If you’ve ever started looking into sustainable fashion, you’ve probably come across the term non-toxic clothing. It sounds simple enough, but once you dig a little deeper, it can quickly become overwhelming. Because the truth is, most clothing isn’t as “clean” as we might think.
From synthetic dyes to chemical finishes, many garments are treated with substances that can linger in the fabric long after they’re made. And since our clothes sit directly on our skin every day, it’s only natural to start questioning what we’re actually wearing.
The good news is, you don’t need to overhaul your entire wardrobe overnight. Building a more thoughtful, lower-tox wardrobe is about understanding what to look for, starting with fabrics, certifications, and how clothing is made 🙂
What Is Non-Toxic Clothing?
Non-toxic clothing refers to garments made without harmful chemicals that can impact both human health and the environment. While most of us think about what we put on our bodies in terms of style or comfort, what’s often overlooked is what’s actually in our clothing.
From fiber production to dyeing and finishing, conventional fashion relies heavily on chemical processes. Many of these substances don’t fully wash out and can remain on the fabric long after it reaches your closet. This is especially important for pieces worn close to the skin, like underwear, activewear, sleepwear, and children’s clothing. Non-toxic clothing aims to reduce that exposure.
This often includes avoiding substances like:
- Formaldehyde (used to prevent wrinkles and shrinkage)
- Phthalates (commonly found in synthetic prints and finishes)
- Heavy metals (used in certain dyes)
- PFAS (added for water and stain resistance)
Instead, non-toxic clothing focuses on safer, more intentional choices at every step. You’ll often see an emphasis on natural or low-impact fibers like organic cotton, linen, or wool, along with low-impact dyes and fewer chemical finishes. Just as importantly, these brands tend to be more transparent about how their clothing is made.
Certifications can also play a helpful role here. Standards like OEKO-TEX® or GOTS are designed to test for harmful substances and ensure safer processing, making it easier to identify better options without having to decode every label yourself.
Many fashion brands, including SHEIN, have been found to have hazardous chemicals in their clothing. Read more at Greenpeace’s latest report here.
Non-toxic clothing isn’t about perfection. It’s about reducing your overall exposure to potentially harmful chemicals and choosing pieces that feel better on your skin and align more closely with a healthier home and lifestyle.
Why Most Clothing Isn’t Actually Non-Toxic
Most clothing today isn’t designed with your health in mind; it’s designed for speed, scale, and cost. Over the past few decades, fast fashion has completely reshaped the industry. Brands are expected to release new styles weekly (sometimes daily), which means clothing has to be produced as quickly and cheaply as possible. And when speed becomes the priority, safer materials and thoughtful processes often take a back seat.
To keep up with this demand, many brands rely on:
- Synthetic fibers like polyester, nylon, and acrylic (which are essentially plastic-based and require chemical-heavy production)
- Chemical dyes and finishing treatments to achieve specific colors, textures, or performance claims (like wrinkle-free or stain-resistant)
- Large-scale manufacturing focused on cutting costs rather than minimizing chemical use
The result is clothing that may contain residues from these processes, substances that aren’t always disclosed on labels or easy for consumers to identify. Terms like “soft,” “stretchy,” or “performance” can often signal additional chemical treatments, even if they sound harmless.
At the same time, fast fashion has shifted how we value clothing. We’ve been conditioned to expect low prices, constant newness, and instant gratification. Pieces are worn a handful of times, then replaced. And when clothing is treated as disposable, there’s little incentive for brands to invest in higher-quality, non-toxic materials that are meant to last.
This is how we ended up here: closets full of clothing, but very little transparency around what those pieces are made of… or how they might impact us over time. Choosing non-toxic clothing is, in many ways, a response to this system. It’s about slowing down, asking more questions, and moving away from the idea that clothing should be cheap, replaceable, and produced without consideration for what goes into it.replace quickly. This has led to a system where clothing feels disposable, rather than something meant to last.
What Fabrics Are Actually Safer to Wear?
When it comes to non-toxic clothing, fabric choice matters more than most people realize.
Better options to look for:
- Organic cotton
- Linen
- Hemp
- Wool
- Lyocell (semi-synthetic)
These natural fibers tend to require fewer chemical inputs and are generally more breathable and durable. Of course, no fabric is perfect and certifications help decipher which ones are safer to wear (keep reading for more info).
Fabrics to be more mindful of:
These are synthetic, plastic-based fibers (with the exception of the last one). While they can sometimes be certified for chemical safety, they still come with environmental considerations and may shed microplastics over time.
Certifications That Actually Matter
Certifications can help cut through some of the confusion, but only if you know what they’re measuring.
OEKO-TEX®
Focuses on chemical saftey and tests for harmful substances in finished fabrics.
For a list of our favorite OEKO-TEX clothing brands, you can read this guide here.
GOTS (Global Organic Textile Standard)
Focuses on the entire production process, and covers organic fibers AND environmental & social criteria.
Click here to read more about GOTS.
MADE SAFE®
Screens for harmful chemicals across ingredients and materials, and focuses on non-toxic products.
Best Non-Toxic Clothing Brands
There’s no single perfect brand, but many are taking steps in the right direction by prioritizing safer materials and better production practices.
Look for brands that:
- Use natural or organic fibers
- Avoid unnecessary chemical treatments
- Offer transparency around certifications
How to Build a Non-Toxic Wardrobe (Without Buying Everything New)
One of the biggest misconceptions around non-toxic clothing is that you need to replace everything you own. You don’t.
A more sustainable approach is to:
- Wear what you already have
- Replace items slowly as needed (check out how to build a sustainable wardrobe on a budget)
- Choose better materials moving forward (learn how to read clothing labels)
This reduces waste, saves money, and makes the transition feel much more manageable.
Non-toxic clothing isn’t about perfection. It’s about understanding what goes into the fabrics we wear, asking a few more questions, and making small shifts over time. Because when it comes to sustainability, the goal isn’t to do everything at once. It’s to do better, one piece at a time.
About the Author
Natalie Kay Costello is the founder of Sustainably Chic and has been writing about sustainable fashion for over a decade. Her work focuses on ethical brands, natural fabrics, and helping consumers navigate greenwashing in the fashion industry.
