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Period underwear tested: Drugstore vs my•mense

by Dr. Regina Girgis (physician) & Isabelle Doczy (registered nurse) 

Updated: October 1, 2026 

"Before you buy period underwear next time, read this"

The idea of period underwear actually sounds perfect:
 

Put on the underwear, absorb your period, don't notice anything about it all day, take it off in the evening, wash it out and reuse it for several years.
 

✅ No constant changing of tampons.

✅ No shifting pads.

✅ No period mishaps.

✅ No waste.

✅ More cost-effective.
 

And many women simply reach for a period underwear model from the drugstore for their first try.
 

It doesn't cost much, is right there on the shelf, and the packaging often features impressive claims about absorbency.

So you pick one up.
 

And then comes the first heavier period day:

 

Suddenly the surface feels damp.

You get the feeling that the liquid isn't disappearing or being absorbed quickly enough.

 

The panty feels thicker than expected. Almost like a diaper.
 

Unfortunately, for many women, the conclusion afterwards is:

 

Period underwear just isn't for me.

 

Yet the problem may not be with period underwear itself at all.

But rather with which period underwear you tried.

For "period underwear" initially only describes the product category

Two black pairs of period underwear can look almost identical from the outside.

 

Both can be advertised as having high absorbency.

 

Both can promise to replace several tampons.

 

But what matters is not what is written on the outside of the packaging.
 

What matters is what happens as soon as liquid hits the underwear.
 

➡️ How quickly is it absorbed?

➡️ How large is the absorbent area?

➡️ How is the liquid distributed inside?

➡️ How dry does the surface feel afterwards?

➡️ And how thick does it all feel when worn?
 

This is exactly where enormous differences can arise between different period underwear.

We therefore wanted to make a simple comparison

Two pairs of period panties.

 

One model from the drugstore.

And one pair of panties from my•mense.

 

The same amount of test liquid is applied to both.

 

And at first, everything looks quite similar.

 

But after just a few seconds, a difference already becomes apparent:

 

With one pair, the liquid remains visible on the surface for longer.

It takes time until it is completely absorbed.

 

And when you subsequently run your hand over the surface, it still feels clearly damp.

With my•mense, on the other hand, the liquid is quickly transported away from the surface and distributed into the functional layers underneath.

This ensures a lasting, drier feeling throughout the entire day.

 

That is exactly why, for good period underwear, it is not just the maximum capacity that matters.

But also how the liquid is processed.

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The length of the protected area also makes a difference

Another point that is often barely visible in product images is the actual absorbent area in the panty.

Especially at night, while sitting, or when moving around a lot, blood does not always end up in the exact same spot.

 

A generously sized protective area can therefore provide extra security.

 

At my•mense, the functional zone was deliberately designed to provide protection where it is actually needed in everyday life.

 

This is especially important for women who do not want to use period underwear just as a backup.
 

But rather as full-fledged period protection.

And then there is the point that you only really understand when wearing it

How thick does the panty feel?

Because this is exactly where many women have long had reservations about period underwear.
 

Surely a pair of panties that can absorb a lot of fluid must automatically be thick and padded.

 

Almost like a diaper.
 

But good period underwear doesn't have to work that way.

 

At my•mense, the SafeLayer™ technology was developed so that multiple functional layers work together without creating an unnecessarily bulky panty.
 

The first layer absorbs fluid and wicks it away. The layers underneath store it.

An additional protective layer helps prevent leakage.
 

The goal:

High absorbency, without you constantly feeling like you’re wearing a period product.

That is precisely why a drugstore test can leave a false first impression

If you have already tried period underwear and were disappointed, you might be familiar with this exact feeling:
 

“Too damp.”

“Too thick.”

“After a few hours, I just want to change them.”

“I might as well just use tampons again.”
 

And that is understandable.

 

But that would be like buying one pair of uncomfortable running shoes and then deciding:

 

“Running shoes are just uncomfortable.”
 

The problem isn't necessarily the category. It might simply be the specific product.
 

And that is exactly why it is worth paying attention to more than just the price or the number on the packaging when it comes to period underwear.

TEST PERIOD UNDERWEAR

What my•mense does differently

my•mense was developed with the goal of creating period underwear that women can not only wear instead of a tampon.

But that they also truly enjoy wearing.

 

That is why special emphasis was placed on four things:


✅ Rapid fluid absorption.

So that fluid is wicked away from the surface as quickly as possible.

 

✅ Generous protective area.

So that protection is not limited to just a small area.

 

✅ High absorbency.

Our most absorbent models can offer a capacity of up to five tampons.

 

And a wearing feel that is as thin as possible.

So that you aren't constantly reminded in your everyday life that you are wearing period underwear.

Because the best period protection is the one you don’t have to constantly think about

You want to put on your panties in the morning and go to work.

 

Move around for several hours.

 

Sit in the office.

 

Go grocery shopping.

 

Exercise.
 

Or simply go about your normal everyday life.
 

And not have to check how damp your underwear feels after every trip to the bathroom.
 

Not wonder whether you should change just to be safe.

 

And certainly not feel like you’re wearing a thick pad in your underwear.
 

Period underwear should make your everyday life easier - not just replace tampons with a different problem.

This is why a direct comparison is worth it

At first glance, a budget drugstore period panty might look similar.

 

And for light days or as a backup, it may be perfectly sufficient for some women.

 

However, anyone wanting to use period underwear as their primary form of protection should take a closer look.

Over 200,000 customers have already chosen my•mense

Many of them had already tried other period underwear before.
 

And that is precisely why we keep hearing similar feedback:

 

The difference isn't necessarily apparent when you're just holding the briefs in your hand.
 

You notice it when you wear them.

✅ When liquid disappears quickly.

✅ When the surface feels significantly drier.

✅ When the briefs don't look unnecessarily bulky despite high absorbency.
 

And when, after several hours, you realize you've barely thought about your period at all.

So perhaps period underwear was never the problem.

Maybe you just haven’t found the right one yet.

 

If you’d like to compare my•mense with your current period underwear yourself, now is a particularly good time.

 

Our sale is currently on with over 50% off selected bundles - and with certain packages, you even get an extra pair of panties for free.
 

Test my•mense for yourself now and discover the difference the right period underwear can make.

Test now risk-free

We know: 

Switching to period underwear is a big step. That's why we make it as easy as possible for you:
 

✅ 14-day trial – not convinced? Full refund, no questions asked

✅ Free exchange for wrong size

✅ Personal support – available daily, responds within hours

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Any questions?

How many pairs of panties do I need?

We recommend 4–5 pairs for a complete cycle. This way, you'll always have a fresh pair of panties while the others are being washed.

What if my size doesn't fit?

No problem – free exchange. Our size calculator helps you find the right size.

Are the panties really odor-free?

Yes. SafeLayer™️ technology binds odors through physics, not chemistry. Many customers are surprised at how neutral everything remains.

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