Period panties – The full Louloucup collection

Q: What is the best period underwear?

The best period underwear is the one that offers high absorbency, reliable leak protection, and skin-safe materials. Styles designed for heavy flow can absorb up to 40 to 50 ml of fluid (the equivalent of 4 to 5 tampons) and be worn for up to 12 hours depending on flow intensity. Some brands, like Louloucup, use organic cotton and OEKO-TEX® Standard 100 Class II certified textiles tested PFAS-free, guaranteeing the absence of harmful substances.

Q: How long can you wear period underwear?

Period underwear can usually be worn for between 8 and 12 hours, depending on how heavy your flow is and the absorbency of the style. For light to medium flow, it can cover the whole day. For heavy flow, you may need to change it earlier to ensure optimal leak protection.

Q: What are the drawbacks of period panties?

Period underwear must be washed after use, which means you’ll need several pairs to cover a full cycle. For very heavy flows, you may also need to change it earlier in the day. That said, high-absorbency styles now offer reliable protection for several hours.How do I know if my period underwear is full? You should change your period underwear when the absorbent area starts to feel consistently damp or less comfortable. The wear time depends on how heavy your flow is and the absorbency of the style. Underwear designed for heavy flow can usually be worn for several hours before reaching full capacity.

Q: How many pairs of period underwear do you need for one cycle?

For a full cycle, it’s generally recommended to have at least 5 pairs of period underwear. This lets you wear one while the others are drying after washing, and switch styles depending on how heavy your flow is.Most women use several absorbency levels (light, medium, or heavy flow) so they’re protected throughout their period. Since period underwear is washable and reusable for several years, the purchase quickly pays for itself.

Our period panties with organic cotton interiors give you up to 12 hours of protection with no leaks or odours.

Our heavy-flow panties

Culotte menstruelle sans couture Liv de Louloucup, flux abondant et invisible sous les vêtements

Culotte menstruelle noire invisible sans couture pour flux abondant

Liv – Seamless period underwear for very heavy flow ++++++

XS S M L XL XXL 3XL

Mathilde – Period underwear for very heavy flow ++++++

XS S M L XL XXL XXXL

Culotte menstruelle Fanny de Louloucup, flux abondant avec plumetis

Modèle Fanny par Louloucup, culotte menstruelle élégante pour flux abondant

Fanny – Heavy flow period underwear +++++

XS S M L XL XXL XXXL

Our medium‑flow panties

Margot – Medium flow period underwear +++

XS S M L XL XXL XXXL

Ella - Medium-flow period underwear +++

XS S M L XL XXL XXXL

culotte menstruelle pas cher sans couture

Gaby - Invisible medium-flow period panty

XXS XS S M L XL XXL XXXL

Our light-flow panties

The collection is empty!

Why is Louloucup the best period panty?

The best period panty always depends on your flow, your body shape and your personal preferences. At Louloucup, our styles are designed to meet three essential criteria: reliable absorbency, maximum comfort and fabrics that are gentle on your intimate area.

Our period panties combine high-performance absorbent technology, certified textiles and comfortable cuts to give you effective protection all day long.

Reliable absorbency and protection

Our period panties are designed to provide optimal protection during your period, even for heavy flow. Thanks to their multi-layer technology, they absorb menstrual blood effectively while remaining discreet and comfortable to wear.

Absorbency capacity up to 40–50 ml, equivalent to about 5 tampons
360° leak-proof protection with a waterproof barrier and reinforced seams
Suitable for all flows: light (20–30 ml), moderate (30–40 ml) and heavy (40–50 ml)
Up to 12 hours of protection depending on your flow

Healthy, certified materials

Textile quality is essential for healthy menstrual protection. That’s why we select soft, breathable materials that are safe for the skin.

Soft, breathable organic cotton lining
OEKO-TEX® Standard 100 Class II certified
Tested PFAS-free for healthier protection
Soft materials suitable for sensitive skin

These commitments ensure reliable menstrual protection that respects your intimacy.

A long-lasting, budget-friendly solution

Louloucup period panties are designed to last and to replace disposable products in your daily routine.

Reusable for several years
Significantly reduces menstrual waste
Easy to wash and reuse every day
A budget-friendly option over the long term

Which period panties should you choose based on your flow?

Every menstrual cycle is unique. Our period panties are designed to suit all body types, from 3XS to 5XL and all flow levels, from light to very heavy.

