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The Hidden Environmental Cost of Disposable Pads – Papaya Blood-Solidifying Pads

The Hidden Environmental Cost of Disposable Pads

by Tanya Desai in Periods and Environment

Every month, hundreds of millions of people reach for a sanitary pad. It gets used, discarded, replaced. Most people never stop to consider where it goes after that, or what it was made of in the first place.

The Scale of the Problem 

A person who menstruates will use somewhere between 5,000 and 15,000 pads or tampons over a lifetime. Globally, roughly 45 billion disposable menstrual products get discarded every year.

Most end up in landfill. Some get flushed despite the instructions on the packet, where they contribute to sewer blockages and eventually ocean plastic contamination. Very few get recycled, because the composite, multi-material construction of most pads makes them hard to process through standard recycling streams.

What's Actually in a Conventional Pad

A standard disposable pad contains synthetic polymers and petroleum-derived plastics like polyethylene and polypropylene in the top sheet, backsheet, and wings. These don't biodegrade and can sit in landfill for 500 to 800 years.

The absorbent core usually combines wood pulp with superabsorbent polymers, synthetic crystals, and sometimes a plastic film interlayer. The adhesive strips are synthetic polymer hotmelts. Each pad is individually wrapped in polyethylene film, then packed into a plastic outer bag.

The generic pad is close to 90% plastic by composition. It touches your body for a few hours and then takes centuries to go away.

Why "Biodegradable" Claims Need Scrutiny 

A growing number of pad brands have introduced products labelled "biodegradable" or "eco-friendly." Those claims deserve a closer read.

True biodegradation in landfill conditions needs oxygen, moisture, and microbial activity. Most landfill environments are anaerobic, because material gets compacted and covered quickly. A product that biodegrades under ideal compost conditions may barely decompose at all in an actual landfill.

Many "eco" pads also replace only the synthetic top sheet with a plant-based material, while keeping a polyethylene backsheet and synthetic core components. The overall plastic content ends up only marginally different from a conventional pad.

Papaya took a different approach. Plastic in period products carries an environmental cost, but it also exposes the people wearing it to toxins, chemicals, and microplastics directly. Papaya's pads have no plastic in any layer. The top sheet is organic cotton and cellulose, the core runs on a patented natural biocoagulant, and the base is a biodegradable backsheet. Packaging, primary and secondary, is fully paper-based. The pads break down in roughly 180 to 240 days under composting conditions, and they also break down in landfill settings, so they don't need specific conditions to decompose fully. That mattered because most waste never reaches an industrial composting facility. Papaya designed the pad to degrade wherever it ends up, including buried in soil.

What actually cuts environmental impact is a combination of genuinely higher bio-based content across every layer, less overall material per pad, responsibly sourced inputs, minimal packaging, and transparency about the product's lifecycle. Papaya's construction covers all of these, and the company publishes what the pad is made of rather than leaning on vague sustainability language.

The period product industry generates billions of units of composite plastic waste every year. Better material choices are part of the fix. They start with knowing what's actually in the products on the shelf.

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Why Plastic-Free Period Care Matters

Why Plastic-Free Period Care Matters

When people think about plastic pollution, they picture water bottles and packaging. Period products rarely come up in that conversation. They should. The average sanitary pad is roughly 90% plastic, and tens of billions get discarded every year. The environmental case against period products is clear enough. There's a second case, less discussed, about what all that plastic means for the person wearing it. What wearing plastic pads really feels like: What "Plastic-free" Actually Means in a Pad A generic menstrual pad has plastic in nearly every layer. A polypropylene or polyethylene nonwoven top sheet. A solid polyethylene backsheet. Polyethylene wings. A synthetic nonwoven acquisition layer. Individual polyethylene wrappers. A plastic outer bag. Even the absorbent core often runs on superabsorbent polymer crystals, which are synthetic and petroleum-derived. When you read "organic cotton pads" or "natural pads" on packaging, check whether only the top sheet changed. Many products swap out the single layer touching your skin while keeping a polyethylene backsheet, synthetic adhesive, and plastic wrapper. The overall plastic content barely moves. Genuinely plastic-free period products require rethinking materials across the entire product, not one layer of it. Pads like Papaya have no plastic anywhere: organic cotton and cellulose for the top layers, a natural biocoagulant in the core, a biodegradable backsheet instead of polyethylene. No microplastics, no landfill plastic, no synthetic polymer chemistry anywhere in the construction. The Health Case  Plastics aren't inert. Manufacturing and degradation involve plasticisers, stabilisers, and breakdown products, some of them endocrine-disrupting chemicals that affect hormones and reproductive health. Bisphenol A, phthalates, and dioxins from chlorine bleaching have all turned up in studies of period product composition as hormone disruptors. The vulvar area absorbs substances more readily than most skin. Brief contact with a material that releases trace chemicals is one thing. Wearing a pad for six to eight hours, several days a month, for decades, is a different exposure profile entirely. The regulatory baseline of "approved and safe" is a low bar. Papaya works to a different one: nothing in the pad that has no business being near the body's most hormonally sensitive tissue. The Environmental Case  In India alone, an estimated 12 billion menstrual products get discarded every year. Most end up in landfill or in unmanaged waste streams. In many parts of the world, period product waste gets burned, releasing dioxins and other toxins into the air. Period products can't be easily recycled as the composite multi-material construction and the biological contamination rule that out. There's no mainstream infrastructure for processing them, and every conventional pad ever made still exists somewhere, given a roughly 500-year lifespan. Biodegradable pads like Papaya's break down in approximately 180 to 240 days under composting conditions. They also break down in landfill settings, degrading even when simply buried in soil without controlled composting conditions. That matters because most period product waste ends up in landfill, not in compost facilities built for decomposition. A product that only biodegrades under ideal industrial conditions isn't solving the actual disposal problem. What Plastic-free Looks Like in Practice Papaya's construction with organic cotton, cellulose, natural biocoagulant, biodegradable backsheet, no fragrance, no chlorine describes what plastic-free means across a whole product, not just a top sheet. Choosing these products doesn't mean accepting weaker performance. Papaya pads are built for heavy and overnight flow. The performance comes from biology, not bulk, and the construction leaves nothing behind for the planet to deal with in the year 2600. Period care has long been treated as a private matter. The environmental footprint of billions of plastic pads discarded every month is a collective one. So is the question of what materials belong in a product worn in intimate contact with the body for years. Both questions are worth asking, and they're not really separate.

