How often should you change period underwear: a complete guide
Period underwear is a comfortable and reliable menstrual hygiene option. It absorbs menstrual flow and protects against leaks—no pads or tampons needed. One of the most common questions people ask when switching to period panties is: how often do you need to change them?
🩸It depends on your flow
How frequently you should change menstrual underwear depends mostly on how heavy your flow is. On each product page, we indicate the estimated absorbency of the model—usually between 2–3 or up to 4 tampons’ worth.
Our period panties are designed to be worn on their own, without the need for additional protection. In most cases, they’re enough to keep you dry and secure throughout the day.
For moderate flow, you can typically wear absorbent briefs for up to 10–12 hours. On heavier days, we recommend changing them after 6–8 hours—even with high-absorbency models.
If the gusset starts to feel damp, you notice odor, or see spotting around the seams, it’s time for a fresh pair.
Can you wear them with other products?
Period underwear is made to work as a standalone solution. However, if you have a very heavy flow, or you’re new to reusable options and want added peace of mind, you can wear them together with a menstrual cup or tampon.
Some people prefer this combo on their heaviest days or during the first day of their cycle. It’s not required—but it’s an option.
🌙 Can you wear them overnight
One of the biggest advantages of leakproof panties is that they’re great for sleeping. Full-coverage models are especially effective, as they stay in place and provide protection even while lying down.
Just like during the day, we don’t recommend wearing them for longer than 12 hours at a time.
How many pairs do you need per day
Most people find that two pairs per day is ideal—one for daytime and another for the evening or overnight. If your flow is heavier in the first days, you might need three or more per day.
📅 How many pairs for a full cycle
To get through your entire period comfortably, most users need:
- 3–5 pairs for a regular cycle with moderate flow
- 5–7 pairs for longer or heavier cycles, or if daily laundry isn’t possible
Reuse and care
After wearing, rinse your menstrual underwear in cold water, then hand wash or machine wash at up to 40°C (104°F).
You can dry them on a drying rack, a radiator, or in a tumble dryer—as long as the temperature stays under 40°C.
Do not iron your period panties. The heat may damage the waterproof membrane inside, reducing their leak protection.
Even if a pair doesn’t seem fully used, it’s best to replace them regularly to maintain proper hygiene and comfort.
🧾 Final thoughts
You can wear period panties for up to 12 hours, depending on your flow and the absorbency level of the model. They’re specifically designed to be worn without backup products like pads or tampons. In most cases, that’s all you need. Pairing them with other protection is possible—but more of a personal choice than a necessity.
To feel confident every day of your cycle, choose the right absorbency, listen to your body, and have a few pairs on hand. With the right care, period underwear can make your period easier, more comfortable, and worry-free.
