Masmi Reuse Menstrual Underwear – Comfort, Sustainability and Top Quality
Masmi Reuse menstrual panties are an eco-friendly and comfortable alternative to disposable hygiene products such as pads or tampons. They stand out with a timeless, functional high-waist design that provides comfort and confidence. They are made from the healthiest GOTS-certified organic cotton, grown without pesticides, herbicides or chemical fertilizers. Masmi period panties have been recognized as the best menstrual underwear on the market by independent Allegro experts and other independent rankings – see here:
period underwear ranking
- https://allegro.pl/artykul/ranking-majtek-menstruacyjnych-2024–AgMwdkaYeSW
- https://rankedo.pl/menstrual-panties-ranking/
- https://terdeals.com/pl/ranking/1965/top-5-menstrual-panties
Why choose Masmi cotton period panties?
-
100% GOTS-certified organic cotton: The healthiest material. Guarantees no irritation, inflammation or chafing. They are hypoallergenic.
-
Complete discretion: Masmi Reuse underwear does not "rustle" when worn, because the absorbent layer contains no film.
-
Durability and Absorbency Guarantee: We guarantee up to 100 washes without loss of absorbency! With proper care they will retain their properties for up to 400 washes (3–6 years of use).
-
Maximum Absorbency: Up to 77 g (more than 6 super tampons). Provides comfort and safety for up to 12 hours.
-
Versatile Use: Ideal for first periods, for use in extreme conditions (training, travel) and perfect for women after childbirth, with incontinence and discharge.
-
Friendly to the Planet and Your Health: Fully biodegradable. They contain no plastics, artificial fragrances or allergenic ingredients.
-
Savings: The purchase cost is 3 to 6 times lower than buying disposable products over a similar period.
Q&A:
Are period panties worth buying?
Among women who have switched from pads, tampons or cups to menstrual underwear, reviews are very positive. Most admit that Masmi panties pass the test even on the first, heaviest days of the period. You need to remember to change a pad or tampon every 3–4 hours, depending on flow intensity – menstrual underwear only needs to be changed twice a day. 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 you always have a clean pair ready on those days, you can stock up on more. The optimal number is 3 pairs.
Do you use pads or tampons together with period underwear?
Menstrual underwear is designed to provide protection on its own during your period. There is no need to wear an additional pad, but if you feel you’ll be more comfortable with one, you can use it just as you would with regular underwear. You can also wear the briefs for extra protection during your period when using a tampon or menstrual cup.
Are period panties expensive?
Menstrual panties are very efficient and durable, so buying them is definitely economical. One pair can last 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 gradually decrease – 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 you use) than buying 2–3 pairs of panties. On top of that, panties are incomparably more comfortable to use thanks to the longer time between changes – 12 hours for panties vs. 3–4 hours for pads and tampons.
Do your period panties leak?
No, menstrual underwear does not leak as long as it is used and cared for properly. However, you should observe your body and adjust how long you wear the underwear to your needs, depending on how heavy your period is.
Does period underwear smell bad?
An unpleasant odor may sometimes appear if you have an intimate infection.
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.

shaped to your body – available in 4 sizes: S, M, L and XL
How to wash and care for products?
- Wash before first use.
- After use, we recommend rinsing and/or allowing to soak before washing.
- Can be hand or machine washed with the rest of your laundry or in a separate laundry bag (if you prefer).
- If using a washing machine, wash at a temperature no higher than 40º.
- For proper care, we recommend using neutral soaps. Avoid using chlorine, bleach, fabric softeners, natural oils, or Marseille soap, as they may affect absorption.
- 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, great comfort and, at the same time, are very economical.
Ingredients:
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.
Our range also includes other Masmi models with identical composition and absorbency parameters:
- ELEGANT model – with tulle inserts on the sides of the panties + lower waist (by approx. 1-1.5 cm)
- MODERN model – lower waist (by approx. 1-1.5 cm)
For very heavy periods, panties with increased absorbency are also available:
- DOUBLE ABSORBENCY (up to 120 g of liquid) with a low rise
- WITH TRIPLE ABSORBENCY (up to 166 g of liquid) and a high waist
Masmi and Silver Care products differ only in their outer packaging, the product itself is the same. If one brand is unavailable in your order, we will send the equivalent from the other brand.
CERTIFICATES: Suitable for Vegans
Packaging: 1 pc
Size: L, M, S, XL
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!