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Our atmosphere and global warming

Our atmosphere and global warming

It is no secret that most human activity introduces greenhouse gasses into the atmosphere. Transportation, agriculture, manufacturing…   The contribution of pads may not be a large part of this, but as it stands today – EVERY LITTLE BIT COUNTS!   We’re reducing the climate load of our pads in all stages of their life-cycle, from manufacturing to post-disposal decay.   Post-disposal decay:   Composting evaluation station comprised of an A/B tumbling composter, a flat “landfill simulator” tray, and a traditional home composting bin.   We made sure that our pads are not only plastic-free, but are able to compost if they reach a composting facility. We are aware that most pads will end up in simple landfills (where they usually get buried too quickly, preventing proper aerobic composting from take place) but if we do our part, we know that at least those pads will end up composted, which means they have a much reduced impact on the atmosphere.   We are working on even making them home-compostable! This is a more difficult challenge – anyone who’s composted at home knows that some compostable materials (think Avocado peels) take longer to compost, and we also know that home composting bins are relatively small… Stay tuned on this!   We are working on collaborations with composting companies – stay tuned on that too.   Manufacturing:   Did we mention that our core material is bio-sourced? Most plastics are by products of the petroleum industry, and have a large climatic footprint. Ours doesn’t.

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Our local watershed

Our local watershed

The local watershed is where we have the largest physical impact on the environment. Menstrual pads by their very nature are disposable products, and every menstruator uses approximately 20 of them per month. That’s a big fraction of the dry waste that they produce. How can we do better? Papaya pad, placed in a rapid decomposition (not composting!) machine. We declared war on plastics embedded in our product. Most pads use a super-absorbent polymer (SAP) as their core layer, because frankly, nothin absorbs better – as evidenced by countless TV commercials showing how much blue liquid they can soak in. (Seriously, who bleeds blue water?!) The problem with plastics is that once they hit a landfill and start disintegrating (a process that can take several years) they decompose into “micro-plastics” which is a generic term for fragments of plastic so small we can’t even see – but are chemically active, form compounds with toxins that are abundant at landfills, and then end up either in the watershed or in the local food chain. They also often leach out toxins that originate from the plastic itself, such as Phthalates. At Papaya, we took a different approach. Instead of using a super-absorber, we use a combination of a cotton fiber absorber and a natural bio-sourced coagulant (our secret sauce!) that transforms liquid blood into a coagulated paste – using our bodies own natural mechanism! The result of this innovation is a core layer that sucks in blood and retains it even if it is later squeezed! Natural, safe, and environmentally friendly! (Consequently, btw, our pads are only good for blood. If you’re menstruating semi-clear blue liquid, we may not be able to help you. 🙂 ) What remains of a Papaya pad (right) and a plastic-containing commercial pad (left) after two cycles in the decomposition machine. With the core layer taken care of, we also eliminated plastics from the front and back sheets (made of all-natural fibers) and made sure even our packaging and release sheet are plastics-free. The best way to make sure you don’t pollute the environment with plastic compounds? Don’t have plastics in your product to begin with! So every month, know that you’ve eliminated about half a kilogram of plastic-based trash. Did we stop there? Of course not! Every manufacturing process, including our own, creates waste. (Think of the leftovers when you’re cutting shapes out of a whole sheet of paper) – and the waste can be comparable in weight to the entire product! More on this later, but our waste goes directly to a composting facility, so in fact your monthly savings are closer to a full kg of plastic based trash!

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