Is a Menstrual Cup More Eco-Friendly Than a Reusable Pad? What the Research Actually Shows
TESSA · CONSCIOUS PERIOD CARE
Is a Menstrual Cup More Eco-Friendly Than a Reusable Pad? What the Research Actually Shows
A research-led comparison of menstrual cups and reusable cloth pads—and what makes either choice more sustainable.
If you care about the environment and are choosing between a cup and a reusable pad, you deserve more than a slogan. This guide explains what "eco-friendly" means, what the research found, where cloth pads can compete, and how to make either choice greener in an Indian context.
For a comparison of cups and disposable pads in Indian weather, see our climate guide. This article focuses on cups versus reusable pads and what environmental research says about both.
Key Takeaways
- Cups ranked lowest in impact in a 2022 multi-country life cycle assessment that included India. Menstrual underwear and reusable pads followed.
- All reusable options performed far better than disposables in the research reviewed. The shift from disposable to reusable matters more than the comparison between cup and cloth.
- Results depend on assumptions: product lifespan, washing habits, local water and electricity, and drying methods all matter.
- Cloth pads need regular washing, using water, detergent and sometimes energy. Cups need a small amount of water for rinsing and boiling.
- Silicone is not biodegradable, but a cup is small and can last for years.
- The greenest product is the one you actually use for years. A cup left unused provides no practical environmental benefit.
What "Eco-Friendly" Actually Means
Words like "green" and "sustainable" are easy to print on a box. To compare products fairly, researchers use a method called life cycle assessment (LCA). It adds up a product's environmental impact from start to finish:
- Raw materials: growing cotton, making silicone, producing plastics.
- Manufacturing.
- Packaging and transport.
- Use: water, detergent and energy needed to wash or sterilise the product.
- End of life: how the product is disposed of.
To make a fair comparison, studies usually compare what one person would need over the same period, often one year. A reusable product may have a larger footprint at manufacture, but it is used repeatedly.
What the Research Found
Several life cycle assessments have compared menstrual products. Two studies highlighted in this article are:
| Study | What it compared | Key finding |
|---|---|---|
|
Fourcassier et al., 2022 Cleaner Environmental Systems France, India and US |
Disposable tampons and pads (organic and non-organic), reusable pads, menstrual underwear and cups, over one year and across eight impact indicators. | Cups had the lowest impact score across all indicators and all three countries. The reported score was about 99% lower than disposable non-organic tampons. Underwear ranked second, reusable pads third. |
|
Hait and Powers, 2019 Resources, Conservation and Recycling US |
Disposable pads, tampons and a reusable cup. | The cup was lowest across the environmental measures studied, with a total impact score roughly 99.6% lower than the pad. |
Why this is useful for readers in India: India was one of the three countries in the 2022 assessment, so the finding that cups ranked lowest is not solely a Western result.
A fair note on limits: Life cycle assessments are models. Their results depend on assumptions about product lifespan, washing habits, local electricity and water, and disposal. Different assumptions can change the size of the gap, though the broad ranking—reusables well ahead of disposables—is consistent in the research reviewed.
Cup vs Reusable Pad: A Side-by-Side Look
| Factor | Menstrual cup | Reusable cloth pad |
|---|---|---|
| Typical lifespan | Several years with proper care, sometimes up to around a decade. | Commonly a few years, depending on fabric and washing. |
| Materials | Medical-grade silicone. | Cotton, bamboo or other fabric, often with a waterproof or synthetic layer. |
| Items needed | One cup (sometimes a second size). | Several pads for rotation. |
| Water and washing | Rinse at each change; boil or sterilise between cycles. | Rinse or soak, then wash—usually after every use. |
| Detergent | No detergent needed beyond mild soap for rinsing, as appropriate for product instructions. | Used with each wash. |
| Energy | Heating water to sterilise. | Depends on washing and drying. Hot washes and machine drying add energy. |
| End of life | Silicone is not biodegradable, but the item is small. | Natural fibres may biodegrade, but synthetic layers may not. |
| Waste during use | Almost none. | None. |
| Learning curve | There can be one. | Very little. |
| Comfort in heat | No external layer. | An external layer may feel warm or damp. |
Where Reusable Pads Can Compete
It would be dishonest to say cups win on every point. Cloth pads have real advantages:
- No insertion: for anyone not ready for an internal product, a reusable pad is a genuine, lower-impact option.
- Natural materials: cotton or bamboo fabric can biodegrade, though this depends on synthetic layers and disposal conditions.
- Simple technology: no sizing or sterilising routine.
- A good fit for many routines, particularly at home.
Where the impact can creep up for cloth pads
- Hot-water washing and machine drying add energy use. Cold washes and sun drying can help.
- Frequent washing and detergent use add water and material impacts.
- Several pads are needed, meaning more material to produce.
- A shorter lifespan, if pads wear out sooner, can increase impact per use.
Where Cups Can Fall Short
- Silicone does not biodegrade. A cup is small and can last for years, but it becomes waste at end of life. Using it for its full lifespan matters.
- Sterilising uses energy. Boiling water for a few minutes is a small but non-zero impact.
- A cup that does not fit can go unused. If you buy a cup, never use it, and replace it, the environmental benefit disappears. Fit and guidance matter. See our sizing guide.
- Early replacement: the longer you use one cup appropriately, the lower its footprint per use can be.
