Masmi

Masmi Eco Period Underwear MODERN low rise (sizes: S, M, L, XL) 100% BIO cotton

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Masmi Reuse menstrual panties are made from the healthiest GOTS-certified organic cotton, grown without pesticides, herbicides or chemical fertilizers. Our panties are hypoallergenic and hold as many as 4 certificates: GOTS, FSC, VEGAN and COTTON NATURAL.

Period underwear replaces pads, tampons and other feminine hygiene products. Timeless style and modern design. The front is cut in a V-shape to follow the contours of the female body. It features a low rise and is ideal for women who prefer underwear that stays invisible under tight clothing. Masmi menstrual panties have been recognized as the best period underwear on the market by independent Allegro experts and other independent rankings – see here:

ranking of period panties (copy the link into your browser):

  1. https://allegro.pl/artykul/ranking-majtek-menstruacyjnych-2024–AgMwdkaYeSW
  2. https://rankedo.pl/menstrual-panties-ranking/
  3. https://terdeals.com/pl/ranking/1965/top-5-menstrual-panties

Why choose Masmi cotton period panties?

  • 100% GOTS-certified organic cotton – the healthiest material that period underwear can be made from. No irritation of intimate areas, inflammation, fungal infections or chafing.
  • Masmi period panties are hypoallergenic .
  • Masmi Reuse period underwear doesn’t “rustle” while you wear it, because the absorbent layer contains no film (polyurethane, polyester, etc.) – giving you 100% discretion and peace of mind in every situation.
  • Guaranteed up to 100 washes without loss of absorbency! – We are the only brand on the market to offer such a guarantee on menstrual panties. If you follow the manufacturer’s washing instructions, Masmi period underwear will retain its properties for up to 400 washes without loss of absorbency!
  • Maximum absorbency (up to 77 g) – that’s more than 6 super-size tampons. It guarantees comfort and safety throughout the day or night. No marks on your clothes after a full day at work/school and none on your sheets in the morning.
  • The best solution for a first period – high absorbency and long-lasting protection combined with the simplest use compared to inserting a tampon or changing a pad give girls an unrivalled guarantee of comfort on these important days – one pair is enough for a whole day at school.
  • They work brilliantly in extreme conditions – during workouts, on trips, on planes, while travelling, during long meetings or conferences, and in all other real-life situations where changing a pad or tampon or emptying a cup may be a problem – you don’t have to give up your plans! They are an excellent solution for women after childbirth, with incontinence, discharge, and for women with disabilities – you save time and money while enjoying unparalleled comfort of use.
  • They are planet-friendly – fully biodegradable, no component of the product has been tested on animals, and they contain no superabsorbents, film, plastics, artificial fragrances or allergenic ingredients.
  • The best economical choice among all intimate hygiene products!

Q&A:

  • Are period panties worth buying?

Among women who have switched from pads, tampons, or cups to period underwear, the reviews are overwhelmingly positive. Most agree that Masmi underwear holds up even during the heaviest days of their period.

  • Do you use pads or tampons together with period underwear?

Menstrual underwear is designed to provide protection during your period all on its own. No need to wear an extra pad, but if you feel more comfortable with a pad, you can use it just like with regular underwear. You can also wear the underwear as extra protection during your period when using a tampon or menstrual cup.

  • Are period panties expensive?

Period underwear is very efficient and durable, so buying it is definitely economical. One pair can last us 3–4 years without any loss of absorbency. If you follow the manufacturer’s washing and drying instructions, this period can be as long as 6 years (remember that the panties can last even longer, but their absorbency will decrease slightly – this process will not be noticeable to you). The cost of buying pads or tampons over a similar period is 3 to 6 times higher (depending on the brand of pads or tampons used) than buying 2–3 pairs of panties. On top of that, there is the incomparably greater comfort of using panties due to the longer time between changes – 12 h for panties vs 3–4 h for pads or tampons.

  • Do your period panties leak?

No, menstrual panties do not leak as long as they are properly used and cared for. However, you should observe your body and adjust how long you wear them according to your flow.

  • Do you feel wet in your period panties?

If menstrual panties are washed properly, they do not lose absorbency and should continue to wick moisture into the absorbent layer.

  • Does your period panties emit an unpleasant odor?

No, unpleasant odor can sometimes occur if you have an intimate infection.

  • How often should you change menstrual panties?

You should change your pad or tampon every 3-4 hours depending on your flow. Menstrual underwear only needs to be changed twice a day.

  • How many pairs of period underwear should I buy?

