new generation, new routine

Menstrual underwear is more sustainable than tampons and sanitary pads

This has been investigated using a Life Cycle Analysis (LCA), conducted by Stan Kremers. This shows that period underwear results in 80% less CO₂ emissions, 85% less fossil fuel consumption, and 76% less water consumption compared to sanitary pads.

Menstrual underwear is more sustainable than tampons and sanitary pads

This was investigated using a Life Cycle Analysis (LCA), conducted by Stan Kremers. This shows that period underwear results in 80% less CO₂ emissions, 85% less use of fossil fuels, and 76% less water consumption compared to sanitary pads.

sustainability and comfort in one solution

We have chosen bamboo instead of cotton for some of our panties. Bamboo has rounder fibers which makes it feel softer than cotton and bamboo can absorb moisture more easily, which makes it feel drier. That is nice.


Bamboo production also requires less water and uses fewer pesticides than cotton production. This also makes the planet a little happier.

We are continuously working on improving our products, both in terms of material, model and functionality.

407,243 kg

saved on menstrual waste

120,653,480 m3

water saved, which is equivalent to 47,771 Olympic swimming pools

976 646 kg

saved on CO2 emissions

3728 pants

donated to help reduce period poverty

how much does moodies save?

We have calculated how much waste, water, and disposable products you have saved by purchasing Moodies period underwear. We also calculated how many pairs of underwear we have donated to people who desperately need them.

These figures show the impact we are making together. We will update the figures every quarter so that we can continue to monitor and share our progress.

Period: 12/11/2021 - 31/05/2026

*When calculating the saved cubic meters of water, we made an assumption regarding the water savings associated with the nylon pants. Sales of our bundles are not included.

What to look for

Best Choice

moods

sanitary pads

numbers

1 pair of Moodies underwear

150 sanitary pads

service life

26.298 hours

600 hours

Price

from €19.95

from €59.99

CO2 emissions during use

1.35 kg

6.65 kg

waste

40 grams

2250 grams

water consumption

200 litres

1100 litres

scientifically proven

Moodies commissioned the VU Amsterdam to independently investigate the environmental impact of period underwear — and the outcome is clear.

Stan Kremers (VU Amsterdam, Science, Business and Innovation) conducted a Life Cycle Analysis on Moodies bamboo briefs, compared to disposable pads. The results:

  • 80% less CO₂ emissions
  • 85% less fossil fuels
  • 76% less water consumption
  • 76% less land use
  • 65% lower human toxicity

These figures are calculated over the annual use of period underwear compared to sanitary pads. The study shows that 150 disposable products are equivalent to 1 pair of period underwear.

The full study can be requested via info@moodiesundies.com.

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our best-selling products

period swimwear - swimsuit

period swimwear - swimsuit

€59,95
  • €59,95
    period swimwear - bikini bottom with ties

    period swimwear - bikini bottom with ties

    €35,95
  • €35,95
    boyshort

    boyshort

    €30,95
  • €30,95
    lace thong

    lace thong

    €27,95
  • €27,95
    everyday lace hipster

    everyday lace hipster

    €32,95
  • €32,95

    your period without waste

    An average woman uses approximately 60 to 90 kg of tampons and sanitary pads in her lifetime, which amounts to about 250 to 300 disposable products annually. This creates a large amount of waste, because:

    • Sanitary pads consist of approximately 90% plastic
    • Tampons contain approximately 6% plastic
    • Nature needs more than 500 years to break down these products

    Period underwear structurally solves this problem. One pair of Moodies underwear lasts 2 to 3 years and replaces 150 disposable products.

    Besides period underwear, there are also other sustainable alternatives, such as a menstrual cup, reusable sanitary pads, or reusable tampons. Which choice is best depends on your needs and flow. Moodies offers period underwear in every absorbency level, so you always have a suitable option.

    meiden menstruatie ondergoed zwart bamboe
    girls change the menstruation future

    For a cleaner future, the biggest gains can be made with young girls who are developing their first menstrual routines. They are not yet accustomed to disposable products and are therefore more likely to switch.

