The best period underwear for your flow
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Time to read 8 min
Are you convinced that period underwear is THE perfect menstrual protection? You’re absolutely right! This ultra-absorbent, washable, hygienic underwear has everything going for it. But how do you choose the right one? What are the best period panties? Which period underwear should you pick exactly? Which model will best match your expectations, your needs and especially your menstrual flow?
What are the best period panties for your flow?
Between discretion, comfort and protection, there are plenty of options—but the choice isn’t always easy!
Discover our selection created for you, tailored to every type of period. The period panties we mention below are suitable for both day and night.
They’re a perfect replacement for disposable pads and tampons. Suitable for all types of periods and all flow intensities, discover our different categories: light-flow thongs, medium-flow briefs, or heavy-flow period panties for abundant flow, for safe, healthy protection that finally lives up to your needs!
In this article:
🩷 4 categories of period panties depending on your flow At Louloucup, menstrual underwear for every taste... 🩷 Period underwear for light flow Chloé for light flow 🩷 Menstrual panties for medium flow 🩷 Period panties for heavy flow 🩷 Menstrual panties for very heavy flow 🩷 In short: which period panties should you choose? Our other period panties you don’t want to miss: Best period underwear FAQ To learn more ... Are you looking for hygienic, healthy, practical and affordable alternatives to tampons?
🩷 4 categories of period panties depending on your flow
At Louloucup, we offer several styles of period panties or period underwear. They are grouped into categories based on the intensity of your menstrual flow. In other words, not all of our menstrual panties have the same absorbency level.
Not all period panties can absorb a very heavy menstrual flow. It depends on the absorbent area sewn inside the panty: the absorbent layer. It depends on whether it is wide or rather narrow, and whether it is double or even triple‑layered.
You’ll find panties and menstrual thongs for what’s considered a light menstrual flow. They’re also perfectly suitable for vaginal discharge and light spotting between periods. These styles have an absorbency equivalent to 1–2 tampons.
Next come period panties for so-called moderate flow, or normal/medium flow. These have an absorbency equivalent to between 2 and 3 tampons.
Heavy‑flow period panties have an extended absorbent layer that can handle an intense menstrual flow. These period panties can absorb the equivalent of 4 to 5 tampons, depending on the style.
Finally, the last category of period underwear: period panties for very heavy flow. These have double protection and an extended absorbent area that rises high at the front and back of the panties. Their absorbency is equivalent to more than 5 tampons.
At Louloucup, menstrual underwear for every taste...
🩷 Period underwear for light flow
The light-flow menstrual thong is making its way into our daily lives with ease. Designed for light period days or occasional spotting, it’s the perfect alternative to standard pads and especially to disposable, plastic-filled panty liners!
Chloé for light flow
Discover the Chloé menstrual thong by Louloucup, specially designed for worry-free comfort.
Designed for light flows, this period protection, equivalent to 1 to 2 tampons, gives you unparalleled freedom of movement. Its breathable, soft fabric hugs your body without constriction. Ideal for spotting or as a backup to other products, it fits perfectly into your period routine. Let yourself be tempted by this cool, feminine, simple and elegant little protection!
The fitted Chloé thong from Louloucup makes no compromises between absorption, discretion and comfort.
Its strong points:
- Made from organic cotton and elastane, it offers exceptional softness.
- Available from XS to XXL, so every woman can find her perfect fit.
"It’s my favorite style for the beginning and end of my period! I love it! No leaks and great absorption all day long. And the design is really gorgeous and comfortable to wear." – Émilie T.
💫 For light flows, you can also go for the Mia lace period panty in black lace, ultra light and discreet.
🩷 Menstrual panties for medium flow
Moderate-flow period panties are perfect for your heavier days. They offer reliable all-day protection thanks to their enhanced absorbency. Let yourself be surprised by their long-lasting comfort and optimal effectiveness. Louloucup’s Lucie period panty is a perfect example of this versatility.
Designed to hold the equivalent of 2 to 3 tampons, these products provide 8 to 10 hours of uninterrupted comfort. Their patented technology locks in the flow effectively without causing unpleasant dampness. Discover our moderate-flow collection for a calm, worry-free daily life.
Lucie for medium flows
The Lucie by Louloucup model impresses with its enveloping comfort and consistent effectiveness. Designed for moderate, normal and medium flow, this brief in organic cotton (95% organic cotton, 5% elastane) adapts to all your movements. Its discreet design and solid color make it a precious ally. Created with love, it combines softness and performance.
Absorbs the equivalent of 2 to 3 tampons, created at Portugal, with flat seams , available from size XXS (in teen version, equivalent to a US 2) up to XXL size (equivalent to size 44), Lucie is a real favourite!
"I’ve just tried it and it’s great! The fit is snug, it’s comfortable to wear and effective! I’m thrilled with this purchase." – Amélie B.