We recommend buying 2 pairs of panties. You wear one while the other is already washed and waiting, but if you want to be sure that on those days there will always be a freshly washed, clean pair ready for you, you can stock up on even more. The optimal number is 3 pairs.

designed to fit your body – available in 4 sizes: S, M, L and XL

How to wash and care for products?

  1. Wash before first use.
  2. After use, we recommend rinsing and/or allowing to soak before washing.
  3. Can be hand or machine washed with the rest of your laundry or in a separate laundry bag (if you prefer).
  4. If using a washing machine, wash at a temperature no higher than 40º.
  5. For proper care, we recommend using neutral soaps. Avoid using chlorine, bleach, fabric softeners, natural oils, or Marseille soap, as they may affect absorption.
  6. Do not use a dryer to dry your laundry as this may reduce their absorbency.

We are the only brand on the market that guarantees the constant absorbency of our underwear for up to 100 washes!

When you follow the manufacturer’s washing and drying instructions, Masmi menstrual underwear will retain its properties for up to 400 washes! Reusable hygiene products provide safety, high absorbency, full freedom of movement and great comfort, while also being very economical.

composition:

96% certified organic cotton, 4% elastane

absorbent layer: 97% certified organic cotton, 3% PU

A hypoallergenic product with 4 certificates: GOTS, FSC, VEGAN and COTTON NATURAL.

in black

product suitable for vegans

made in Spain

NOTE: SIZES OF MENSTRUAL UNDERWEAR MAY VARY SLIGHTLY DEPENDING ON THE SERIES, THEREFORE, IF YOUR MEASUREMENTS ARE BETWEEN TWO SIZES, E.G. S AND M, WE RECOMMEND CHOOSING THE LARGER SIZE.

THE PRODUCT IS IN A CARDBOARD PACKAGING SECURELY SECURED WITH A STICKER. ONCE OPENED, FOR HYGIENE REASONS, RETURNS ARE NOT ACCEPTED.

In our store you will also find other models of Masmi Reuse menstrual underwear: the composition and technical absorbency parameters of all Masmi panties are identical.

  1. ELEGANT model – with tulle inserts on the sides of the panties
  2. CLASSIC model – higher waist (by approx. 1-1.5 cm)

If your periods are very heavy and you need even more protection, we recommend Masmi Reuse menstrual panties with increased absorbency:

  1. DOUBLE ABSORBENCY (up to 120 g) with a low rise
  2. TRIPLE ABSORBENCY (up to 166 g) with a high waist,

which you can also find in our store.

Masmi and Silver Care products differ only in external packaging; the product itself is the same. If one type is unavailable in your order, the equivalent from the other brand will be sent.

Size: S, M, L, XL

Manufacturer information

Manufacturer: COHITECH COTTON HIGH TECH, S.L., Colonia La Rabeia, S/n, Balsareny Barcelona, 08-660, Spain, info@masminaturalcotton.com

Exclusion from the right of return and exchange:

Intimate hygiene products such as menstrual underwear, pads, pantyliners, tampons, menstrual cups, etc., once the packaging has been opened, are not eligible for return or exchange.

Legal basis: According to Art. 38 of the Consumer Rights Act of 30.05.2014 and EU Directive 2011/83 of 25.10.2011: the right of withdrawal from a contract concluded away from business premises or at a distance does not apply to a consumer in relation to a contract for the supply of goods delivered in a sealed package which cannot be returned for health protection or hygiene reasons if the package has been opened after delivery.

1. How are Masmi period underwear different from other menstrual underwear?

Masmi underwear stands out from the competition thanks to 100% organic cotton with GOTS certification, free from plastic, polyester, or synthetics, which minimizes the risk of irritation and infections (such as vulvitis, TSS), as confirmed by independent lab studies. They offer the highest absorbency (77-166 g vs 25-50 g in other brands) and guarantee absorbency for up to 100 washes (competitors max 60), without any rustling effect when worn or sitting. They are biodegradable and hypoallergenic. Allegro rankings 2022-2024 rated them the best on the market. Experience the difference at masmi.com.pl!

2. Are Masmi period underwear safe for sensitive skin?

Yes, Masmi period underwear is 100% safe for sensitive skin! Made from certified organic cotton (GOTS certified), they are hypoallergenic and free from toxins, pesticides, dioxins, chlorine, perfumes, or superabsorbents that can cause irritation or intimate infections such as vulvitis. Studies conducted by independent laboratories confirm that organic cotton minimizes the risk of allergies and disruptions to the vaginal microbiome compared to synthetic materials. Discover the comfort and safety of Masmi products – check them out at masmi.com.pl!

