Le guide de la
culotte
menstruelle
After decades of disposable hygienic products, it’s hard to change your habits!
Many women have questions about alternatives to tampons and pads: washable, reusable, sustainable, and eco-friendly menstrual products. Whether it’s a period swimsuit, a menstrual cup, or period panties, these new accessories are revolutionizing how we deal with periods!
Thanks to these products, we no longer produce waste (#zerowaste), we’re more responsible (no more plastic, yes to organic cotton), we consume less and better (a washable product lasts for years, unlike a tampon that you use only once), and we save money (no more buying a pack of pads at the supermarket every month).
At Louloucup, you'll find organic cotton period underwear, super reliable menstrual swimwear, and ultra-soft menstrual cups. Louloucup is the French brand for quality menstrual products and items. The range is diverse and varied, catering to everyone.
Want to learn more about period underwear? Are you very interested in this practical, eco-friendly alternative to pads or tampons? Do you have questions about its price, care, or lifespan? Do you have a light, medium, heavy, or very heavy menstrual flow and are looking for protection that’s reliable, discreet, comfortable, and healthy? Washable period underwear is the answer!
Find all the answers to your questions about period panties in this super comprehensive guide.
In this guide, you’ll find:
I. Sustainable menstrual protection: the menstrual panty
1- Washable hygiene products: an intimate and feminine revolution
2 - The period panty or menstrual panty, how does it work?
3 - Panty, boxer, thong: menstrual underwear for everyone!
II. Louloucup period panties: affordable prices and impeccable quality
1 - The composition of Louloucup menstrual panties
2 - Affordable Louloucup menstrual panties: low prices all year round
3 - How many menstrual panties do you need for one cycle?
III. Choosing your period underwear: our top categories and top products
1 - Choose your period underwear based on your flow
2 - Our top categories
3 - Our top products
IV. Sustainable menstrual protection: why choose period panties?
1- Healthy period panties to protect your health
2 - Ultra-soft period panties for maximum comfort
3 - Affordable period panties bundle to save money
V. Caring for period underwear: how should you care for your period panties?
1- Rinse with water
2 - Gentle wash
3 - Air dry
VI. Final thoughts… period underwear: your best choice!
VII. Want to learn more…
The sustainable menstrual protection: the periodpanty
1- Washable sanitary products: an intimate and feminine revolution
In recent years, the menstrual protection market has changed a lot. Teens and adult women didn’t have many choices: it was tampons and pads! Then, after the scandal about what’s in tampons and pads, new brands and manufacturers started offering alternatives. Effective feminine care options we can actually trust, that are:
1.
in certified organic cotton
2.
made of healthy fabrics,
non-toxic and tested
3.
without any
silver nanoparticles
4.
with absolutely no risk
of irritation or allergy.
Washable and therefore reusable protection products have arrived!
They are now a real and very reliable alternative to disposable tampons, pads, and panty liners.
2 - Period panties or menstrual underwear, how does it work?
It’s a beautiful piece of elegant and comfortable lingerie. The only difference is that it absorbs period blood very effectively. A highly absorbent membrane is sewn into the center of the panty and, depending on the model, extends from the front to the back.
This technical fabric membrane has a high absorption capacity. It captures and locks in flow without leaving stains or feeling damp. Also, with period panties, you don’t get bad odors (the fabric breathes, unlike plastic pads).
This technical fabric membrane has a high absorption capacity. It captures and locks in your flow without leaving traces or any feeling of dampness. Plus, with period underwear, you won’t experience bad odors (the fabric breathes, unlike plastic pads).
Day or night, you can wear a period panty anytime, anywhere for hours without worrying about leaks or stains.
3 - Panty, boxer, thong—there’s period underwear for everyone!
Today, this revolutionary period underwear comes in thongs, tangas, and even boyshorts, so every woman can find her perfect fit! From light to very heavy flow, period panties have a very high absorbency, preventing leaks and keeping you dry all day or all night.
At work, at the gym, or at home, day or night, under jeans, a dress or your workout leggings, period panties, thongs, tangas, or boxers can be worn comfortably and with confidence.
Available in all sizes and for every type of period, this hygienic and intimate protection is for everyone: teens with their first periods, students, athletes, working women, new moms (lochia and postpartum), or women in perimenopause.
Worried about leaks? Have a very heavy flow? You can easily pair your period underwear with a menstrual cup to prevent any leaks. However, we don’t recommend wearing the cup at night.
Louloucup period panties: affordable prices and impeccable quality
1- The composition of Louloucup menstrual panties
At Louloucup, we offer beautiful period panties, made to the highest quality and extremely comfortable. The majority of our production takes place in Portugal 🇵🇹. We're proud to produce 80% of our products in Europe. Our manufacturing workshops are audited for worker rights protection by trusted third-party organizations like BSCI or AMFORI, committed to upholding human rights at work.