    Menstrual underwear offers girls concrete benefits:

    • Up to 8 hours of wear without changing or leaking
    • No hassle with bringing tampons or pads to school
    • Comfortable during sports - barely distinguishable from regular underwear
    • Less waste - good for the planet and for their self-esteem

    Sustainable materials and packaging

    All Moodies panties are made from OEKO-TEX certified fabric and are 100% PFAS-free.

    What does that mean in concrete terms?

    • OEKO-TEX certified - the fabric has been tested for over 100 harmful substances, including heavy metals, pesticides and allergens
    • PFAS-free - no use of chemicals that have been found in some period underwear and can be harmful with prolonged skin contact
    • Recycled materials - a large part of our nylon products are made from recycled nylon

    Our packaging is also consciously chosen:

    • FSC-certified materials - sourced from responsibly managed forests
    • Recycled cardboard - incorporated into the packaging where possible
    • No unnecessary plastic - we keep the packaging as simple and light as possible

    We are continuously working to further improve both our products and packaging, in terms of people and the environment.

    frequently asked questions about the sustainability of period underwear

    How sustainable is period underwear compared to sanitary pads?

    Moodies menstrual underwear has a significantly lower environmental impact than disposable sanitary pads, according to an independent Life Cycle Analysis conducted by Stan Kremers (VU Amsterdam). One pair of Moodies underwear replaces 150 sanitary pads over its lifespan. This results in 80% lower CO₂ emissions, 76% lower water consumption, and up to 56 times less waste.

    Is Moodies period underwear safe for my body?

    Moodies period underwear is made of OEKO-TEX certified fabrics and is 100% free of PFAS. PFAS are chemical substances that have been found in some period underwear and can be harmful with prolonged skin contact. OEKO-TEX certification means that the fabrics have been tested for over 100 harmful substances. Moodies applies this standard to its entire collection.

    How much waste do I save if I switch to period underwear?

    Moodies customers have collectively saved over 407,000 kg of menstrual waste (period November 2021 – May 2026). An average woman uses about 250 to 300 disposable products annually — accounting for several kilograms of residual waste per year. One Moodies panty replaces 150 sanitary pads and lasts for 2 to 3 years.

    Why does Moodies choose bamboo instead of cotton?

    Moodies uses bamboo because its production consumes less water and requires fewer pesticides than cotton cultivation. Bamboo naturally has rounder fibers, making it feel softer and absorb moisture better. The VU Amsterdam Life Cycle Analysis shows that using bamboo instead of cotton is one of the biggest factors behind Moodies briefs' 76% lower water consumption.

    What is a Life Cycle Analysis and what does it say about Moodies?

    A Life Cycle Analysis (LCA) maps out the total environmental impact of a product, from raw material extraction to disposal. Moodies commissioned an independent LCA from Stan Kremers, a graduate researcher at VU Amsterdam (Science, Business and Innovation program). The result: Moodies bamboo period underwear emits 80% less CO₂, uses 85% less fossil fuels, 76% less water, and 76% less land than disposable sanitary pads. Human toxicity is 65% lower.

    Is menstrual underwear also cheaper than tampons and sanitary pads?

    Moodies period underwear costs less in the long run than disposable products. On average, a woman spends about €12 per month on tampons or sanitary pads, which is over €140 per year. Five pairs of Moodies are enough for a full menstrual cycle and last 2 to 3 years. During that period, you save €150 to €200 compared to disposable products.

    Sustainable Development Goal 12

    We contribute to sustainable production and consumption, with more efficient use of raw materials. This reduces the pressure on the environment and reduces dependence on those raw materials.

    Sustainable Development Goal 5

    The degree of equality is measured, among other things, by the difference in pay for work and position, but also by the labor participation of men and women in business and administration. With our products we ensure improved labor participation of women.