The Indian Context
- Water: cloth pads need regular washing, which uses water and detergent. Where water is scarce or expensive, this is a real consideration. Cups also need clean water for rinsing and sterilising.
- Drying: sun drying is free and useful for cloth pads, but during monsoon season or in shared housing it can be difficult. Pads should be fully dried and stored hygienically. See our climate guide.
- Disposal: disposable pads often end up in landfill or are burned. Avoiding them can matter where waste systems are weak.
- Privacy: washing and drying cloth pads in shared homes or hostels can be difficult. Cups can be cleaned quickly and discreetly when facilities and clean water are available. See our hostel guide.
- Access: a cup is a single purchase. Reusable pads require several items, so the upfront cost can be higher for some people.
A Simple Way to Think About the Numbers
You do not need a spreadsheet to see why reusables can win. Consider this illustrative example:
If someone uses about five disposable pads a day for five days each cycle, that is around 25 per cycle, roughly 300 a year, and about 1,500 over five years. A single cup can replace many of those disposables, and a handful of cloth pads can too. The difference between the two reusable options is much smaller than the difference between either and a drawer full of disposables.
These figures are illustrative, not a measurement. Individual usage will differ.
How to Make Either Choice Greener
If you use a cup
- Use it for its full lifespan, checking its condition and following the manufacturer's care instructions. See our lifespan guide.
- Boil efficiently: use only the water you need, with a lid on when safe and suitable.
- Choose an appropriate size and fit so the product is actually used. See our sizing guide.
- Rinse with only the water you need, without compromising hygiene.
- At end of life, dispose of it responsibly. Most household recycling programmes will not accept it, so check local options.
If you use reusable pads
- Wash cold or warm, rather than hot, and with full loads where practical.
- Dry fully in the sun when feasible.
- Use a gentle detergent suitable for the fabric; avoid fabric softener, which can reduce absorbency.
- Keep enough pads to rotate without buying more than you need.
- Maintain them well so they last longer.
Either way: the biggest saving is avoiding disposables altogether.
Which Should You Choose?
| If this sounds like you | A possible fit |
|---|---|
| You want low overall impact and are comfortable with an internal product. | A cup. |
| You are not ready for an internal product. | A reusable pad; a cup may be an option later. |
| You have limited water or drying space. | A cup may be more practical, provided you have clean water and can care for it safely. |
| You prefer familiar products and have easy washing and sun drying. | A reusable pad. |
| You swim, travel or are often out all day. | A cup may suit your routine. |
| You want to use both. | Some people use a cup as their main product and a reusable pad on lighter days or as backup. |
There is no need to be perfect. Moving from disposables to any reusable option is the step that matters most.
Frequently Asked Questions
Is a menstrual cup more eco-friendly than a reusable pad?
In a 2022 life cycle assessment covering France, India and the US, cups had the lowest impact across all indicators, with menstrual underwear second and reusable pads third. The gap between a cup and a reusable pad is smaller than the gap between either and disposables, and it depends on washing and drying habits.
Are reusable pads better than disposable pads for the environment?
Yes. In the research reviewed here, reusable options had far lower impacts than disposable pads and tampons.
Do cloth pads use a lot of water?
They need regular washing, which uses water and detergent. The impact depends on how and how often you wash, and whether you dry them in the sun or in a machine.
Is silicone bad for the environment?
Silicone does not biodegrade, but a cup is small and can last for years, so its impact per use can be low. Using it for its full lifespan is important.
What is a life cycle assessment?
It is a method that adds up a product's environmental impact from raw materials through manufacturing, use and disposal, usually over a set period, such as one year.
Does it matter if I choose organic cotton pads?
Organic cotton can reduce some impacts, but product lifespan and washing and drying practices matter too. The research discussed here found reusable products ahead of disposables, organic or not.
How long should I use a cup to make it worthwhile?
The longer you use it safely and according to its care instructions, the lower its environmental footprint per use can become. Many cups last several years with proper care.
Can I use both a cup and reusable pads?
Yes. Some people use a cup as their main product and a reusable pad as backup or on lighter days.
What is the most sustainable period product overall?
In the 2022 assessment, menstrual cups ranked lowest in impact, followed by menstrual underwear and reusable pads. But the most sustainable product for an individual is one they can and will use comfortably for years.
The Real Takeaway
Both a cup and a reusable pad can be substantial improvements over disposables. The research points to cups having the edge overall, because one small item can last for years and generally needs less water, detergent or energy during use. But the real message is simpler: choose a reusable product you will actually use, and use it for as long as you can.
That is the standard we hold ourselves to at TESSA. The research above looks at menstrual cups as a category, not any single brand, and we would rather point you to independent studies than make up numbers. If you are ready to explore a cup, visit TESSA for beginner guidance and product information.
Sources
- Fourcassier S., Douziech M., Pérez-López P., Schiebinger L. Menstrual products: A comparable Life Cycle Assessment. Cleaner Environmental Systems, 2022. https://doi.org/10.1016/j.cesys.2022.100096
- Hait A., Powers S.E. The value of reusable feminine hygiene products evaluated by comparative environmental life cycle assessment. Resources, Conservation and Recycling, 2019.
- United Nations Environment Programme. Single-use menstrual products and their alternatives: Recommendations from Life Cycle Assessments. 2021.