Choosing the Best Period Underwear: A Guide for Parents

When your daughter starts her period, finding the right menstrual product can feel like a big decision. If she’s not comfortable with pads or tampons, period underwear can be a game-changer.

But with so many options out there, how do you choose the best one? As a menstrual health educator, I’ve helped countless parents navigate this decision. 

Easy to use – No need to insert anything; just wear them like regular underwear.

Comfortable – Soft, breathable fabric that doesn’t shift like pads.

Leak-proof – Multi-layer technology absorbs blood and prevents leaks.

Eco-friendly – Reusable and lasts for years, reducing waste.

Cost-effective – Saves money in the long run compared to disposable products.

If your daughter is new to periods or struggles with pads or tampons, period underwear can make her experience much easier and stress-free.

Period underwear has multiple absorbent layers that trap and hold menstrual blood while keeping moisture away from the skin. The outer layer is waterproof, preventing leaks.

Some pairs are designed for light flow days, while others can absorb as much as 4-5 tampons’ worth of blood—perfect for heavy days or overnight use.

When shopping for period underwear, keep these factors in mind:

1. Absorbency Levels

Not all period underwear is made the same. Choose based on your child’s flow:

• Light absorbency → Holds up to 1 tampon’s worth (good for spotting or backup).

• Medium absorbency → Holds 2-3 tampons’ worth (suitable for most teens).

• Heavy absorbency → Holds 4-5 tampons’ worth (best for heavy flow or overnight use).

If your daughter has a heavy flow, go for high-absorbency options or have extra pairs for changing.

2. Comfort & Fit

The best period underwear should feel like regular underwear—not bulky or uncomfortable. Look for:

Soft, breathable fabric – Cotton, bamboo, or moisture-wicking blends.

Snug but stretchy fit – Ensures comfort without being too tight.

Tag-free design – Prevents itching and irritation.

3. Style Options

Period underwear comes in different styles, just like regular underwear. Let your daughter choose what she feels best in:

• Bikini – Low-rise and stylish.

• Briefs – Classic full coverage, great for everyday wear.

• Boyshorts – Extra protection and good for sports.

• High-waist – Best for overnight or heavy flow days.

4. Leak-Proof Technology

Some period underwear has extra leak-proof layers or gusset protection for added security. This is especially important for school, sports, or overnight wear.

5. Best Brands for Period Underwear

Some trusted brands that parents love include:

• Thinx (BTWN) – Designed specifically for teens, with fun colors and comfy fits.

• Knixteen – Super soft, breathable, and moisture-wicking.

• Modibodi – Great for heavy flow and overnight protection.

• Saalt & Rael – Affordable and highly absorbent.

This depends on her cycle length and how often she wants to do laundry. Here’s a general guide:

Light flow: 3-4 pairs (for backup or occasional use).

Medium flow: 5-6 pairs (to last through a full cycle).

Heavy flow: 7-10 pairs (for daily changes and overnight use).

If she’s using period underwear as her only protection, aim for at least 5-7 pairs so she always has a clean one ready.

To keep period underwear fresh and long-lasting, follow these care tips:

Rinse in cold water after use until the water runs clear.

Machine wash with mild detergent (no fabric softeners—these can reduce absorbency).

Air dry only to maintain the absorbent layers.

With proper care, period underwear can last 2-3 years, making them a smart long-term investment.

Period underwear is great for:

Teens new to their periods – Easy to use and stress-free.

Girls who prefer comfort – Feels like regular underwear.

Active kids – Stays in place for sports and school.

Heavy sleepers – No more stained sheets!

Eco-conscious families – Reduces waste compared to pads and tampons.

However, if your daughter has a very heavy flow, she may prefer using period underwear as backup with a cup or tampon.

Period underwear is a comfortable, leak-proof, and eco-friendly option for teens. It eliminates the hassle of pads and tampons, provides worry-free protection, and helps your daughter feel confident and secure during her period.

Every girl’s period experience is different, so the best choice is the one that makes her feel comfortable and in control.