Light Mountain
Henna Hair Color & Conditioner
Est. Price$24.99
10.0
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Vegan
Cruelty-free
Henna
Powder
Ammonia-free
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Best Non-Toxic Hair Dyes
We vetted hair dyes against the Welpr Standard and here are our top picks.
Cofounder & Product Curator
Medical Reviewer, PhD
Here's what we look for:
- Simple formulations using fully natural or safe synthetic ingredients
- No parabens, PEGs, phthalates, harsh sulfates, BHA/BHT, artificial dyes, formaldehyde or formaldehyde releasers, or undisclosed synthetic fragrance (unless certified safe)
- Minimal, necessary preservatives only
- Trusted third-party certifications when available
- Transparent sourcing, ingredients, and manufacturing practices
Best Non-Toxic Hair Dyes
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.
Free email mini-course
Welpr Blueprint: Go Non-Toxic Mini-Course
The 80/20 guide to going non-toxic the easy way.
Rainbow Research
Henna Hair Color & Conditioner
Est. Price$15.95
9.2
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Vegan
Cruelty-free
Henna
Powder
ONC Naturalcolors
Heat Activated Healthier Permanent Hair Dye
Est. Price$38.50
8.5
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Vegan
Cruelty-free
Recyclable packaging
Permanent
Gel
Ammonia-free
Hally
Foaming Semi-Permanent Hair Dye Kit
Est. Price$22
7.8
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Vegan
Cruelty-free
EU safety standards
Recyclable packaging
Demi-permanent
Foam
Ammonia-free
Radico
Color Me Organic Long Lasting Hair Color
Est. Price$21.59
7.0
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Vegan
Fragrance-free
Henna
Powder
Ammonia-free
How to Swap to Non-Toxic hair dyes:
Here's how to swap to non-toxic hair dyes:
What to know about hair dye
Hair dye is a product that sits on your scalp and hair for extended periods during application, and your scalp is one of the most absorbent areas of skin. Many conventional hair dyes rely on synthetic fragrances, harsh preservatives, and pigments that may contain heavy metals or other unwanted additives.
- Because hair dye has prolonged contact with your scalp and is often used near your face, the formulation matters more than with a quick rinse-off product.
- If you dye your hair frequently, paying attention to what's in your formula is especially worthwhile.
Review what you already use
Check your current hair dye by scanning it with the Welpr Personal Care and Cosmetic Scanner. This will flag ingredients worth knowing about so you can see how your product stacks up.
- Look for "fragrance" or "parfum" on the ingredient list — these are catch-all terms that can hide dozens of undisclosed synthetic ingredients.
- If you use more than one hair product during the dyeing process (developer, toner, conditioner), scan each one separately.
Use your current hair dye more safely
If you're not ready to switch yet, small changes during application can reduce what your scalp and skin absorb. Replacing a product you already bought isn't always practical, so these steps can help in the meantime.
- Apply hair dye in a well-ventilated area — open a window or turn on a bathroom fan to reduce what you breathe in.
- Avoid leaving dye on longer than the directions suggest, and rinse thoroughly to minimize residue on your scalp.
Choose cleaner replacements
Look for hair dyes with simple, intentional formulations. Welpr prioritizes products free from harsh preservatives, parabens, phthalates, and formaldehyde-releasers. Safer pigments and naturally derived ingredients are a strong sign of a cleaner option.
- Choose products that are fragrance-free or scented only with essential oils, and look for certifications like EWG VERIFIED™ or MADE SAFE® as a helpful starting point.
- Click the button above to shop Welpr Approved hair dye.
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....
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,...