Commercial tampons are made by layering absorbent fibers, compressing them into a tight cylindrical shape, and attaching a withdrawal string. The process is more precise and safety-critical than it might appear, which is why tampons are classified as Class II medical devices by the FDA and held to strict performance standards. Understanding how they’re made, whether you’re curious about manufacturing or considering a DIY solution in an emergency, starts with knowing what goes into them and why each step matters.
What Commercial Tampons Are Made Of
The core of a tampon is purified cellulosic fiber, typically cotton, rayon (made from wood pulp), or a blend of both. Rayon used in U.S. tampons is purified through elemental chlorine-free bleaching, a process that eliminates dioxin as a byproduct. Older methods used chlorine gas, which could leave trace amounts of dioxin behind, but no U.S. tampon manufacturer uses that process anymore. Some brands use totally chlorine-free methods, relying on hydrogen peroxide instead.
The choice between cotton and rayon isn’t as significant for safety as many people assume. Lab studies comparing all-cotton tampons to cotton-rayon blends found that cotton tampons produced the same amount of, or more, toxic shock syndrome toxin than blended ones. Cotton alone doesn’t prevent toxin production or absorb the toxin in a way that neutralizes it.
How Tampons Are Manufactured
Factory production follows a consistent sequence. First, fibers are laid down in layers using methods like airlaying (blowing fibers onto a surface to form a sheet) or carding (combing fibers into alignment). Multiple layers are stacked to create an absorbent structure with the right density and thickness.
This layered sheet is then cut into rectangular strips called blanks. Each blank is rolled or folded into a small cylinder, sometimes called a softwind. A withdrawal string is typically wound into the blank during this rolling step, with a knot tied at the free end to prevent it from separating from the fibers.
The rolled blank is then compressed inside a mold. Dies press inward from multiple sides, squeezing the loose cylinder into a firm, compact shape called a pledget. This compression is what gives a tampon its smooth, dense form that can be inserted comfortably and expand gradually as it absorbs fluid. Some tampons get wrapped in a thin cover layer before or after compression. The finished pledget plus its string is the complete tampon product, which then goes into an applicator or wrapper depending on the brand.
Why DIY Tampons Are Risky
People sometimes look up how to make a tampon because they’ve run out, they’re in a remote location, or they want to avoid commercial products. Historically, people have used all kinds of materials: ancient Egyptians used soft papyrus, Greeks used lint wrapped around small pieces of wood, Romans used wool, and cultures across Asia and Africa used paper, vegetable fibers, sponges, and grass. But many historians believe most pre-modern women simply bled freely without any internal device.
The core problem with improvised tampons is infection risk. Staphylococcus aureus, the bacterium most commonly linked to toxic shock syndrome, can thrive when non-sterile material sits inside the vaginal canal. Commercial tampons are manufactured under controlled conditions and tested specifically to determine whether they promote the growth of harmful bacteria. Homemade versions skip all of that.
Fiber shedding is another concern. Loose cotton balls, toilet paper, or fabric scraps can leave small fibers behind, creating irritation or a breeding ground for bacteria. Commercial tampons are compressed tightly enough that they hold together during use and removal. An improvised plug of cotton or cloth won’t have that structural integrity.
What to Use in an Emergency
If you genuinely need a short-term solution and have no access to commercial tampons, pads, or menstrual cups, the safest approach is external rather than internal. Folded clean cloth, layered toilet paper, or a clean washcloth placed inside underwear works as an improvised pad without introducing material into the vaginal canal. This avoids the bacterial risks that come with anything inserted internally.
If you’re drawn to reusable options for environmental or cost reasons, commercially manufactured menstrual cups and reusable cloth pads go through safety testing and are designed for the purpose. These are a better long-term alternative than trying to construct tampons at home.
What Makes a Tampon Safe
The FDA regulates tampons under a specific classification that requires them to meet performance standards for absorbency, material purity, and labeling. Absorbency is measured using a standardized instrument called a Syngina, which simulates fluid absorption under controlled conditions. This is how tampons get sorted into categories like light, regular, super, and super plus, each corresponding to a specific range of fluid absorption in grams.
Standardized absorbency labeling exists because using a tampon with higher absorbency than you need increases the risk of toxic shock syndrome. The tampon stays drier longer, which changes the vaginal environment in ways that can promote bacterial toxin production. This is one reason the FDA treats tampons as medical devices rather than simple consumer goods: the margin between safe and unsafe depends on precise material behavior that’s difficult to replicate outside a factory.
Commercial tampons also cannot contain added antimicrobial agents or fragrance materials under the standard unscented classification. What you’re getting is purified fiber, a string, and nothing else. That simplicity is intentional, and it’s nearly impossible to match at home with materials that haven’t been tested for biocompatibility or bacterial interaction.