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Best Non-Toxic Shower Caps

We vetted shower caps against the Welpr Standard and here are our top picks.

Camille May

Cofounder & Product Curator

Olushola M. Awoyemi

Medical Reviewer, PhD

Here's what we look for:

Natural materials like cotton or linen preferred
Plastic or synthetic components that are bisphenol-free, phthalate-free, and free from PVC
Trusted third-party certifications when available
Transparent sourcing, materials, and manufacturing practices

Best Non-Toxic Shower Caps

On Welpr, terms like "non-toxic," "safer," "cleaner," "healthier," and "vetted" are editorial labels based on our own standard for product assessment. They are not guarantees, certifications, or medical claims. Learn more.

Top Pick

World Amenities

Disposable Shower Caps (25 Pack)

Free From: Plastic Free
Highlights: Plastic-free packaging, Money-back guarantee, Standard, Disposable, Waterproof

8.2

Performance score

Where to buy

Amazon
See price

Pros

Compact individual paper packaging makes them easy to toss in a bag for travel.
Reusable for a few washes before needing a new one.
Versatile enough to double as food covers for bowls, cut produce, and leftovers.

Cons

Runs small; people with thick, long, or curly hair had trouble fitting it all inside.
The texture feels papery rather than like a traditional shower cap.
The gathered ends can be uncomfortable and let water seep in if not positioned exactly at center forehead and nape.

Made from corn starch rather than conventional plastic, so the cap is compostable after use. The packaging is a kraft paper sachet, also plastic-free.
Each cap comes individually wrapped, which keeps things hygienic for travel, vacation rentals, or guest bathrooms.
Clear and lightweight with an elastic edge for a snug fit. It's designed to keep water out during showers but isn't meant for full submersion.
World Amenities is a hospitality supplier based in San Diego whose products end up in hotel rooms and resorts across 70+ countries. These non-toxic shower caps are the consumer-packaged version of what you'd find in a hotel bathroom.
Universal fit intended to work across hair types and lengths, from short to long, curly to straight.

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Budget Pick

tianyamingyue

Flower Bath Cap

Highlights: Standard, Disposable, Waterproof

8.1

Performance score

Where to buy

Amazon
See price

Pros

The inner lining is silky and glides over hair smoothly when putting it on and taking it off.
Keeps hair dry on no-wash days when fully covered.
The floral fabric has a vintage, old-fashioned look that people find charming.

Cons

Runs small; multiple people found it too tight to cover long or thick hair, and a few said it fits more like a child's cap.
The plastic lining makes a noticeable crinkling sound when handling, which may bother people with sound sensitivity.
Water resistance is inconsistent; one person found that splashes on the outer fabric still transferred moisture through to hair.

Double-layer construction pairs a cotton inner lining with a waterproof outer layer, so hair stays dry while the side touching your head feels soft rather than plasticky.
Elastic band adjusts to fit most head sizes and hair lengths, including thick or long hair, without squeezing too tight.
Beyond showers, it works for keeping hair out of the way during facials, cooking, or cleaning, basically any time you want hair tucked away and protected.
One of the more affordable non-toxic shower caps in this category, coming in at roughly half the price of many lined alternatives.
Reusable and easy to clean with a quick rinse after each use.

Laminated Cotton Shop

Organic Cotton Shower Cap

Free From: Plastic Free
Highlights: Money-back guarantee, Standard, Disposable, Waterproof

8.2

Performance score

Where to buy

Etsy
See price

Organic cotton on the inside sits against your hair and scalp, while the outside is a smooth, matte polyurethane laminate that blocks water. It's soft and lightweight rather than the stiff, crinkly feel of a disposable plastic cap.
Doubles as a cover for at-home hair treatments like scalp oiling or hair masks, keeping product off your pillowcase or shower walls while the treatment sits.
The elastic is a strong ribbed style sewn into the cap, which helps it hold its shape through repeated washes instead of stretching out after a few uses.
Rolls up flat for travel or storage, so it's easy to toss in a toiletry bag.
Handmade in a small Melbourne studio by a team of local women using industrial sewing equipment. The shop started in 2012 as a one-person project to replace disposable plastics with washable alternatives, and that's still the entire focus.
Most non-toxic shower caps use similar laminated fabric, but this one is cut and sewn in-house rather than factory-produced, which is uncommon for the category.

