Menstrual products fall into a few broad categories: disposable options like pads and tampons, reusable options like menstrual cups and cloth pads, and newer hybrids like period underwear and menstrual discs. Each works differently, fits different lifestyles, and comes with its own set of trade-offs in comfort, cost, and convenience.
Pads and Liners
Disposable pads are the most widely used menstrual product worldwide. They stick to the inside of underwear and absorb menstrual fluid externally. They come in a range of sizes, from thin panty liners designed for very light flow or spotting to overnight pads with wings and extra length for heavier bleeding while you sleep. Pads require no insertion, which makes them a common first choice for younger people just starting their periods.
Reusable cloth pads work on the same principle but are made from layers of absorbent fabric, typically cotton, with a waterproof backing. They snap around underwear and can be washed and reused for years. After use, rinsing them in cold water before a regular machine wash keeps them clean and extends their lifespan.
Tampons
Tampons are small, compressed cylinders of absorbent material inserted into the vagina to soak up menstrual fluid internally. They come with or without a plastic or cardboard applicator. A string hangs outside the body for removal.
The FDA standardizes tampon absorbency across all brands, so the label means the same thing no matter what you buy. Light absorbency tampons hold 6 grams or less of fluid. Regular holds 6 to 9 grams, super holds 9 to 12, super plus holds 12 to 15, and ultra holds 15 to 18 grams. Choosing the lowest absorbency that handles your flow reduces the risk of irritation and dryness.
Tampons should be changed every 4 to 8 hours and never worn for more than 8 hours at a time. Leaving one in too long creates a warm, moist environment where bacteria can grow, which in rare cases can lead to toxic shock syndrome (TSS). The incidence of TSS in the United States is estimated at 0.8 to 3.4 per 100,000 people, making it uncommon but serious enough to take the time limits seriously.
Menstrual Cups
A menstrual cup is a small, bell-shaped cup made from medical-grade silicone or rubber. Rather than absorbing fluid, it collects it. You fold the cup, insert it into the vaginal canal, and let it open. Once in place, it creates a gentle suction seal against the vaginal walls that prevents leaks. Most cups can be worn for up to 12 hours before you need to remove, empty, rinse, and reinsert them.
Cups come in different sizes, usually a smaller size for people who haven’t given birth vaginally and a larger size for those who have. One cup lasts several years with proper care, which makes it significantly cheaper over time than disposable products. At the end of each cycle, boiling the cup in water for a few minutes sterilizes it for storage.
Menstrual Discs
Menstrual discs look and function differently from cups, even though both collect fluid internally. A disc is flat and flexible, shaped like a shallow bowl with a thin rim. Instead of sitting in the vaginal canal and using suction, it tucks up into the vaginal fornix, the wider space at the base of the cervix. Because it sits higher and relies on the pubic bone to hold it in place rather than suction, many people find discs more comfortable than cups. Some discs are disposable, while reusable versions made from medical-grade silicone can last for years.
One practical difference: because discs don’t use suction and sit behind the cervix, some can be worn during penetrative sex. Cups generally cannot.
Period Underwear
Period underwear looks like regular underwear but has built-in absorbent layers in the gusset that trap and hold menstrual fluid. The technology typically involves a moisture-wicking top layer, an absorbent middle layer, and a leak-proof outer layer. Absorbency varies by brand and style, with some pairs holding the equivalent of one or two tampons and heavier styles holding significantly more.
On light days, period underwear can work as a standalone product. On heavier days, many people use it as backup alongside a tampon, cup, or disc. Like cloth pads, period underwear is reusable. Rinsing in cold water after wear and then machine washing keeps them functional for a couple of years.
Chemical Safety Concerns
A systematic review published in BJOG found measurable levels of several types of chemicals in menstrual products, including phthalates, parabens, volatile organic compounds, dioxins, and fragrance chemicals. Many of these are classified as endocrine disruptors, meaning they can interfere with hormone signaling at certain exposure levels. The concentrations found in menstrual products are generally low, but the vaginal lining absorbs chemicals more readily than external skin, which is why researchers have flagged this as an area worth paying attention to.
If this concerns you, choosing fragrance-free products is a straightforward first step. Products labeled as organic cotton or made from medical-grade silicone tend to have fewer added chemicals, though “organic” on a label doesn’t guarantee a product is completely free of trace contaminants.
Choosing the Right Product for Your Flow
Your flow changes over the course of a single period and can vary month to month, so many people use more than one type of product. A tampon or cup during the day and a pad at night is a common combination. Period underwear on light days paired with a cup or tampon on heavier days is another practical approach.
If your period is consistently light, thin pads, light tampons, or period underwear alone will likely be enough. For moderate flow, regular tampons, a standard menstrual cup, or a menstrual disc all work well. For heavy flow, super or super plus tampons, a higher-capacity cup, or a disc paired with backup period underwear gives you more security. The goal is always to use the product that matches your actual flow rather than defaulting to the highest absorbency available.
Comfort matters too. Some people dislike the feeling of pads, others find internal products uncomfortable. There’s no single best option. The right product is whichever one you’ll actually use consistently and change on schedule.