7 products
Seamless period panties
Over time, Louloucup has gotten to know its users’ priorities better. In addition to our products’ impeccable quality, discretion andinvisibility have become essential factors when buying period underwear.
This is a key concern when choosing this type of washable period protection Is period underwear very thick? Can it be noticeable under tight-fitting clothes? Does it feel like wearing a diaper? What should you do for PE class or during a workout in tight leggings? How can you wear tailored pants, skinny jeans, or a skirt?
At Louloucup, there’s no need to choose between absorbency and discretion—our catalog gives you access to a menstrual underwear delicate and feminine, healthy and sustainable, very discreet (menstrual underwear with flat seams) or completely invisible (menstrual underwear seamless).
Completely invisible period panties
No lines, no marks, no seams that dig in, Louloucup rises to the challenge by offering period panties that effectively capture period blood while remaining completely invisible. A real challenge that Louloucup, a French brand, has taken on brilliantly!
On the agenda: fine and delicate fabrics, second-skin effect, models with flat seams or seamless designs made in one piece to avoid folds, creases, bumps, etc. In the end, you're wearing super effective period underwear that's also ultra-thin and completely invisible.
Seamless period underwear—and so much more!
Very soft, very comfortable, reliable, healthy, our seamless menstrual panties Louloucup they certainly have plenty of advantages! They’re invisible, but also highly absorbent. They handle heavy, abundant, moderate, and light flows. The absorbent layer sewn inside the underwear is very effective and can efficiently retain the menstrual flow without overflowing or becoming saturated.
They're also safe for your health and your intimate areas. Free from harmful or toxic agents, and without silver nanoparticles, our period underwear is lined with organic cotton certified.
Seamless period panties for regular and heavy menstrual flow
Overview of Louloucup's main seamless styles: pretty, discreet panties that are ultra-absorbent, thin, and invisible, so you can keep wearing all your favorite fitted clothes and outfits—even during your period.
For very heavy and intense menstrual flows
The menstrual underwear for very heavy flow Liv In plain black, it's absolutely invisible. This panty delivers a second-skin effect and easily manages even the heaviest, most intense menstrual flows.
The great news: the Liv model has been such a hit with our users (over 100 reviews, rated 4.9) that we were able to adapt it for the teen collection and the plus-size range. So the Liv panties are available in sizes XXS, as well as 2XL, 3XL, and 4XL!
For average and normal menstrual flows
The Gaby menstrual underwear for medium flow Solid black is completely invisible. Seamless, it perfectly manages both medium and normal menstrual flows.
The Lucie menstrual panties for medium flow is a menstrual underwear with flat seams for maximum discretion, but also comfort. The very good news: this lovely black period panties with its gold finish is available in teen collection (starting from XXS).
The Emilie seamless menstrual panties for medium flow features a stylish crossover cut, is black and comfortable, and absorbs the equivalent of two sanitary tampons.
Invisible period panties at affordable prices
At Louloucup, we are actively fighting against period poverty by offering fair prices. Made in Europe, organic cotton, vegan, recyclable packaging don’t prevent a affordable price ! Our period panties are especially discounted when you buy several and create a bundle.
This fully customizable pack lets you create a set that reflects your style with the panties of your choice. At Louloucup, each panty is €28.90. The more panties you select, the lower the price per panty. For a set of 5 panties, the price per panty is €22.90.
Seamless Period Panties FAQ
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I have a medium or normal flow and don’t want my underwear to show under my jeans. Which model would you recommend?
For medium flow, Louloucup offers three pretty and feminine period panties that are invisible or ultra-discreet. The black Gaby period panty is completely invisible. It feels like a second skin—soft and comfortable. Two other models are also available and ultra-discreet: the Emilie seamless panty and the Margot panty!
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I’m looking for discretion above all. Is seamless period underwear right for me?
Yes! Our seamless period panties are designed to be ultra-thin and super smooth against your skin. They don’t create any lines or bulk. There’s no way to see them under your clothes or know you’re wearing period underwear!
