It often begins with a small, bright orange spot on a towel that just came out of the wash. You try stain remover, hot water, even soaking it overnight—yet the mark never fades. Then more appear. Many people assume it’s dirty water, a faulty washing machine, or cheap fabric. But the real explanation is usually much simpler—and more surprising.

In many cases, those orange marks aren’t stains at all. They’re actually bleached spots where the color has been removed from the fabric.

The Most Common Culprit: Benzoyl Peroxide

One of the biggest causes is benzoyl peroxide, a common ingredient in acne treatments, face washes, and spot creams. While it’s effective for skin care, it has a hidden side effect: it can bleach fabric on contact.

If a towel touches your face after you’ve applied a peroxide-based product—even hours later—the chemical can strip dye from the fabric. The result is a bright orange or yellow patch that looks like a stain but is really permanent color loss. Washing won’t fix it because the dye is already gone.

This is why many people notice the problem on pillowcases, face towels, and bath towels used after skincare routines.

Other Possible Causes

Although benzoyl peroxide is the top reason, it’s not the only one.

High iron in water
Homes with iron-rich water can see rust-colored marks on fabrics. These stains often become more visible after drying and may appear across multiple items, not just towels.

Hair and beauty products
Hair dyes, tinted shampoos, and self-tanners can transfer pigment onto towels. Sometimes the color isn’t obvious when wet but shows up after washing and drying.

Cleaning products
Some bathroom cleaners contain bleaching agents that can splash onto towels without you noticing. Even a tiny droplet can remove dye.

How to Prevent Orange Marks

The good news is prevention is easy once you know the cause.

• Use white towels for your face if you use acne treatments
• Let skincare products fully absorb and dry before using towels
• Wash hands after applying peroxide-based products
• Consider a water filter if your home has high iron levels
• Keep towels away from strong cleaning sprays

What to Do With Affected Towels

If the marks are already there, they usually can’t be reversed. But you still have options.

• Repurpose them as cleaning cloths
• Re-dye darker towels with fabric dye
• Keep them as designated “skincare towels”

A Simple Chemistry Lesson

What feels like a laundry mystery is often just everyday chemistry. Many personal care products are powerful enough to change fabric color permanently. Once you recognize the cause, it becomes much easier to manage.

If orange spots keep appearing on your towels, take a look at your skincare and water first. A small habit change can save your linens—and your frustration.