Find the ideal absorbency for your cycle

Very heavy flow: Need maximum security at night, after childbirth or for extremely heavy periods? Our styles absorb up to 50 ml (equivalent to 5 tampons). 👉 See the Heavy Flow collection
Medium flow: Discreet and ultra-comfortable, they provide reliable protection with no “diaper” effect for your busy days. 👉 See the Medium Flow collection
Light flow: Perfect at the beginning or end of your cycle, for spotting, or as a backup to a French menstrual cup. 👉 See the Light Flow collection

A style for every mood: thong, seamless or high-waisted

Because your period protection should never limit your wardrobe, Louloucup offers styles with a wide variety of cuts and looks:

Menstrual thong: ultimate discretion so you can wear your most fitted outfits.
Seamless panty: our “Invisible” and “second-skin effect” technology for total comfort under leggings or skinny jeans.
High-waisted panty: elegant, reassuring support, especially popular in our plus-size styles up to 5XL.

Why choose Louloucup period panties?

🌱 Organic cotton: a healthy, natural, breathable and soft inner lining for your intimate area, GOTS certified.
🛡️ Certified safety: fully certified OEKO-TEX® Standard 100 protection, guaranteed PFAS-free.
🌍 European manufacturing: Quality and ethics with production mainly based in Portugal.
👩 Inclusivity: discover our range of teen period panties starting from size 3XS (Simone style), as well as our postpartum panty range (Jade style).
🏖️ Stress-free swimming: never miss a pool day again with our teen and women’s period swimsuits.

They talk about Louloucup better than we do

“Louloucup: revolutionizing periods with elegance and comfort.” — Cosmopolitan
“Voted one of the best period panties for value for money.” — Passeport Santé
“A healthy, effective alternative that wins people over with its discretion.” — 20 Minutes

Which style of period underwear should I choose?

Choosing period underwear mainly depends on how heavy your flow is, the cut you prefer, and how discreet you want it to be. Here’s a comparison of the main Louloucup styles to help you choose the protection best suited to your cycle.

Comparison of Louloucup period underwear

Modèle	Flux	Coupe	Idéal pour	Absorption
Clara	Very heavy	High-waisted	Night and very heavy flow	≈ 5 tampons
Mathilde	Very heavy	Full-coverage shorty	Maximum security	≈ 5 tampons
Liv	Heavy	Seamless	Discreet under clothing	≈ 4 tampons
Margot	Medium	Comfortable high waist	Discreet under clothing	≈ 3 tampons
Gaby	Medium	Invisible cut	Fitted clothing	≈ 2–3 tampons

Period underwear FAQ

What is the best period underwear?

The best period underwear is the one that offers high absorbency, reliable leak protection, and skin-safe materials. Styles designed for heavy flow can absorb up to 40 to 50 ml of fluid (the equivalent of 4 to 5 tampons) and be worn for up to 12 hours depending on flow intensity. Some brands, like Louloucup, use organic cotton and OEKO-TEX® Standard 100 Class II certified textiles tested PFAS-free, guaranteeing the absence of harmful substances.

How long can you wear period underwear?

Period underwear can usually be worn for between 8 and 12 hours, depending on how heavy your flow is and the absorbency of the style. For light to medium flow, it can cover the whole day. For heavy flow, you may need to change it earlier to ensure optimal leak protection.

What are the drawbacks of period panties?

Period underwear must be washed after use, which means you’ll need several pairs to cover a full cycle. For very heavy flows, you may also need to change it earlier in the day. That said, high-absorbency styles now offer reliable protection for several hours.

How do I know if my period underwear is full? You should change your period underwear when the absorbent area starts to feel consistently damp or less comfortable. The wear time depends on how heavy your flow is and the absorbency of the style. Underwear designed for heavy flow can usually be worn for several hours before reaching full capacity.

How does a menstrual panty work?

Period underwear works thanks to several layers of technical fabrics that absorb menstrual flow, lock it in, and prevent leaks. You wear it like regular underwear, and it can replace tampons or pads for several hours.

The absorbent layers capture the blood, the waterproof layer blocks leaks, and the outer layer lets the skin breathe. Depending on the style and how heavy your flow is, period underwear can provide up to 12 hours of protection.

How many pairs of period underwear do you need for one cycle?

For a full cycle, it’s generally recommended to have at least 5 pairs of period underwear. This lets you wear one while the others are drying after washing, and switch styles depending on how heavy your flow is.

Most women use several absorbency levels (light, medium, or heavy flow) so they’re protected throughout their period. Since period underwear is washable and reusable for several years, the purchase quickly pays for itself.