culotte menstruelle Naomi

How do you properly care for your period underwear to make it last longer?

Written by: Camille Raynaud

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Published on

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Time to read 9 min

Period underwear are true allies for managing your period with peace of mind, combining comfort, effectiveness, and eco-friendly values. However, to maintain all their qualities—absorbency, softness, and style—regular, proper care is essential.

Louloucup, a French period underwear brand, offers you a complete guide full of tips and advice to take care of your period panties, period boxer, or period thong.

The goal? To make sure your period underwear lasts over time, cycle after cycle—your period panties should stay absorbent and effective as on day one! Using period panties is great for the planet, but it should also make sense financially for you. Your period underwear should remain high-performing and comfortable over time, and for that, you need to know how to care for them properly.

Whether you’re an experienced user or thinking about trying period panties for the first time, this guide is for you!

I. Why is caring for your period underwear essential?

After each use, your washable period underwear needs special care to maintain its absorbency and original comfort. Regular care not only extends the life of your intimate garment, but also ensures optimal hygiene.

By adopting a proper washing routine, you preserve the quality of the fabric, prevent the development of bad odors, and ensure your underwear stays as beautiful and effective as it was on day one.

If you don’t follow the right steps when removing your period underwear, delay rinsing, or wash it on a cycle that’s too hot, too strong, or too long, your underwear will be much less absorbent and effective. It will also feel less soft, rougher, and less comfortable.

FOCUS on... the Lucie model

  • 🖤 A pretty, feminine black period panty.

  • 🧶 100% organic cotton period underwear.

  • 🩸 Perfect for absorbing medium or normal flow (equivalent to about 2 to 3 tampons).

  • 📏 Available from size XXS (in teen version, equivalent to a US 2) up to XXL size (equivalent to size 44).

  • 🪽 Ultra-soft and extra comfortable, Lucie is a true delight to wear, day or night.
  • 💛 Subtle, delicate, and gold finishes.

  • ♻️ Standard 100 Oeko Tex.

  • 🇵🇹 Made in a workshop in Portugal.

  • 💶 Low price: €28.90, eligible for the custom bundle with a discounted price (model at €22.90 if you have 5 menstrual products in your cart).

II. Caring for your period underwear: essential steps


To make your period underwear last, it’s really important to follow a few simple but essential steps after every use. Washing your period underwear: here are our 3 steps.

1. Rinse with cold water


Why rinse?


After use, it’s recommended to rinse period underwear immediately in cold water. This helps remove blood residue before it sets into the fabric. Cold water helps prevent stains from setting, making them easier to remove during washing.


How to rinse properly?


  • Rinse the underwear as soon as possible. Ideally, do it right after you take it off so the blood doesn’t have time to dry. 
  • Use cold water and, if needed, a little mild soap. 
  • Avoid scrubbing vigorously to prevent damaging the fibers. We recommend releasing the captured flow by pressing with your palm several times and gently moving back and forth.

"The panties are super comfortable and really pretty!" - Louison, happy customer.

2. Machine wash or hand wash

Washing your period panties: machine or hand wash?
Both are possible! The key is to use a gentle method to protect the absorbent and delicate fabrics. Period panty care: which washing method should you choose?

Hand wash

Fill a sink or basin with lukewarm water (never hot).

Add a gentle detergent, preferably one specially designed for delicates or organic fabrics.

Let it soak for a few minutes, then gently scrub, focusing on the crotch area.

Rinse thoroughly to remove all traces of soap.

Machine washable

Put your underwear in a laundry bag to prevent snags.

Choose a delicate cycle with cold or lukewarm water (delicate fabric cycle, short cycle at 86°F/30°C max).

Use an eco-friendly, fragrance-free detergent. Absolutely avoid harsh products like bleach or fabric softener, as they can damage the fibers and reduce absorbency.

As you’ve probably guessed, washing your period underwear requires gentleness and care!

3. Air dry


Why avoid the dryer?


Tumble drying is strongly discouraged as excessive heat can damage delicate fabrics and reduce the absorbency of the panties. Additionally, the movement in the dryer can cause deformation or tears.


How can I efficiently dry my reusable cloth period protection?


  • Lay your period underwear flat on a clean towel or hang it up to air dry, preferably in the shade to prevent fading.
  • Avoid external heat sources like heaters, hair dryers, fireplaces, or even direct sunlight in the summer.
  • Make sure your underwear is completely dry before storing it to avoid bad odors or mold.

As you’ve probably noticed, period underwear doesn’t like heat, so avoid it as much as possible. Also, since the absorbent layer can be a bit thick, period underwear may take some time to dry—be patient, it’s worth it!

The three steps to care for your underwear

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III. Tips for long-lasting, effective period underwear

In addition to the basic steps, here are a few extra tips to make sure your period underwear stays in perfect condition over time.

1. Remove stubborn stains

If stains persist even after immediately rinsing, you can use natural products to deep-clean your period underwear, such as:

  • Baking soda. Make a paste with a little water and apply it to the stain. Let it sit for a few minutes before rinsing.
  • Or white vinegar. Mix with cold water and gently apply to the stain.

How do you treat dried blood stains?

  • First, rehydrate the stain by soaking it in cold water.
  • Next, apply your natural stain remover and gently rub without damaging the fabric.
  • Rinse thoroughly to make sure all residue is gone.

2. Maintain the absorbency of your period underwear


Caring for period underwear without fabric softener

Softeners and fabric conditioners, while they make fabric softer, can create a barrier on the fibers that reduces their absorbency. It’s best to avoid them to maintain the effectiveness of your period underwear.