3. Why should you choose organic cotton over cheaper alternatives?

Organic cotton, like that used in Masmi underwear, is healthier for intimate health because it's grown without chemical pesticides and fertilizers, eliminating the risk of harmful substances entering your body—the vaginal mucosa can absorb them in just 4-8 seconds! On the other hand, synthetic materials like polymers or viscose can increase the risk of irritation, yeast infections, or even long-term issues such as endometriosis, as indicated by research from the American Endometriosis Association. Masmi offers the natural protection that cheaper products simply can't provide.

3. What does the GOTS certificate mean and why is it important?

The GOTS (Global Organic Textile Standard) certificate guarantees that Masmi underwear is made from organic cotton, produced in a way that’s safe for both the environment and your health, without toxic chemicals or heavy metals. It’s a mark of the highest safety standards—no pesticides, dioxins, or chlorine, which minimizes the risk of infections and allergies. Masmi is the only brand to use such strict criteria, making it stand out on the market. Check the details at masmi.com.pl and see for yourself how important this is for your health!

4. Are Masmi period panties cost-effective, given that their price is higher than pads?

Yes, Masmi panties are an investment that lasts for years! One pair is guaranteed to stay absorbent for up to 100 washes, which means up to 5 years (about 60 periods), while 10 packs of pads or tampons only last 10-12 periods. Thanks to absorbency ranging from 77 g to 166 g (much more than the 25-50 g offered by competitors) and no need for frequent changes, you save both time and money. It’s an economical choice in the long run.

5. Can Masmi panties help with health issues like endometriosis?

Yes, Masmi panties can support intimate health, including for those with endometriosis. Organic cotton, free from dioxins and chemicals, reduces the risk of irritation and hormonal disruptions that can worsen endometriosis symptoms—WHO studies show a link between dioxins and this condition. The breathable structure and hypoallergenic properties of organic cotton offer extra protection against infections.

6. How long can I wear Masmi period panties during my period?

Masmi panties are designed for up to 12 hours of use, thanks to absorbency from 77 g (standard) to 166 g (triple absorbency), which outperforms the competition (25-50 g). They’re perfect for day, night, or travel—no need to change every 2-3 hours like with tampons or pads, so you get exceptional comfort. Care for them as instructed (wash up to 104°F/40°C without bleach) and they’ll last for years. Learn more at masmi.com.pl!

7. Are Masmi panties eco-friendly?

Yes, Masmi panties are 100% biodegradable, thanks to organic cotton instead of plastic. They help reduce menstrual waste, which amounts to 500 billion single-use products worldwide every year. The Masmi factory uses solar panels and a closed water cycle to minimize environmental impact. Make a conscious choice—see details at masmi.com.pl!

8. How should I wash Masmi period panties to maintain their quality?

Wash Masmi panties at up to 104°F/40°C with neutral soap, avoiding bleach and tumble dryers. This guarantees up to 100 washes without losing absorbency (up to 400 with proper care). It’s simple and eco-friendly—you’ll find the instructions at masmi.com.pl. Start taking care of yourself and the planet today!

9. Do Masmi panties leak during heavy periods?

No, Masmi panties won’t leak even during heavy periods, thanks to triple absorbency (up to 166 g). That’s more than the standard 25-50 g from competitors, as confirmed by Allegro rankings from 2022-2024. Choose the right absorbency model and enjoy peace of mind—order at masmi.com.pl!

10. Where can I buy Masmi underwear and how do I use a discount?

You can buy Masmi underwear at masmi.com.pl. Discount programs are available on our website for each product. Check out our offer and start your journey with Masmi today!

Customer Reviews

Based on 5 reviews
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A
Anna Kowalewska

Świetny produkt, córka bardzo zadowolona. Początkowo kupiłam 3 sztuki aby przetestować. Okazało się, że faktycznie działają jak producent zachwala. W tej chwili mamy ich 6 par i w zupełności wystarczają dla nastolatki. Łatwo się piorą, dlugo schną ale są warte swojej ceny. Nie wiem jak będą trwałe bo używane są dopiero kilka miesięcy.

A
Aneta

Idealne

M
Marta

Majtki całkiem wygodne. Poza tym nie przeciekają (ale mam nieobfity okres) materiał też przyjemny Wersja modern jest dla mnie dużo lepsza niż Classic którego stan jest dla mnie za wysoki

D
Dorota K.

wygodne i chłonne , polecam !

Reviews in Other Languages

A
Anna O.

Super

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