Person holding a red tampon box against a mars landscape with a reddish-brown color.

Bioactive menstrual care.
Designed for the vaginal microbiome.

We are developing the future of tampons, guided by microbiome science and created to support the vaginal environment during menstruation, when the body is most vulnerable to disruption.

Be part of the next era of menstrual care.

Research updates • Development progress • Early access

Join the hundreds of women
already on our founding waitlist to experience microbiome-first menstrual care.

Launching 2026

We’ve been ignoring one of the most powerful ecosystems in the female
body

For nearly 100 years, menstrual products have remained largely unchanged - despite major advances in our understanding of women’s biology and the microbiome.

The vaginal microbiome represents one of the most influential microbial ecosystems in the female body, playing a central role in gynaecological health, vaginal immunity and long-term wellbeing.

During menstruation, this ecosystem becomes uniquely vulnerable. As hormone levels shift:

• Vaginal pH rises
• Protective bacteria decline
• Sensitivity increases
• The microbiome becomes susceptible to disruption

Yet most menstrual products were never designed with this biology in mind. They were designed for absorption, not for proactive vaginal health.

As a result, millions of women experience irritation, imbalance, discomfort and preventable infections that have been normalised for far too long.

We don’t accept that.

Biology-led

Medical device standard

Microbiome-first

Why we exist

Imagine a tampon designed to support your vaginal microbiome and naturally help those prone to common vaginal infections, such as bacterial vaginosis or thrush, conditions that affect more than 1 in 3 women globally.

It’s possible.

Women’s health has long been underserved by products that haven’t evolved alongside scientific understanding.

The vaginal microbiome is one of the most overlooked ecosystems in human health. Despite growing research into the vaginal and vulval microbiome, and how existing menstrual products affect this beautiful and delicate microbial cosmos, menstrual care still relies on legacy synthetic materials and unnecessary chemicals, not because they’re optimal, but because they are cheap and there has been no meaningful innovative alternative. This has become the status quo.

At a minimum, products used internally should be non-toxic, well-considered and safe by design. We believe that should be the baseline, not the innovation.

The Daughters of Mars exists to go further.

We’re developing next-generation tampons manufactured and tested to medical device quality standards, applying the level of rigour women’s health has long been denied.

Our 100% GOTS certified organic tampons are coated with our patented microbiome technology, designed to better support the vaginal environment during menstruation - working with the microbiome, not against it.

Guided by women’s biology. Developed by women.

Launching 2026

Frequently Asked Questions

Most menstrual products haven’t evolved alongside scientific understanding of the vaginal environment.

The Daughters of Mars is developing next generation tampons designed with women’s biology in mind - informed by research into the vaginal and vulval microbiome and developed using a patented coating that has been clinically proven to support the vaginal microbiome and prevent vaginal discomfort and reduce infection risk.

Rather than relying on legacy materials or outdated regulation, our products are developed to medical device quality standards despite this not being legally required in the UK or EU. They use 100% GOTS certified organic cotton with a GOTS certified coating, alongside safety and biocompatibility testing and an upcoming clinical trial led by Dr Phillip Hay, global expert in bacterial vaginosis (BV).

The vaginal microbiome is sensitive to changes in pH, particularly during menstruation.

Our approach is to design products that work with these natural changes, not against them. At the core of our products is a proprietary, naturally derived coating designed to better support the vaginal environment, allowing women to proactively support their vaginal health during menstruation.

In ancient mythology, the Amazons were warrior women who lived at the edges of the then-known world, pushing geographical frontiers, conquering new territories and challenging the limits of accepted knowledge and convention. They called themselves the daughters of Mars, invoking the Roman god of war to project strength, authority and fearlessness. Their name was not symbolic. It was a declaration of power, designed to command respect and unsettle their adversaries. We chose this name deliberately.

Today, women’s menstrual products still sit outside the margins of scientific research and commercial innovation. While wellness culture leans into soft, passive goddess imagery, the reality of female biology demands rigour, courage and disruption.

The Daughters of Mars represents women operating at the frontier scientifically, culturally and biologically. We build at the edge of what currently exists, pioneering bioactive technologies, microbiome science and medical-grade standards that transform menstrual care into proactive healthcare.

This is not symbolic empowerment.

It is embodied strength, backed by science.

Yes, the vaginal microbiome is naturally self regulating in healthy conditions. However, menstruation is one of the most disruptive periods in the vaginal ecosystem.

During a period, vaginal pH temporarily rises, protective lactobacilli can be reduced, and iron-rich menstrual blood creates an environment that opportunistic bacteria can thrive in. This is one reason bacterial vaginosis and thrush are more likely to develop around or after menstruation.

Modern lifestyle factors such as stress, antibiotics, hormonal contraception, environmental chemicals and conventional period products can further destabilise this delicate balance.

Functional menstrual products do not replace the body’s natural defences. They are designed to support them, helping maintain protective conditions during this vulnerable window rather than leaving the microbiome unprotected.

In short, we are not “fixing” the body. We are working with it, supporting its innate wisdom.

We are currently completing safety and biocompatibility testing to medical device standards alongside clinical evaluation and are raising investment to bring our first products to market.

Our first products are planned to launch in 2026. You can join the founding waitlist to receive updates as we progress via the form in the footer. If you would like to help us build the future of menstrual health, contact our founder here.

We’re also inviting people to take part in our survey, contributing to the evidence and insight guiding our product development.