Choice of detergent or laundry soap

Use a gentle detergent that’s safe for organic fabrics. Some brands offer detergents specifically formulated for intimate underwear and absorbent fabrics, so do your research. It’s worth investing in good care products to ensure your period underwear lasts a long time.

3. Prevent bad odors


Precautions for storage

  • Before storing your reusable protection, make sure it is completely dry.
  • Store it in a well-ventilated place away from moisture.
  • You can also use a dedicated storage pouch specifically designed for period underwear.

What should I do if there are unpleasant odors?

If you notice a persistent odor, wash again and add a little white vinegar to the rinse. Vinegar is excellent for neutralizing odors while being gentle on fabric.

IV. Washing period underwear: 3 mistakes to avoid

1. Using hot water

Hot water is the enemy of absorbent fabrics. It can set stains and damage the delicate fibers of your underwear, reducing its absorbency and durability.

2. Using harsh products

Products to avoid:
- Bleach is too harsh for the fabric; it can discolor and weaken it.
- Fabric softeners alter fiber structure and reduce absorbency.
- Highly concentrated detergents can leave residues that break down the fabric over time.

Why are these products harmful? Not only do they compromise the panties’ performance, but they can also affect intimate health. Choosing gentle, natural products better preserves your period underwear and also limits allergic reactions and irritation.

3. Drying your period underwear in the dryer

The dryer can cause shrinkage or fabric distortion. Exposure to high heat damages the fibers and reduces absorbency. To preserve the quality of your menstrual product, air drying is always the best option.

V. Spotlight on two models: Naomi and Lucie

The Naomi period underwear


This pretty Louloucup model has some great features:

  • Black, sexy, comfortable, and elegant, the Naomi period underwear stands out with its simple yet refined lacing on the hips, giving it irresistible charm.
  • Able to handle a medium menstrual flow (equivalent to 2 or 3 tampons, about 20 ml), this model guarantees reliable protection for many hours.
  • Its organic cotton lining provides a soft, healthy touch against your skin, keeping you dry and free from unpleasant odors.
  • Perfect for medium flows, it can also be worn at the end of your period when your flow lightens, especially if you have heavy bleeding in the first few days.

The Lucie Period Panty


Lucie is a medium-flow period panty with great features:

  • With its discreet finish and subtle gold touch, the Lucie period panty stands out for its feminine and modern style.
  • Designed for medium flow (equivalent to 2 or 3 tampons), it offers optimal absorption so you can move freely.
  • Made from organic cotton, it provides exceptional softness and is very discreet under clothing thanks to its flat seams.
  • Available in size XXS (teen version) up to XXL, Lucie fits all body types.

These two Louloucup styles perfectly reflect Louloucup’s commitment to quality products designed for women’s well-being and the environment. To keep them effective and beautiful, careful care is essential.

Whether you choose the Naomi period underwear for its elegant design and reliable performance, or the Lucie period panties for their modern style and discretion, the key is to invest a few minutes in their care. These simple steps make all the difference and will help you feel confident throughout your period.

"I ordered a pack of 3 panties (Rebecca and Lucie) for my 13-year-old daughter. She uses one for the day and one for the night. She feels good in them, but she prefers the Lucie because the crotch is wider, so she feels more secure." - Veronique M., a happy mom!

Final word: take care of your period panties to extend their lifespan

In summary, proper care of your menstrual underwear is essential to ensure its effectiveness and longevity. Here are the key points to remember: 

Rinse immediately with cold water: Remove menstrual flow residue as soon as possible to prevent stains from setting in.

Gentle wash: Whether by hand or machine, always use cold or lukewarm water and an eco-friendly detergent.

Air dry: Let your underwear air dry to preserve the fabric quality.

Tips for stains and odors: Use natural products like baking soda or white vinegar.

Mistakes to avoid: Don’t use hot water, harsh products, or the dryer, as these can damage the absorbency or fabric quality.

By following these tips, you’ll not only extend the lifespan of your washable menstrual products, but you’ll also enjoy consistent comfort and effectiveness throughout your period.

Proper care doesn’t just ensure your intimate lingerie performs well, it also supports a more economical and eco-friendly lifestyle.

This comprehensive guide to caring for your durable period underwear helps you understand the importance of every step, from quality washing to careful drying, so you can make your intimate wear last longer.

With expert advice from Louloucup and feedback from many users, you’re now set to care for your period panties, thongs, and menstrual boxers the right way. By taking care of these essentials, you’re making choices that are good for your wallet, the planet, and your body.

Bonus FAQ: caring for and washing your period underwear

How long does a period underwear last?

The lifespan of period underwear depends largely on how you care for it. By following proper washing and drying practices, you can expect your period panties to last for years without any issues. Good care means stress-free, economical periods.


How can I tell if my period underwear is still effective?

If you notice your period underwear is no longer absorbing as well as before or is showing signs of wear (damaged fibers, poor fabric integrity), it’s time to replace it. If it’s saturated, leaking, the fabric feels rough, or your experience is uncomfortable, then it’s time to renew your period protection.

Can I use a laundry bag in the washing machine?

Yes, using a laundry bag is highly recommended to protect your menstrual panties when machine washing. It helps reduce friction and prevents snags.

How should I store my underwear after my period until the next one?

Make sure your period underwear is completely dry before storing it. Keep it in a storage pouch or a well-ventilated drawer, away from moisture to prevent odors and mold.

Where can you find personalized advice on caring for your period underwear?

Louloucup regularly updates its blog and social media with care tips and customer feedback. Don’t hesitate to check out these resources or contact customer service directly for advice tailored to your needs.



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