Auban

Shower Cap

Highlights: Standard, Disposable, Waterproof

7.9

Performance score

Where to buy

Amazon
See price

Pros

Oversized fit accommodates longer, thicker hair better than standard plastic shower caps.
The terry cloth lining feels comfortable and doesn't leave a forehead crease the way plastic caps do.
When functioning properly, it keeps hair dry through a full shower.

Cons

The elastic band runs tight; a few people with larger heads or arthritic hands found it difficult to put on.
The printed pattern fades or washes off after just a few uses, even without bleach.
Water can seep between the outer layer and the terry cloth lining, and the lining is slow to dry, which led to mildew and mold for several people.
Wispy hair around the ears and neckline tends to escape the cap and get wet.

Double-layer construction with a terry cloth interior and waterproof EVA exterior. The terry lining absorbs steam and moisture that gets trapped inside, which helps prevent frizz between washes.
Sized as an XL cap, so it's built to fit long, thick, or curly hair and braids without crushing your style.
The elastic band is cotton-lined, which means it grips without leaving marks or pulling at your hairline. The soft exterior material also keeps it quieter than crinkly plastic caps in the shower.
Most basic shower caps are single-layer plastic. As a non-toxic shower caps option with a fabric lining, this one doubles as a useful cover during hair masks or deep conditioning treatments.
Machine washable, but the terry lining holds moisture longer than a plain plastic cap, so it needs to fully air dry between uses to stay fresh.

How to Swap to Non-Toxic shower caps:

Here's how to swap to non-toxic shower caps:

What to know about shower caps

Most shower caps are made from synthetic plastics like PVC or polyester, often with elastic bands and waterproof coatings. Since a shower cap sits directly on your head and is used in a warm, steamy environment, the materials it's made from matter more than you might think.

Heat and steam can increase what synthetic materials release, so a cap worn in a hot shower gets more attention than one sitting in a drawer.
Shower caps used daily or several times a week deserve more consideration than ones used occasionally.

Check what your shower cap is made of

Look at the label or packaging of your current shower cap to see what materials it's made from. Many conventional shower caps are made from PVC (vinyl), which can contain phthalates and other chemical softeners.

If your shower cap has a strong plastic smell, that's a sign it may be made from lower-quality synthetic materials.
Check if the cap has a fabric lining — caps with a natural fiber lining like cotton reduce direct contact between plastic and your hair and scalp.

Use your current shower cap more safely

If you're not ready to replace your shower cap right away, a couple of small changes can help. Reducing heat exposure and improving airflow around the cap can make a difference.

Let your shower cap air out between uses instead of storing it in a sealed bag or damp corner — this helps reduce moisture buildup and any off-gassing.
If your cap is made of PVC or smells strongly of plastic, try keeping it out of direct contact with very hot water and steam by putting it on after you step out of the main stream.

Choose a cleaner shower cap

Look for shower caps made with natural fiber linings like organic cotton or silk, with a waterproof outer layer that is free of PVC, phthalates, and PFAS. Simpler materials and fewer chemical treatments make for a better cap.

Prefer caps with a PEVA or TPU waterproof layer instead of PVC — and bonus points if the lining is organic cotton, silk, or another natural fiber.
Click the button above to shop Welpr Approved shower caps.

Camille May

Cofounder & Product Curator

Camille May is the co-creator of Welpr and a guide for clean living. After selling her last company in the health food space, she went non-toxic while working to heal an autoimmune condition....

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Olushola M. Awoyemi

Medical Reviewer, PhD

Olushola M. Awoyemi (aka Shola) is a board-certified toxicologist and a research scientist with a PhD in Environmental Toxicology. Shola's long-term ambition is to be recognized as a world-renowned expert in toxicology,...

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