Certifications
Free From
Highlights
Vegan
Cruelty-free
Made in USA
Hypoallergenic
No synthetic fragrance
Treatment oil
For Dry hair
Lightweight
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Best Non-Toxic Hair Oils
We vetted hair oils 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 Oils
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.
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Welpr Blueprint: Go Non-Toxic Mini-Course
The 80/20 guide to going non-toxic the easy way.
Discount Code
WELPRCertifications
Free From
Highlights
Vegan
Cruelty-free
EU safety standards
0.25 year warranty
Pre-shampoo oil
For Dry hair
Lightweight
Discount Code
WELPR15Certifications
Free From
Highlights
Vegan
Cruelty-free
Made in USA
No synthetic fragrance
Leave-in oil
For Frizz control
Lightweight
Certifications
Free From
Highlights
Cruelty-free
Made in USA
No synthetic fragrance
Recyclable packaging
Recycled materials
Leave-in oil
For Damaged hair
Certifications
Free From
Highlights
Cruelty-free
Made in USA
Pregnancy safe
No synthetic fragrance
Recycled materials
Treatment oil
For Frizz control
Lightweight
Certifications
Free From
Highlights
Vegan
Cruelty-free
Made in USA
Treatment oil
For Frizz control
Certifications
Free From
Highlights
Pre-shampoo oil
For Damaged hair
Lightweight
Certifications
Free From
Highlights
Vegan
Cruelty-free
Recyclable packaging
Leave-in oil
For Scalp health
Lightweight
Certifications
Free From
Highlights
Vegan
Cruelty-free
Made in USA
Pregnancy safe
Breastfeeding safe
Recyclable packaging
Treatment oil
For Frizz control
Lightweight
Certifications
Free From
Highlights
Vegan
Cruelty-free
Made in USA
Fragrance-free
Recyclable packaging
Recycled materials
Overnight oil
For Damaged hair
Lightweight
How to Swap to Non-Toxic hair oils:
Here's how to swap to non-toxic hair oils:
What to know about hair oil
Hair oil is applied directly to your scalp and hair, often daily or multiple times a week. Because it sits on your skin without being rinsed off, what it's made of matters more than you might think.
- Welpr focuses on the base oils, fragrances, and preservatives in hair oils since these sit on your scalp and can be absorbed through the skin.
- Products used on or near the scalp deserve extra attention because the scalp is thin, absorbent skin close to the face.
Review what you already use
Check your current hair oil using the Welpr Personal Care and Cosmetic Scanner. It reads your ingredient label and flags anything that doesn't meet Welpr's standards.
- Look at the ingredient list for the word "fragrance" or "parfum"—these often indicate synthetic scent blends with undisclosed ingredients.
- Start with the hair oil you use most often or apply directly to your scalp, since that one has the most contact with your skin.
Use your current hair oil more safely
If you're not ready to replace your hair oil right away, small adjustments in how you use it can make a difference. Reducing how much you apply and where you apply it helps limit what your skin absorbs.
- Focus application on mid-lengths and ends rather than directly on the scalp, since the scalp absorbs more than the hair shaft.
- Use a small amount—a few drops is usually enough—rather than saturating your hair and skin.
Choose a cleaner hair oil
Look for hair oils with simple, recognizable formulas built around plant-based oils. The best options skip synthetic fragrance, harsh preservatives, and unnecessary additives.
- Choose oils that are unscented or scented only with essential oils or plant extracts, and avoid any label that lists "fragrance" or "parfum" without full disclosure.
- Click the button above to shop Welpr Approved hair oil.
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,...