The softness that reassures. The protection you can rely on.

Yes, and it’s important to know this. GOTS-certified organic cotton is the main material and the only one in direct contact with your skin. This is the layer that touches your intimate areas. The inner layers contain synthetic materials (polyester, polyamide, elastane) that are essential for the underwear’s absorbency and waterproofing. These materials never touch your skin directly, and they are all OEKO-TEX STANDARD 100 certified, including the synthetics. If you’re looking for underwear made with a 100% natural material against your skin, you’re in the right place.

Smoon's microfiber range is designed for maximum performance: up to 12 hours of absorption, with an ultra-thin, patented seamless fabric. The organic cotton range (SMOON CARE) is designed for those who prefer a 100% natural material against their skin: GOTS-certified cotton, with no synthetic fibers against the skin, and protection for up to 8 hours. If you have sensitive skin or have always been concerned about synthetic materials, cotton is the obvious first step.

The cotton period underwear is available in two versions: medium flow and heavy flow. The medium-flow version absorbs the equivalent of 2 to 3 tampons. The heavy-flow version offers greater absorbency. For very heavy flows (endometriosis, postpartum), the microfiber range is still recommended for its maximum capacity.

The panties have been laboratory-tested and approved under gynecological supervision, with a clinical study conducted. The waterproof membrane is certified PFAS-free. For a standard medium or heavy flow, protection is provided for up to 8 hours without leakage. If in doubt, please contact our customer service at contact@smoon-lingerie.com so we can guide you toward the style and size best suited to your flow.

Machine wash at 30°C on a delicate cycle. Do not use fabric softener, Aleppo soap, or a tumble dryer. These precautions preserve the absorbent properties and lifespan of the panties, estimated at 3 years of regular use, or approximately 40 cycles. Quickly rinsing them in cold water after use also extends the fabric’s lifespan.

Smoon offers a 60-day money-back guarantee—even if you have worn and washed the panties. It’s a strict policy: you can test them during a real cycle, wash them, and if they’re not right for you, we’ll refund you. One item per category per customer. If the size isn’t right, exchanges are free in France, Belgium, Switzerland, the Netherlands, and Luxembourg.

For a standard 4- to 5-day cycle, we recommend 3 to 4 pairs of period panties, so you always have one clean, one in use, and one being washed. With the Discovery Duo pack (medium flow + heavy flow), you start with the minimum you need to cover your heaviest days. Our packs of 3 or more pairs come with discounts on the unit price.