How Many Pairs of Period Underwear Do I Need?

The number of period underwear you need depends on:

  • Length of your period (days)

  • Flow level (light, moderate, heavy)

  • How often you plan to do laundry

👉 On average:

Period Length No Laundry During Period Laundry Once Mid-Cycle
3 Days 3–6 pairs 2–4 pairs
5 Days 5–10 pairs 3–6 pairs
7 Days 7–12 pairs 4–7 pairs

🔁 You’ll usually want 2 pairs per day (one for day, one for night), unless you wear a backup pad or wash in between.

💰 How Much Does It Cost?

Most period underwear costs $20–$40 per pair, depending on brand and features.

Quantity Average Cost (USD) Example Budget
3 pairs $60–$120 Starter pack
5 pairs $100–$200 Most common
7–10 pairs $140–$300+ Full rotation

💡 Pro tip: Buying in bundles saves money. NYX offers bundles and sales.

👉 Buy Here:
🛍️ NYX Collection Period Underwear – known for comfortable, absorbent, and stylish options.

🌟 How to Choose the Right Period Underwear

1. Know Your Flow

  • Light Flow: Thinner options or thong-style period underwear.

  • Moderate Flow: Mid-rise or classic briefs with absorbent core.

  • Heavy Flow: Full-coverage, high-waisted styles with maximum absorbency.

Tip: Some styles can hold up to 5 tampons’ worth of blood.

2. Pick the Right Material

  • Cotton – breathable, great for sensitive skin

  • Nylon/Spandex blends – sleek, moisture-wicking

  • Bamboo or Modal – soft, antibacterial

3. Consider Style & Fit

  • Bikini cut, high-waisted, boxer brief – choose what you feel confident and comfortable in.

  • Look for leakproof layers and no bulky seams.

🧼 How to Avoid Hygiene Problems

Even the best period underwear won’t stay hygienic if not properly cared for.

✔️ Do This:

  • Rinse right after use (cold water)

  • Wash within 1–2 days

  • Use fragrance-free detergent

  • Air dry completely

❌ Don’t Do This:

  • Don’t leave unwashed for days

  • Don’t use fabric softener (it clogs absorbent layers)

  • Don’t wear the same pair twice without washing

  • Don’t store dirty pairs in plastic bags

📦 Suggested Starter Pack (Example Calculation)

Let’s say you have a 5-day moderate period, do laundry once during your cycle, and wear 2 pairs/day:

You need: 5–6 pairs

Cost:

  • 6 pairs × $25 = $150 USD (approx.)

Shop Recommendation:

🔗 Shop NYX Collection Bundles
They offer:

  • Leakproof options

  • Multiple absorbency levels

  • Soft, stretchy fabrics

  • Sizes for all body types

📝 Summary:

Need Recommendation
How many pairs? 5–7 for most people
Cost estimate $100–$200
Where to buy NYX Collection
How to choose Based on flow, material, and fit
Hygiene tips Rinse, wash cold, air dry, no reuse

 

Period Underwear Calculator

Find out how many pairs you need based on your cycle length and flow level.

 

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