consistent regimen will be critical for managing a healthy vaginal yeast.

The Killer was designed to support healthy levels of vaginal yeast. If you’re looking to maintain fresh vaginal odor, we recommend trying Flora Power. Flora Power focuses on supporting balanced vaginal pH and bacteria — it’s great for those looking for freshness!

No — The Killer is a vaginal suppository and is meant to only be inserted into the vagina. Do not insert The Killer into any other part of your body.

The Killer is not vegan due to the gel capsule, but it is both gluten-free and dairy-free.

There are many different types of acids with ranging levels of pH (or potential of hydrogen, which is the measurement used to determine acidity). Many acids are “weak acids,” meaning they are safe to use. Common things in your house that contain weak acids are coffee, vinegar, and lemons.

Similarly, boric acid is a very weak acid and has many health and wellness uses, so don’t be scared by its name! The Killer was formulated by a medical doctor and is manufactured with pharmaceutical-grade boric acid in our FDA registered facility according to CGMP standards – meaning, it’s safe to use as directed!

We recommend waiting until the end of your period (or almost the end) before beginning to use The Killer.

We recommend waiting 24-48 hours after using The Killer before having sex.

Given that everyone is different and unique to their health, we recommend checking in with your doctor to make sure there are no interfering or contradicting ingredients between your birth control and The Killer.

The Killer is not approved for use if you are pregnant or breastfeeding. Please consult with your doctor to see which products may be most suitable for use while you are pregnant or breastfeeding.

For complete vaginal care, we recommend pairing The Killer® with:

If using The Killer® with Flora Power™, you'll want to complete use of The Killer first, wait 1-2 days, then using Flora Power™.


As always, anytime you add anything new to your regimen, we recommend checking in with your doctor/healthcare provider to ensure it makes sense for you, and they can answer any more specific questions you might have!

VIEW MORE FAQS

Real people, real reviews

4.8
Rated 4.8 out of 5 stars
4,893 Reviews
4.8
Rated 4.8 out of 5 stars
Based on 4,893 reviews
Total 5 star reviews: 4.4k Total 4 star reviews: 299 Total 3 star reviews: 74 Total 2 star reviews: 43 Total 1 star reviews: 88
96%would recommend this product
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4,893 reviews
  • Ashley W.
    Verified Buyer
    I recommend this product
    How old are you? 25-34
    This helped with Imbalanced pH, Urinary tract health, Overall vaginal health
    Do you subscribe to this product? Yes
    Would you recommend to a friend? Yes (duh!)
    Rated 5 out of 5 stars
    They work

    No issues since starting to use this product

  • Kayla K.
    Verified Buyer
    I recommend this product
    How old are you? 25-34
    This helped with Itch, Skin irritation, Overall vaginal health
    Do you subscribe to this product? Yes
    Would you recommend to a friend? Yes (duh!)
    Rated 5 out of 5 stars
    Really does help

    I have had some sort of nonspecific vaginitis for months. Severe itching that gets worse when you try to scratch. Sometimes would wake me up in the middle of the night given how bad it was. I tried various washes, balms, and vitamin E suppositories but these boric acid suppositories are the only thing that helped me. Unfortunately I have to stop using them as I am now trying to conceive but they are the best.

  • MELISSA B.
    Verified Buyer
    I recommend this product
    How old are you? 45-54
    This helped with Imbalanced pH, Overall vaginal health
    Do you subscribe to this product? Yes
    Would you recommend to a friend? Yes (duh!)
    Rated 5 out of 5 stars
    Great product

    It helped balance my pH levels

  • Marissa L.
    Verified Buyer
    I recommend this product
    How old are you? 25-34
    This helped with Odor
    Do you subscribe to this product? Yes
    Would you recommend to a friend? Yes (duh!)
    Rated 5 out of 5 stars
    Instant results

    Worth the money!!

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Developed
by doctors

Advised by industry professionals

We know your health is important to you. That’s why we’ve comprised a team of specialists to consult, advise, and support us in the creation of our products.