Which menstrual underwear should you choose for your flow?
Choosing the right period underwear for your flow is essential. Using period underwear that isn’t suited to your flow can lead to some unpleasant consequences. The underwear will get saturated too quickly and you could end up with leaks.
There are several factors to consider when choosing the best period underwear. The intensity of your menstrual flow is one of the main factors, if not the most important. Louloucup is here to guide you and help you make the smartest, most thoughtful choice for a smooth and hassle-free experience with your period lingerie.
A few valuable tips for choosing the best period underwear
Your first purchase of period underwear might feel uncertain. That’s normal. It’s not always easy for women to know exactly how heavy their flow is.
Here are a few tips to help you choose:
- Try to estimate or remember how many times a day you need to change your disposable menstrual products (pads or tampons). Is it once a day, two or three times, or even more?
- Do you feel like your period protection gets saturated quickly? Is your flow slow, heavy, or very heavy?
- Which disposable products do you usually use? Regular pads or super absorbent tampons +++? That will help point you in the right direction.
- If you’ve ever used a menstrual cup, you’ve probably gotten a very accurate idea of your menstrual flow. For example, over half a day, was the menstrual cup barely filled or halfway? Did you feel the need to empty it often? How frequently?
- Do you have a copper IUD? The IUD (Intrauterine Device) is a highly effective contraceptive, but it can make your periods heavier and more intense.
- Have you ever experienced leaks or stains on your clothes?
These various observations can greatly help you choose the right period underwear. Next, do a comparison of the best period underwear. This will help you narrow down your choice to the perfect pair for you.
A menstrual flow that isn’t steady
Important to know: menstrual flow isn’t the same on the first and last days of your period. For many women, it peaks before tapering off. Over the five to seven days of bleeding, the pattern often looks like this:
- two calm days to start, then the intensity gradually increases,
- two heavy days with a stronger flow, your lower belly is more bloated, and discomfort or pain may be more noticeable,
- Then two days where the flow gradually slows down.
Also, your flow isn’t as heavy during the day as it is at night. At night, when you’re lying down and not moving, your flow slows down and is much lighter than during the day.
These differences should be taken into account when choosing the best period panties for your flow and your needs. Even if you have a heavy flow, consider buying one or two medium flow period panties for the end of your cycle, for example. In short, try to plan ahead as much as possible!
A closer look at the different types of menstrual flow
Menstrual flow is categorized by its intensity. This makes it easier to offer products that truly fit users' needs. Brands and manufacturers can therefore offer cups, panties, and swimsuits with varying absorbency levels to suit each user's menstrual flow.
Intensity and consistency are also two different things. Is your flow very watery or thicker, with clots? Check out our blog post How to Know Your Menstrual Flow to learn more about this topic and get to know your body better.
Light menstrual flow
A light menstrual flow is considered to be less than 30 ml of blood over the entire period. You only need one tampon per day. Your pad is barely marked throughout the day. At night, lying down, you hardly move, so a panty liner is usually enough. A light flow period underwear will do the job perfectly.

Good to know: light menstrual flow is called oligomenorrhea.
Average menstrual flow
A medium or normal flow is about 30 to 50 ml over the course of your period. 2 to 3 tampons are usually enough for one day. A good sanitary pad can easily last half a day without issues.
Heavy flow
A heavy flow is considered to be between 50 and 70 ml of blood. Heavy flow requires changing your protection regularly for better comfort and to avoid saturation. This means using at least 5 tampons in a day.
To learn more, feel free to check out our article on this topic: What causes a heavy menstrual flow?
Hemorrhagic flow
When your flow is fast, heavy, and intense, it’s considered hemorrhagic and exceeds 70 ml of blood. In medical terms, this is called menorrhagia. It’s most often caused by having a copper IUD. You’ll likely feel pretty tired and need to use the bathroom very frequently to change your protection (at least every two hours).

Louloucup: quality period underwear for every menstrual flow!
Where can you buy the best French period panties? On Louloucup, of course! Depending on your menstrual flow, choose comfortable, reliable, stylish, and organic panties for finally stress-free periods. Our guarantees? Organic cotton panties and free shipping in France and Europe.
Period panties for light flow
The organic cotton period underwear for light or low-flow periods is the ideal replacement for disposable, single-use panty liners. Menstrual thongs, menstrual tangas, or light flow lace period panties are also effective for managing discharge during ovulation and other vaginal secretions throughout your menstrual cycle.
Check out our light flow period panties: the Chloé model and the Mia model.
Read more on our blog: Is period underwear a good idea for managing light flow and spotting?
Period underwear for medium flow
Louloucup’s period panties for medium flow can absorb the equivalent of 2 to 3 tampons depending on the model. These invisible and stylish period panties, available in black or colors, get rave reviews!
Check out the Naomi, Margot, Ella, Lily, and all the others!
Period panties for heavy or very heavy flow
Louloucup offers the most absorbent styles on the market! Super reliable, super absorbent, super comfortable—the range of heavy flow period underwear or very heavy flow is both feminine and highly effective. Plus-size, high-waisted, seamless, lace—Louloucup has something for everyone!
Check out all our heavy flow period underwear: the Clara style, the Mathilde style, the Liv style, and many more!
Also, check out our blog: How to manage heavy flow with period underwear?










