Why does my period underwear smell like bleach?

If your period underwear smells like bleach, it’s usually because of one or more of these reasons:


Why Does My Period Underwear Smell Like Bleach?

  1. Exposure to Bleach or Chlorine-Based Cleaners
    Sometimes, bleach or chlorine cleaners accidentally get into the wash or rinse water. Even small amounts can leave a strong bleach smell on fabric.

  2. Detergents Containing Bleach or Optical Brighteners
    Some laundry detergents contain bleach additives or optical brighteners that can smell like bleach. These chemicals may not be obvious on the label.

  3. Residue Build-Up from Cleaning Products
    If bleach or strong detergents are used repeatedly or not rinsed thoroughly, residues build up in fabric layers causing a persistent bleach odor.

  4. Reaction with Body Oils and Sweat
    Bleach residues combined with natural body oils or sweat can sometimes produce a strong chemical smell.


How to Fix and Prevent Bleach Smell on Period Underwear

  • Stop Using Bleach or Chlorine Cleaners: Avoid any detergents or stain removers with bleach.

  • Switch to Mild, Fragrance-Free Detergents: Use gentle detergents formulated for sensitive skin and delicate fabrics.

  • Rinse Thoroughly: Make sure your washing machine rinses well to remove all detergent residue.

  • Soak in White Vinegar: A rinse or soak in diluted white vinegar (1 part vinegar to 4 parts water) helps neutralize bleach odors.

  • Avoid Fabric Softeners: They can trap residues and odors in fabric layers.

  • Air Dry Well: Let your underwear dry completely in fresh air to dissipate chemical smells.


If you continue to get bleach smells despite these tips, it might be good to check if your washing machine has a bleach dispenser or residue build-up, and clean it regularly.

If your period underwear smells like bleach, it's likely due to residues from bleach-based detergents or harsh cleaning agents. To preserve the integrity and longevity of your garments, it's essential to switch to a mild, fragrance-free detergent formulated for delicate fabrics. Below are some top recommendations:

Saalt Period Underwear Detergent
Saalt Period Underwear Detergent

€34.06
GoSupps.com + others

4.9
The Laundress Lady Delicate Wash

Luxury Choice
The Laundress Lady Delicate Wash

€25.66
FWRD Germany + others

4.7
Eucalan Kreativset
Eucalan Kreativset

€10.98
Amazon.de - Amazon.de-Seller + others

4.9
Soak Wash Scentless

Scent-Free
Soak Wash Scentless

€13.93
Knit with attitude + others

4.9
Kobayashi Lingerie Soap

Budget-Friendly
Kobayashi Lingerie Soap

€3.45
Ochama + others

4.9
Underwear Laundry Detergent Liquid
Underwear Laundry Detergent Liquid

€12.76
Amazon.de - Amazon.de-Seller

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Top Picks Overview:

  • Saalt Period Underwear Detergent: Specifically designed for period underwear, this detergent is gentle and effectively removes odors without compromising the fabric's integrity.

  • The Laundress Lady Delicate Wash: A luxury option that cleans delicate fabrics while maintaining their softness and color.

  • Eucalan Kreativset: Ideal for handwashing, this set includes a no-rinse formula that's perfect for delicates.

  • Soak Wash Scentless: A scent-free detergent that cleans effectively without leaving any fragrance, suitable for sensitive skin.femalefinest.com

  • Kobayashi Lingerie Soap: A budget-friendly option that gently cleans lingerie and delicates.

  • Underwear Laundry Detergent Liquid: A plant-based detergent that effectively cleans underwear while being eco-friendly.myavni.com+1comparisonlive.com+1

Additional Tips:

  • Avoid Fabric Softeners and Bleach: These can degrade the absorbent layers of your period underwear and cause odors.

  • Rinse Immediately After Use: This helps prevent stains and odors from setting in.

  • Air Dry: Always air dry your period underwear to maintain their shape and functionality.

By choosing the right detergent and following proper care instructions, you can keep your period underwear fresh and odor-free.

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