Quick answer: Lunam period underwear has a soft micromodal outer and a three-layer lining made with bamboo, cotton and polyester. Every material is OEKO-TEX® Standard 100 certified, then independently lab-tested in the US. We tell you everything that's inside, including the polyester, because what matters most is how a fabric has been treated and tested.
Most clothing labels tell you what a fabric is. Very few tell you what it was treated with. For something you wear against your most sensitive skin for days at a time, that second question matters just as much.
What's inside a pair of Lunam?
Outer fabric: micromodal. A fine, wood-based fiber with a silky, second-skin feel that stays soft wash after wash.
Lining: three layers made with bamboo, cotton and polyester. A soft top layer keeps you feeling dry, an absorbent core holds your flow, and a barrier keeps everything in place.
Why is there polyester in the lining?
Polyester helps the lining absorb and hold your flow, which is why it's in there by design. We could hide it. We'd rather tell you.
The polyester is not the problem. The chemicals are. Many textiles, natural or synthetic, go through finishes and treatments you can't see or feel. That's what we test for.
What does OEKO-TEX® Standard 100 mean?
OEKO-TEX® Standard 100 is an independent certification. It means every component of a product, from the fabric to the thread, has been tested for a long list of harmful substances, with stricter limits for items worn close to the skin.
Why we test twice
Certification is our starting point, not our finish line. After OEKO-TEX®, every Lunam product also goes through independent chemical testing at a lab in the US. Because once wasn't enough.
How to choose period underwear you can trust
Does the brand list every material, including the ones that sound less appealing?
Is it certified to a recognized standard such as OEKO-TEX® Standard 100?
Has it been independently tested beyond that standard?
For a full comparison of pads, tampons, cups and period underwear, read the Lunam Pyramid.
Frequently asked questions
Is Lunam period underwear made with polyester?
Yes. The lining contains polyester alongside bamboo and cotton, by design. Every layer is OEKO-TEX® certified.
Is Lunam made with organic cotton?
No. We don't make organic claims for Lunam. Instead, every material is OEKO-TEX® Standard 100 certified and independently lab-tested.
How should I wash Lunam to keep the fabrics soft?
Rinse in cold water, machine wash cold on a gentle cycle, and air dry. No dryer, bleach or fabric softener. See our full care guide.
OEKO-TEX® Standard 100 is an independent certification. It means every component of a product, from the fabric to the thread, has been tested for a long list of harmful substances, with stricter limits for items worn close to the skin.