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I’m looking for a discreet and organic period panty—does the Louloucup seamless period panty range meet my needs?
Yes! Just like the Margot underwear, which is ultra-discreet and lined with 95% organic cotton, Louloucup has chosen certified organic cotton for its underwear!
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I have a heavy flow—can the seamless panty optimally hold my intense menstrual flow?
Yes. Louloucup offers, for example, a seamless period panty for very heavy flow. The Liv model is a great washable panty, feminine and pretty, with simple, clean lines. Comfort, absorption, and invisibility—all the boxes are checked with this period underwear, which has an absorbency equivalent to 4 to 5 tampons.
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Can seamless period underwear be worn under a tight-fitting dress?
Yes! Period panties or menstrual briefs with flat or seamless stitching are designed to be worn under tight-fitting clothes, bodycon dresses, fitted jumpsuits, or suits. Don’t worry—even though they have high absorbency, they remain completely invisible! No diaper effect, no marks, no creases on your butt or hips—there’s no way to tell you’re wearing period underwear.
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What period protection should you use for a workout?
When exercising, women on their periods look for both comfort and discretion. Two solutions: the menstrual cup or seamless invisible period underwear. The choice is yours! While the cup isn't for every woman or every body type, invisible period underwear is definitely an excellent compromise!
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Is seamless period underwear visible under sports leggings?
No. Just like ultra-thin sports lingerie made with lycra for a second-skin feel, our seamless period underwear is invisible under leggings, shorts, or cycling shorts. No worries. Teens can attend PE class stress-free. Adult women can go to their club class or do their weekly run while looking great!
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How much does a seamless Louloucup menstrual panty cost?
Our invisible menstrual underwear is €28.90 each, except for the Liv underwear, which costs €32.90 (its absorption is doubled, so its manufacturing cost is higher).
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How can I take advantage of promotions?
We invite you to check out the current promo code that applies at checkout. We regularly run promotional campaigns, sales, and more. Also, don’t hesitate to sign up for the Loulou Addict loyalty program. This program lets you earn points and enjoy plenty of perks.
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How does the Louloucup discounted underwear bundle work?
It's very simple: you select the panties (as well as cups and swimsuits) you want. You fill your cart and you'll see the discount applied automatically. The more products you buy, the lower the price! With 5 panties added to your cart, the price per panty drops from €28.90 to €22.90—a great deal!
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Are there different payment options?
All orders over €50 can be paid in 3 installments with no fees.
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What’s the difference between a very discreet panty and an invisible panty?
The very discreet underwear has flat seams. It is barely visible. The invisible underwear has no seams—it’s seamless and completely invisible under clothing. In both cases, this is very thin lingerie that is impossible to spot.
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How do you care for a seamless period underwear?
To make your period underwear last, nothing beats gentle, careful care with the right steps: rinse with cold water, machine wash on a short cycle at 30°C with a gentle, non-aggressive detergent, then air dry with no direct heat (no radiator, no hair dryer, etc.). Skip the iron and tumble dryer, which would only damage the absorbent membrane. With these few steps, your menstrual underwear will last for many years.
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How long does my invisible period underwear last?
With gentle, chemical-free care, a pair of period underwear lasts about as long as regular underwear—around 5 years.
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How much does shipping cost with Louloucup?
€0! Shipping is always free with Louloucup. In France, Europe, and worldwide, delivery is included.
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I ordered the wrong size or model, what should I do?
In your package, you’ll find a return slip in case there was a mistake with your order (wrong model or size). Follow the instructions on the return slip. You can return unwanted products (except menstrual cups) within 15 days of receiving your package. Return shipping costs are your responsibility. We recommend using tracked shipping to ensure we receive your return safely.
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I didn’t find the answer to my question in this FAQ, where can I reach out?
You can always contact us at this email address:hello@louloucup.com !
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