Masmi

Masmi Period underwear with triple absorbency (166 g absorbency), high waist (sizes: S, M, L, XL) 1 pc.

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Period underwear with the highest absorbency on the market, made from the healthiest GOTS-certified organic cotton, grown without pesticides, herbicides or chemical fertilizers.
Our underwear is a hypoallergenic product, holding as many as 4 certifications: GOTS, FSC, VEGAN and COTTON NATURAL.
This is reusable underwear worn during menstruation, replacing pads, tampons and other intimate hygiene products for women.
  • Compared to period underwear from other manufacturers that absorb up to 50 grams of liquid, these panties have triple absorbency: up to 166 grams of menstrual blood.
  • Regular period underwear has one absorbent layer, while these panties have four breathable absorbent layers made from special 3D fabric, made of organic cotton, guaranteeing maximum absorbency of the underwear.
  • Increased absorbency (up to 166 grams of liquid) - that's more than 13 super-size tampons. It guarantees comfort and protection throughout the day or night. No stains on clothes after a full day at work/school and on bedding in the morning.
  • Our underwear has been recognized as the best on the market by independent Allegro experts and other independent rankings - see here:
period underwear ranking (copy the link into your browser):
  1. https://allegro.pl/artykul/ranking-majtek-menstruacyjnych-2022-AgMwdkaYeSWnych 2022 – Allegro.pl
  2. https://rankedo.pl/majtki-menstruacyjne-ranking/

Why choose Masmi period underwear?

  • 100% GOTS-certified organic cotton - is the healthiest material period underwear can be made from. It prevents irritation of intimate areas, inflammations, yeast infections or chafing. The underwear is hypoallergenic.
  • Our underwear does not “rustle” when worn, because it contains no foil (polyurethane, polyester, etc.) in the absorbent layer – 100% discretion and peace of mind for you in any situation.
  • Guarantee for up to 100 washes without loss of absorbency! - As the only brand on the market we offer this guarantee on our underwear.
  • When following the manufacturer's washing instructions, Masmi underwear will retain its properties for up to 400 washes without loss of absorbency!
  • The best solution for first periods - high absorbency and long wear time combined with the simplest use compared to inserting a tampon or changing a pad give girls unmatched comfort during these important days – one pair is enough for a full day at school.
  • Great performance in extreme conditions - during training, on a trip, on a plane, while traveling, during long meetings or conferences + all other everyday situations where changing a pad, tampon or emptying a cup can be difficult - you don’t have to give up your plans!
  • They are an excellent solution for postpartum women, for urinary incontinence, discharge and for women with disabilities - you save time and money with unmatched comfort of use.
  • They are planet-friendly - fully biodegradable, no ingredient was tested on animals, they contain no superabsorbents, foils, plastics, artificial fragrance additives or allergenic components.
  • The best economic choice among all intimate hygiene products!

Q&A :
  • Is it worth buying period underwear?

Among women who switched pads, tampons or cups to period underwear, the reviews are very positive. Most admit that Masmi underwear performs well even on heavy-flow first days. You need to remember to change a pad or tampon every 3-4 hours depending on flow intensity – Period underwear only needs to be changed twice a day. We recommend buying 2 pairs – wear one and the other stays clean and ready, but if you want extra assurance you can have more pairs. The optimal amount is 3 pieces.

  • Do you use a pad or tampon together with period underwear?

Period underwear is designed to provide protection on its own during menstruation. There is no need to wear an additional pad, but if you feel more comfortable with a pad, you can use one just as with regular underwear. You can also wear period underwear for extra protection while using a tampon or menstrual cup.

  • Are period panties expensive?

Period underwear is very efficient and durable, so purchasing it is definitely economical. One pair can serve for 3-4 years without loss of absorbency. With proper washing and drying care, this period can extend to even 6 years (remember that panties may last longer, but absorbency will slightly decrease - this process will not be noticeable to you). The cost of pads or tampons over a similar period is 3 to 6 times higher (depending on the brand) than buying 2-3 pairs of underwear. Added to that is the incomparable comfort due to longer time between changes - 12 h for underwear vs 3-4 h for pads and tampons.

  • Do period panties leak?

No, period underwear does not leak if used and cared for properly. However, you should observe your body and adjust wearing time according to your flow intensity.

  • Does menstrual underwear produce bad odor?

An unpleasant odor may sometimes appear when you have an intimate infection.

  • Can you feel dampness in period underwear?

If period underwear is washed correctly, it does not lose absorbency and should keep up with wicking moisture into the absorbent layer.

fitted to your body - available in 4 sizes: S, M, L and XL


How to wash and care for the products?
  1. Wash before first use.
  2. After use we recommend rinsing and/or soaking before washing.
  3. Can be washed by hand or in the washing machine with other laundry or in a separate laundry bag (if you prefer).
  4. If using a machine, wash at no higher than 40º.
  5. For proper care, use neutral soaps. Do not use chlorine, bleaches, fabric softeners, natural oils or Marseille soap, as they can affect absorbency quality.
  6. Do not use a tumble dryer, as it may reduce their absorbency.

