Laundry isn’t anyone’s favorite chore, but a TikToker might have just made it a little easier. A creator known as @criteriavintage shared a smart trick to clean stubborn sweat stains and collar grime using stuff you probably already have at home.
The trick is simple but surprisingly powerful. It uses a mix of baking soda, dish soap, hydrogen peroxide, and a pinch of super washing soda. That is it! No bleach, no expensive sprays, no gimmicks. Just common ingredients working together to fight the nastiest laundry problems.
@criteriavintage How to brighten and clean a dingy and stained shirt collar. An easy to make DIY solution! #clothingcare #cleaningtiktok #cleaninghacks #laundryhack #stainremoval #stainremover #sustainablefashion #secondhandfashion #thrifttok #thrifttips ♬ original sound - Criteria Vintage
Sweat stains and grimy collars ruin good clothes. That yellowish buildup around the neck? Yeah, we all hate it. But this TikTok laundry hack tackles that problem head-on. According to @criteriavintage, the secret is in how these basic ingredients react with the proteins in sweat and grease.

Planet / Pexels / Baking soda scrubs. Dish soap cuts through oils. Hydrogen peroxide lifts stains. Washing soda amps up the cleaning power. Together, they break down the gunk that makes your white shirt look ten years old.
Users are saying it works so well, they are calling themselves “stain whisperers.”
How to Use the Hack Without Messing It Up
First, you mix equal parts of baking soda, dish soap, and hydrogen peroxide. Then toss in just a pinch of super washing soda. Mix until you get a thick paste. This is your DIY stain remover. No fancy bottles, no plastic waste.
Scoop the paste onto the stained area using a spoon—collars, armpits, anywhere that needs help. Then, take a soft brush, like an old toothbrush, and gently scrub it into the fabric—not too hard. The creator warns that rubbing too hard might spread the stain instead of fixing it.
Let It Sit, Then Let It Soak
Once the paste is worked into the fabric, let it chill. Fifteen to thirty minutes is the sweet spot. If the stain is really bad, you can wait until the paste dries. This gives the ingredients time to do their thing and break down the mess.
After that, toss it in the wash like usual. But if the stain is still there after the wash, don’t put it in the dryer. Heat will lock that stain in for life. Let it air dry and try again if needed. Most people won’t need a second try, though. The creator claims a 98% success rate.

Sarah / Unsplash / What makes this hack smart isn’t just the fact that it works. It is that it doesn’t cost much. Most of us already have these things under the sink or in the laundry room.
Even better, it is eco-friendly. It skips the bleach and avoids harsh chemicals. That means less damage to your clothes and less plastic trash from commercial cleaners. It is simple, cheap, and doesn't mess with your skin or the planet.
The Benefits Go Beyond Stain Removal
This isn’t just about cleaning one shirt. The bigger win is how this hack helps clothes last longer. When you get rid of sweat and grease the right way, you stop them from building up and wearing out the fabric. That means fewer throwaways and fewer shopping trips.
Plus, it also ties into something a lot of people care about now, which is circular fashion. Keeping clothes in rotation instead of sending them to the dump is a small but real way to live more sustainably. A cleaner collar now means a cleaner planet later.
TikTok users are seriously impressed. One person wrote, “This is going to change my life,” and another said, “It works.”