👉Learn more about the AMFORI BSCI standard
All fabrics used for our panties are certified Oeko-Tex 100 and approved by various government authorities. They are safe for your health and the environment. The Oeko-Tex 100 label guarantees fabrics free from harmful substances, including silver nanoparticles. The composition is regularly tested by independent labs.
🔗Learn more about the OEKO-TEX® STANDARD 100 label
Our panties are made with three layered technical fabrics to ensure effective absorption without feeling wet, adapted to every flow. Result: no unpleasant surprises, just comfort and security, all day long.
2- Affordable Louloucup menstrual underwear: low prices all year round
At Louloucup, there’s no compromise between price and quality! We offer quality period underwear and menstrual products, well-made and carefully finished at competitive prices. What’s the real plus at Louloucup?
Definitely our custom bundle offer. The more products you add to your cart (any of them), the lower the price of each item gets. It’s automatic and your wallet will thank you! A pair of panties at €28.90 drops to €22.90 each if you select 5! Perfect to be well equipped for your next period!
Plus, you can always find a promo code... Who knows? We also run regular offers, so stay tuned!
Save money with our volume discounts
The more you buy, the lower the price on all our products
2- How many panties do you need for one menstrual cycle?
Since you need to rinse and wash your used period panties, it’s necessary to have several menstrual panties during your period. That’s why Louloucup offers packs at great prices.
To get started, we recommend at least 3 menstrual panties. If you have a heavy flow, we suggest starting with 5 menstrual panties. This is necessary to ensure optimal comfort.
Period panties can protect you for up to 12 consecutive hours. You need to change your period underwear at least twice a day. However, depending on your flow, you may need to change your menstrual underwear more often (up to three times, especially for heavy and/or hemorrhagic flows).
Choosing your period underwear: our top category and our top prooducts
1 - Choose your period panty according to your flow
Every woman is different and flow can change over the years and with birth control. That’s why it’s best to have different styles so you’re always well protected throughout your cycle.
- At the beginning and end of your period, when your flow is light, a period thong is often enough.
- On day 2 or 3, when your flow is heavy and you’re gearing up for a long day out or a workout, confidently slip on a heavy flow period underwear or even extra heavy flow.
- If your flow is light to medium, a regular flow period underwear should be enough for you.
2 - A period panty: our top category
- Heavy flow period panty: or very heavy flow: highly appreciated for its exceptional absorbency, this type can replace several tampons (up to 5!). These heavy flow period panties are perfect for handling intense periods or heavy bleeding caused by a copper IUD. We love the Jade and Mathilde styles!
- Medium flow period panty: holds the equivalent of 2 to 3 tampons. With a variety of cute options, our medium or normal flow range has something for everyone! We love the Naomie, Ella, and Margot styles!
- Light flow period panty: this lightweight lingerie range absorbs the equivalent of 1 to 1.5 tampons. Thongs and lacy briefs are ideal for the beginning and end of your period, spotting, and vaginal discharge (white discharge, brown discharge, etc.). We love the Mia style!
- Seamless period panty: seamless and completely invisible, the seamless panty is perfect for anyone looking for total discretion! We love the Gaby style!
- Teen period panty: redesigned for smaller sizes, some of our Louloucup styles are available in XXS/Teen sizes. A great way to try reusable protection. We love the Lucie style!
- Postpartum period panty: whether you're pregnant or have just given birth, expecting and new moms need products they can trust. Louloucup offers a perfect range for absorbing discharge, light bleeding, and lochia. We love the Leo panty!
- Plus size period panty: Louloucup is for everyone, no exceptions! From 2XL to 5XL, discover or rediscover our favorite styles in plus sizes. We love the Fanny style!
3 - Our top products
At Louloucup, we offer a wide range of models that look just like traditional lingerie. We strive to provide beautiful panties with impeccable quality, as well as a variety of cuts, fabrics, and sizes to suit every taste.
Our panties deliver on their promises and adapt to your cycle and your menstrual flow.
Here’s our top 3 best Louloucup period panties:
1- The Clara period panty : the high-waisted period panty for very heavy flow. Unbeatable, iconic, and absolutely stunning—Clara is fabulous. High-waisted, it’s very elegant. Super absorbent, it holds the equivalent of 5 tampons. Available from size XS to 5XL, it’s made for all body types. And don’t just take our word for it—20 minutes named it the best period panty of 2025.
2- The Liv menstrual panty: the completely invisible black menstrual panty. A favorite for many of our customers, the Liv model is ultra-absorbent (holds the equivalent of 5 tampons), absolutely invisible(zero seams), and super comfortable (well-fitted, doesn't pull, doesn't dig in).
3- The Chloé menstrual thong : for light flow, spotting, and vaginal discharge, we have the perfect alternative to polluting, disposable panty liners: the Chloé period thong by Louloucup. Black, lace, lightweight, and discreet, it's perfect (and sexy)!