💫 For medium flows, we also recommend Margot, Ella, Gaby or even Naomi!
🩷 Period panties for heavy flow
To cope with heavy periods, you need reliable, extensive and trustworthy protection. With period underwear for heavy flow, you can feel calm and confident, knowing you’ll stay dry for many hours. No leaks, no damp feeling—you’re comfortable all day or all night long.
Fanny for heavy flows
Black, lacy, discreet and pretty, Fanny absorbs heavy periods. Available from size XS to 3XL, Fanny has an absorbent area that comes up high at the back so you can enjoy a peaceful night’s sleep.
The period panties for heavy flow are designed for teens and women with a fairly strong period, or for the specific day when your discharge is more intense.
Designed to hold the equivalent of 3–4 tampons, these products are suitable for heavy bleeding.
💫 For heavy flow, don’t forget the Simone heavy-flow period underwear!
🩷 Menstrual panties for very heavy flow
To handle very heavy, extremely abundant flows, hemorrhagic bleeding caused by a copper IUD, lochia or light urinary leaks, very heavy-flow period panties are perfect!
Right now you’ll find 5 Louloucup styles with an absorption capacity equivalent to 4 or 5 tampons. These panties have an extended absorbent area that is also doubled (which explains the slightly higher price).
You can go about your day with total peace of mind, even with a heavy flow.
Clara for very heavy flows
With advanced absorbent technology, the Clara high-waisted period panties for very heavy flow hold up to 12 hours of intense flow. Its double absorbent layer at the front and back is equivalent to 5 standard tampons, giving you long-lasting freedom. Ideal for heavy bleeding, it adapts to your body shape.
Available from XS to 5XL, the Clara style from Louloucup suits all body types. Priced at €33.90, it’s a smart investment for calmer, more comfortable periods. The high waist and full-coverage cut provide perfect support, whether you’re lying down or on the move.
Did you know? Clara and Mathilde were voted best period panties in 2025 by the newspaper 20 Minutes!
"I have very heavy periods. Today I wasn’t working, so it was the perfect time to try this very heavy‑flow panty. I acted as if I were at work and my panty held up for 10 hours without leaking. I’m sold. I’m going to order more." – Chrystelle L.
💫 For very heavy flows, you’ll also find what you need with Mathilde, Jade, Leo and Liv!
🩷 In short: which period panties should you choose?
Our final tips for choosing the best period panties:
If your periods are normal and not very heavy, a menstrual thong and several medium-flow period panties may be enough. If you want total peace of mind and tend to stress about potential leaks, don’t hesitate to add a heavy-flow style to your basket. That way you’ll enjoy perfectly dry nights.
If you have light discharge, spotting or various types of vaginal discharge, then light-flow period underwear is just what you need. It’s the perfect replacement for a panty liner.
If you use a copper IUD, heavy- and very-heavy-flow period panties will be the best option to handle your very intense flow!
If you’re sporty and stay active even during your period, we recommend seamless period panties for very heavy flow (Liv is perfect).
If you experience light urine leaks, very heavy-flow period panties make excellent protection. You’ll stay dry for hours!
If you’re a new mum, in the middle of your postpartum recovery and dealing with various types of discharge, our postpartum range is made for you!
Our other period panties you don’t want to miss:
Best period underwear FAQ
Why is my period flow getting heavier?
Several factors can explain an increase in menstrual flow, including hormonal changes such as those occurring at puberty or perimenopause. The presence of fibroids or polyps in the uterus can also cause heavier bleeding.
It’s important to see a healthcare professional if you repeatedly experience extremely heavy or hemorrhagic periods. Additional tests may be needed to detect any underlying issues.
How can I make my periods less heavy?
Heavy periods can be influenced by various factors. Hormonal contraceptive methods, such as the pill, the ring or the hormonal IUD, can reduce how heavy your periods are by affecting estrogen production. A low level of estrogen can also cause light periods.
It’s important to see a doctor, gynecologist or midwife if your periods are excessively heavy or hemorrhagic, as treatment is often needed and additional tests may be required to detect any underlying issues.
Why does my period underwear smell bad?
Menstrual panties can smell bad mainly because of insufficient or improper washing. Poor care encourages bacterial buildup. It’s essential to rinse the panties in cold water after use and machine-wash at 30°C without fabric softener or bleach.
The use of unsuitable products, such as fabric softeners or overly aggressive detergents, can also clog absorbent fibers. If the odor persists, a bicarbonate bath or soaking in white vinegar can help. Also, check the wear of your panties.
Camille
Rédactrice depuis plusieurs années pour Louloucup, j'aime papoter aussi bien culotte menstruelle que remèdes de grand-mère pour soulager les douleurs de règles ! Je partage chaque semaine mes coups de cœur et mes inspirations avec un seul objectif : vivre des règles enfin sereines ! 🩷
