louloucuplouloucup

French lingerie meets period care.
Loulou takes care of you. 🩷

Organic cotton · OEKO-TEX® certified · Lab-tested · Free US shipping over $60

Our customers recommend us 4.5/5 based on 2594 verified reviews
+2594 independently collected positive reviews

Designed in France since 2017 for your comfort, your body, and the planet. Lined with certified organic cotton, OEKO-TEX® Class II certified, and independently lab-tested with no detectable PFAS. Washable, reusable, and built to last for years.

Designed in France since 2017 for your comfort, your body, and the planet. Lined with certified organic cotton, OEKO-TEX® Class II certified, and independently lab-tested with no detectable PFAS. Washable, reusable, and built to last for years.

Up to 12-hour protection

Organic cotton lining

Designed in France since 2017

Designed in France since 2017

Lab-tested · No PFAS detected

Lab-tested · No PFAS detected

Pays for itself in 1 year

Save more when you build your kit

The average American spends ~$240/year on tampons & pads. One Louloucup pair lasts 2-3 years. Do the math.

2
items
Tier Image
From $32.90 (−7%)
each
3
items
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From $31.90 (−10%)
each
4
items
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From $30.90 (−14%)
each
5
items
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From $27.90 (−21%)
each — Best value
Build my pack →

Featured in

Our best ad? It’s you.

Our story · French period care since 2017

Louloucup is a French brand on a mission to make periods calmer, cleaner, and a whole lot more comfortable. Founded in 2017, we were one of the first period underwear brands in France — and we’ve been refining our craft ever since.

Made with certified organic cotton and OEKO-TEX® STANDARD 100 Class II certified materials — the strictest certification for textiles in direct skin contact. Independently lab-tested with no detectable PFAS. Vegan, cruelty-free, and 100% transparent.

Designed for every body — from XXS (teen sizes) to 3XL — and every flow, from light spotting to heavy postpartum days. Whatever your shape, your stage of life, your style — we’ve got you.

Welcome to the Loulou universe. Period care that’s healthy for your body, kind to the planet, and beautiful enough to wear on date night. Loulou takes care of you. 🩷

What our customers say

4.5/5 · 2,576 verified reviews across our full range

  • ★★★★★

    Vilma C. — Liv

    “Honestly, I’m blown away. I have a very, very heavy flow, and even after going to the bathroom you stay dry — none of that damp feeling. And in the heat it’s genuinely light. I love it so much I ordered a second one. A safe bet.”

  • ★★★★★

    Linda T. — Fanny

    “It’s the first time I’ve bought this kind of underwear. I’m wearing it today for the first time, and honestly it’s spot on. You feel light, you don’t feel any protection the way you do with regular pads, and I think it looks great. I’m really happy — I’ve ordered two more.”

  • ★★★★★

    Virginie H. — Margot

    “Perfect. Very good absorbency, holds well, really pleasant to wear, and not bulky.”

  • ★★★★★

    Laura T. — Liv

    “Good absorbency, very comfortable — probably because it’s seamless. I’m usually an M but I took an L, and I don’t regret it.”

  • ★★★★★

    Sophie G. — Mathilde

    “Comfortable. It was a first for me, and period underwear is so much more pleasant than pads.”

  • ★★★★★

    Sylvette B. — Gaby

    “I’m delighted. Gaby is pretty and incredibly comfortable. I’m protected all day (8 hours) and free to move without worrying about a leak. I recommend it.”

Translated from French.

See all reviews →

Period underwear FAQ

Which period underwear is the most effective?

The most effective period underwear combines strong absorbency, reliable leak protection, and skin-safe materials. Heavy-flow Louloucup styles absorb up to 40-50 ml — the equivalent of 4-5 tampons — and can be worn up to 12 hours.

All our panties are OEKO-TEX® STANDARD 100 Class II certified, lined with certified organic cotton, and independently lab-tested with no detectable PFAS. Tested by SMT Lab under method CEN/TS 15968, down to 25 parts per billion. Nothing detected. The full report is on our Certification page.

How do I pick the right period underwear?

Pick based on your flow (light, medium, or heavy), your preferred silhouette (high-waist, seamless, thong, etc.), and your size. Most women own 3-5 styles for different days of their cycle and different outfits.

Can I wear period underwear all day?

Yes. Depending on your flow and the style, you can wear Louloucup for 8-12 hours of leak-proof protection.

Can I sleep in period underwear?

Absolutely. Heavy-flow styles are perfect for nights — they have a wider, longer absorbent zone (front to back) so you stay protected and leak-free all night.

Can I work out in period underwear?

Yes. Our period underwear is breathable, discreet, and comfortable enough to move freely. For workouts or fitted leggings, our seamless styles are your best friend.

What does Louloucup offer in the US?

For our US launch, we offer 7 styles of organic, OEKO-TEX certified, lab-tested period underwear — designed in France for every flow, every body, and every life stage. From XXS (teen) to 3XL, light to heavy, postpartum to perimenopause.

Are Louloucup panties lab-tested for PFAS?

Our panties are independently lab-tested with no PFAS detected — and we publish the report. Tested by SMT Lab under method CEN/TS 15968, down to 25 parts per billion. Nothing detected. The full report is on our Certification page. Certified under OEKO-TEX® STANDARD 100, and separately lab-tested for PFAS — because a certification and a lab report aren't the same thing.

How do I wash them?

Rinse in cold water until water runs clear, then machine-wash at 30°C / 86°F with similar colors. Air-dry only — no dryer. With proper care, your Louloucup panties last 2-3+ years.

What about shipping & returns?

Free US shipping on orders over $60 (flat rate below). Orders ship within 48 hours from our California warehouse. Unworn pairs can be returned within 30 days. Loulou takes care of you.