Sustainable menstrual protection: why choose period panties?
1-Healthy period underwear to protect your health
Many people decide to switch to period panties after learning about the risks associated with the ingredients in traditional disposable products.
Indeed, several studies have revealed the presence of concerning substances in tampons and pads: carcinogenic agents, endocrine disruptors, pesticide residues, and even hydrocarbons. These products are in direct contact with mucous membranes, a particularly sensitive area of the body. It is therefore essential to choose safe and non-toxic intimate protection.
Tampons are also regularly implicated in cases of toxic shock syndrome (TSS), a serious but rare infection (the bacterial strain responsible is present in only 1% of women). Prolonged use of internal protection can encourage the development of these bacteria.
On the other hand, menstrual underwear provides external protection that is soft, breathable, and has no known health risks. A 2022 study by ANSES (the French Agency for Food, Environmental and Occupational Health & Safety) confirmed the safety of menstrual underwear, as long as they are well designed.
🔗 Read ANSES's analysis on menstrual underwear
At Louloucup, we pay special attention to the safety of our fabrics. All our underwear is free of silver nanoparticles, and their components are Oeko-Tex 100 certified. They are also regularly tested in independent laboratories to guarantee the absence of endocrine disruptors or unwanted substances.
2 - Ultra-soft period underwear for maximum comfort
At Louloucup, your comfort is our priority. The cuts of our period panties are especially well-designed. Before a model is approved and produced, all our washable panties are tried on different body types and in various sizes. The cut of the panty isn’t the same in XS or XL. Beyond XL, the styles are adjusted and the waistband is raised to offer optimal comfort.
Plus, the inside of all our period panties is made entirely from certified organic cotton. Some period underwear styles are made completely of cotton. Cotton is a natural, soft material to wear. It’s comfortable and doesn’t give you that “plastic diaper” feel you often get with disposable protection.
3 - Affordable menstrual panty packs to save money
Period underwear is a hygienic, feminine, and sustainable alternative that helps you save money in the long run. On average, a woman has 35 years of periods, with about 13 cycles per year, which adds up to up to 10,000 disposable products used over a lifetime! By switching to period underwear, you can significantly reduce your expenses—and your waste.
Of course, the initial investment may seem high, but one pair of period underwear lasts between 3 and 5 years and can pay for itself in just 5 to 10 cycles. That’s much more economical than buying disposable products all year long.
Not only are you saving money, but you’re also making a real difference for the planet: no more single-use waste, just washable and reusable underwear!
A comparative study conducted by Zero Waste Europe confirms it: reusable products are much more environmentally friendly.
🔗Read the comparative study by Zero Waste Europe
Looking for affordable period panties ? Check out our discounted period panties and thongs, available in bundles on our shop.
Caring for period panties: how to care for your period panties?
Taking care of your washable menstrual underwear is very important for their lifespan. The right habits make all the difference. Here are the key steps for taking care of your menstrual underwear.
Step 1: Rinse with water
After using your period underwear, rinse it with cold water to remove the blood from the different layers of fabric. Keep rinsing until the water runs clear.
Step 2: Washing
To wash your period panty, you have two options:
- Machine wash
In the washing machine, period underwear should be washed at 30°. They can be washed together with the rest of your laundry. We recommend washing them in a laundry bag to prevent damage and keep them in good condition for as long as possible!
- Hand wash
You can also hand wash your period underwear by scrubbing it with (non-greasy) detergent before letting it soak in cold water for about thirty minutes.
To take care of your period underwear, avoid: fabric softener, conditioner, and stain remover. These products can damage your period lingerie and reduce its effectiveness. Also, soaps and detergents with fatty substances are not recommended. Marseille soap or Aleppo soap can clog the fabric’s pores and prevent blood from being absorbed by the lower layers.
Step 3: Drying
To preserve the effectiveness of your period underwear, avoid any direct heat sources like a tumble dryer, radiator, or hair dryer. Air drying, either flat or hanging, is highly recommended to maintain the absorbent properties of the fibers.
🔗The menstrual health guide from WECF France also offers practical care tips to extend the life of your reusable products.
Final word… period underwear: your best choice!
Switching to period underwear can sometimes feel intimidating. But choosing washable hygienic underwear means…
- 🌼 opting for a healthier solution for your body,
- 🌍 choosing a washable, durable, and reusable alternative to help protect the environment,
- 🥰 picking comfort so you can experience your period with peace of mind.
Do you have questions about your period, your cycle, or your protection options? Check out our other super comprehensive guides: the no-taboo guide to the menstrual cycle and the menstrual cup guide.
Want to learn more…
A little reading if you want to learn more about heavy-flow period underwear, how to care for menstrual underwear, period panties for teens, or even reimbursement for your intimate protection:
They tried it, they love it
