How to Wash Period Underwear: Dos and Don'ts

Quick answer

Rinse your period underwear in cold water immediately after wearing, then wash by hand or on a gentle machine cycle with mild detergent. Skip fabric softener and bleach, and always air dry. This routine keeps the absorbent layers working and extends the life of your period panties.

Period underwear is an investment in comfort and sustainability, and how you wash it makes a big difference in how long it lasts. The absorbent layers, waterproof barriers, and soft fabrics need gentle care to keep doing their job.

Whether you wear Love Luna period briefs daily or just on heavier days, a simple washing routine will keep them fresh, odor-free, and ready to wear again. Here are the dos and don'ts, step by step.

Why proper washing matters

Period underwear is built with multiple layers: a moisture-wicking inner layer, absorbent core, waterproof barrier, and outer fabric. Harsh chemicals, hot water, and rough handling can break down these layers, reducing absorbency and causing leaks.

Washing correctly also prevents bacteria buildup and lingering odors. A few mindful habits—like rinsing soon after use and avoiding fabric softener—will keep your period panties in top condition for years.

• Always check the care label on your specific Love Luna product for any special instructions.
• Never wring or twist your period underwear aggressively; it damages the absorbent core.

Step-by-step: How to wash period underwear

Start by rinsing your period underwear in cold water as soon as you take them off. This removes excess blood and prevents stains from setting. You can do this in a sink or a small basin. Avoid hot water, which can set stains and damage the fabric.

Next, wash your period underwear either by hand or in the washing machine. For hand washing, fill a basin with cold water and a small amount of mild detergent. Gently squeeze the fabric to work the soap through, focusing on the gusset area. Rinse thoroughly until the water runs clear.

If machine washing, place your period underwear in a mesh laundry bag and use a gentle cycle with cold water and mild detergent. Wash with similar colors and avoid overloading the machine. Skip the fabric softener and bleach—they coat the fibers and reduce absorbency.

After washing, gently squeeze out excess water (do not wring) and hang or lay flat to air dry. Avoid direct sunlight and never put period underwear in the dryer, as heat can damage the waterproof layer and elastic.

• For extra stain protection, pre-treat with a little diluted mild detergent before washing.
• If you're traveling or short on time, a quick hand wash in cold water is always better than letting them sit.

Common mistakes to avoid

One of the biggest mistakes is using fabric softener or dryer sheets. These products leave a residue that clogs the absorbent layers, making them less effective. Another common error is washing in hot water, which can shrink the fabric and set stains.

Letting period underwear sit for days before washing can also cause odors and bacteria to develop. If you can't wash immediately, rinse them in cold water and hang to dry until you're ready to do a full wash. Never use bleach or harsh stain removers, as they break down the fibers.

Finally, don't put period underwear in the dryer. The heat can warp the waterproof layer and degrade the elastic waistband, leading to leaks and a poor fit.

• Avoid washing with heavy items like jeans or towels that can snag the fabric.
• If you use a stain remover, choose one that is oxygen-based and free of chlorine bleach.

Your period underwear washing routine

1. Rinse immediately after wearing: Rinse in cold water until the water runs clear. This prevents stains and odors from setting. Checkpoint: If you can't wash right away, rinse and hang dry until laundry day.
2. Wash with mild detergent: Hand wash in cold water or use a gentle machine cycle in a mesh bag. Avoid fabric softener and bleach. Checkpoint: Use only a small amount of detergent; excess soap can leave residue.
3. Air dry completely: Lay flat or hang to dry away from direct sunlight. Never use a dryer. Checkpoint: Ensure they are fully dry before storing to prevent mildew.

Love Luna products and their care

• Side Seamfree Period Full Brief: Made with a special seamless knitting technology these briefs are smooth and stretchy, finished with an elastic binding at the leg openings to stop the briefs from riding up. The seamless design means there are no seams to trap residue, so a gentle hand wash or machine wash in a mesh bag is enough to keep them clean without stretching the elastic.
• Period Bikini Brief - Black: Made from a sleek microfibre with a cute lace trim, they look just like normal underwear – the perfect everyday option! Absorbs 10-15ml (2-3 regular tampons) 4 clever layers to lock everything away and keep you dry, comfy and confident The delicate lace trim requires extra care, so hand washing or using a mesh bag on a gentle cycle will prevent snags and keep the lace looking new.

With these simple dos and don'ts, your Love Luna period underwear will stay absorbent, comfortable, and ready for your next cycle. A little care goes a long way.