What to do with period underwear between washes?

How to Store, Wash, and Choose the Best Materials for Maximum Comfort and Hygiene

Period underwear has revolutionized how people manage their menstrual cycle—no pads, no tampons, just washable, absorbent underwear designed to keep you feeling secure. But once you’ve worn them, what’s the best way to store them until laundry day? And how can you be sure they stay clean, fresh, and last longer?

Let’s explore everything you need to know about what to do with period underwear between washes, how to wash them properly, and how to choose the best materials for your needs.

🌸 What to Do With Period Underwear Between Washes

After wearing your period underwear, especially during heavier flow days, proper care between uses is key to maintaining hygiene and prolonging the life of the garment.

1. Rinse Immediately After Use

Rinse your period underwear in cold water as soon as you take them off. This helps prevent staining and removes most of the menstrual blood. Avoid hot water, as it can set blood stains into the fabric.

2. Store in a Breathable Wet Bag or Container

After rinsing, gently wring out excess water and store the underwear in a breathable wet bag or a small laundry hamper designed for delicates. Avoid plastic bags or airtight containers—these trap moisture and can encourage bacterial growth or odors.

3. Wash Within 24–48 Hours

While it’s okay to store rinsed period underwear for a day or two, it’s best to wash them as soon as possible to prevent lingering smells and bacteria buildup.

🧼 How to Wash Period Underwear (Step-by-Step)

To make sure your period underwear stays hygienic and performs well over time, follow these steps:

Step 1: Rinse Cold

Start with a cold rinse cycle in your washing machine or rinse by hand. This flushes out remaining blood.

Step 2: Use Mild Detergent

Use a fragrance-free, gentle detergent. Avoid bleach, fabric softener, or harsh chemicals—they can break down the absorbent layers and irritate your skin.

Step 3: Wash on a Gentle Cycle

Machine wash on a delicate or gentle cycle in cold water. If you’re hand-washing, soak for 15–20 minutes, then gently agitate and rinse thoroughly.

Step 4: Air Dry Only

Never use a dryer. High heat can damage the moisture-wicking and leakproof layers. Instead, hang dry in a well-ventilated area, away from direct sunlight to preserve elasticity.

📍 Tip: Many brands like NYX Collection also provide specific care instructions—always check the label for the best results.

🩲 What Material Should You Choose for Period Underwear?

The material of period underwear affects how it feels, absorbs, and breathes. Here are some of the most common and recommended materials:

1. Cotton

  • 🌿 Best For: Breathability, sensitive skin

  • 👍 Pros: Natural, soft, and hypoallergenic

  • 👎 Cons: May feel damp during heavier flows unless layered with synthetics

2. Modal

  • 🌱 Best For: Eco-conscious users who want a soft, silky feel

  • 👍 Pros: Sustainable, breathable, and smooth

  • 👎 Cons: Slightly less durable than synthetics if not cared for properly

3. Bamboo Fabric

  • 🍃 Best For: Antibacterial properties and odor control

  • 👍 Pros: Soft, naturally antimicrobial, moisture-wicking

  • 👎 Cons: May be blended with synthetic fibers to improve durability

4. Nylon + Spandex Blends

  • ⚡ Best For: High-absorbency, active wear, leak protection

  • 👍 Pros: Durable, stretchy, holds shape well, fast-drying

  • 👎 Cons: Less breathable than natural fabrics, may not suit very sensitive skin

📌 The NYX Collection offers a range of period underwear that combines comfort and performance using innovative materials like nylon blends with leakproof gussets and moisture-wicking layers—ideal for all-day wear.

🌼 Final Tips for Keeping Period Underwear Fresh

  • ✅ Rinse right away to reduce staining and odor

  • ✅ Wash within two days for best hygiene

  • ✅ Avoid heat—air dry only

  • ✅ Rotate multiple pairs to reduce wear and tear

  • ✅ Use a mesh laundry bag if machine-washing to protect the fabric

Ready to Try or Upgrade Your Period Underwear?

Check out NYX Collection's Period Underwear Collection for options that suit every flow, style, and comfort preference. Whether you’re looking for full coverage or a sleek bikini cut, they’ve got breathable, reusable choices to keep you comfortable and confident every cycle.

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