As the only brand on the market we guarantee unchanged absorbency of our underwear for up to 100 washes!

When following the manufacturer's washing and drying instructions, Masmi menstrual underwear will retain its properties for up to 400 washes!
Reusable hygiene articles provide safety, high absorbency, full freedom of movement, great comfort and are extremely economical.

composition:

96% certified organic cotton, 4% elastane

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

in black

product suitable for vegans

made in Spain

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

THE PRODUCT COMES IN CARDBOARD PACKAGING SEALED WITH A STICKER. FOR HYGIENE REASONS, RETURNS ARE NOT ACCEPTED AFTER OPENING.

Masmi and Silver Care products differ only in external packaging, the product is the same. If one brand is unavailable in an 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 right of return and exchange: Intimate hygiene products such as menstrual underwear, sanitary pads with wings, panty liners, tampons, menstrual cups, etc., once the packaging has been opened, are not subject to return or exchange. Legal basis: pursuant 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 off-premises or at a distance does not apply to the consumer in relation to a contract where the subject matter is goods supplied in sealed packaging which cannot be returned after opening for reasons of health protection or hygiene, if the packaging has been opened after delivery.

1. How do Masmi panties differ from other period underwear?

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

2. Are Masmi period panties safe for sensitive skin?

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

3. Why choose organic cotton instead of cheaper alternatives?

Organic cotton, as used in Masmi panties, is healthier for intimate health because it is grown without chemical pesticides and fertilizers, eliminating the risk of harmful substances entering the body — the vaginal mucosa can absorb them within 4–8 seconds! Synthetic materials, e.g., polymers or viscose, can increase the risk of irritation, fungal infections or even long-term issues such as endometriosis, as indicated by research from the American Endometriosis Society. Masmi offers the natural protection that cheaper products do not.

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

The GOTS (Global Organic Textile Standard) certificate guarantees that Masmi panties are made from organic cotton, produced in an environmentally and health-friendly way, without toxic chemicals or heavy metals. It confirms the highest safety standards — no pesticides, dioxins or chlorine, which minimizes the risk of infections and allergies. Masmi is unique in applying such strict criteria, which sets it apart on the market. Check details at masmi.com.pl and see how important this is for your health!

4. Are Masmi period panties cost-effective since they are more expensive than pads?

Yes, Masmi panties are an investment for years! One pair has an absorbency guarantee for up to 100 washes, which can be up to 5 years (approx. 60 periods), while 10 packs of pads or tampons last 10–12 periods. With absorbency from 77 g to 166 g (significantly more than 25–50 g from competitors) and no need for frequent changes, you save time and money. It’s an economical choice long-term.

5. Can Masmi panties help with health issues, e.g., endometriosis?

Yes, Masmi panties can support intimate health, including with endometriosis. Organic cotton, free from dioxins and chemicals, reduces the risk of irritation and hormonal disturbances that can worsen endometriosis symptoms — WHO research indicates a link between dioxins and this condition. The breathable structure and hypoallergenic properties of organic cotton additionally protect against infections.

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

Masmi panties are designed for use for up to 12 hours thanks to absorbency from 77 g (standard) to 166 g (triple absorbency), outperforming competitors (25–50 g). They are ideal for day, night or travel — no need to change every 2–3 hours like with tampons or pads, providing exceptional comfort. Care for them according to the instructions (wash up to 40°C without bleaches), and they will serve you for years. Learn more at masmi.com.pl!

7. Are Masmi panties ecological?

Yes, Masmi panties are 100% biodegradable thanks to organic cotton instead of plastic. They reduce menstrual waste — worldwide 500 billion single-use items are generated each year. Masmi’s factory uses solar panels and a closed water circuit, minimizing environmental impact. Choose consciously — check details at masmi.com.pl!

8. How do I wash Masmi period panties to preserve their properties?

Wash Masmi panties at up to 40°C with a neutral soap, avoiding bleaches and tumble drying, which guarantees up to 100 washes without loss of absorbency (even up to 400 with proper care). It’s simple and ecological — instructions are at masmi.com.pl. Start caring for yourself and the planet today!

9. Do Masmi panties leak during heavy periods?

No, Masmi panties do not leak even during heavy menstruation thanks to triple absorbency (up to 166 g). That’s more than the standard 25–50 g from competitors, as confirmed by Allegro rankings 2022–2024. Choose the model with appropriate absorbency and enjoy confidence — order at masmi.com.pl!

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

You can buy Masmi panties at masmi.com.pl. Discount programs are available on our site on each product page. Check the offer and start your Masmi journey today!

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Regular price 165,99 zł
Sale price 165,99 zł Regular price