Certifications
Free From
Highlights
Cruelty-free
Oil
For Slow growth
Sulfate-free
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Best Non-Toxic Hair Growth Products
We vetted hair growth products against the Welpr Standard and here are our top picks.
Cofounder & Product Curator
Medical Reviewer, PhD
Here's what we look for:
- Simple formulas with fully natural or safe synthetic ingredients
- No parabens, PEGs, phthalates, harsh sulfates, BHA/BHT, artificial dyes, formaldehyde or formaldehyde-releasing ingredients, or undisclosed synthetic fragrance (unless certified safe)
- Minimal, non-irritating preservatives
- EU-compliant brands with third-party certifications when available
- Full transparency around sourcing, ingredients, and manufacturing practices
Best Non-Toxic Hair Growth Products
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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Certifications
Free From
Highlights
Vegan
Cruelty-free
No synthetic fragrance
Recyclable packaging
Recycled materials
Shampoo
For Thinning hair
Discount Code
WELPR15Certifications
Free From
Highlights
Cruelty-free
Made in USA
No synthetic fragrance
Plastic-free packaging
Shampoo
For Thinning hair
Sulfate-free
Certifications
Free From
Highlights
Cruelty-free
Made in USA
Fragrance-free
Shampoo
For Hair loss
Sulfate-free
Certifications
Free From
Highlights
Vegan
Cruelty-free
Made in USA
Oil
For Slow growth
Certifications
Free From
Highlights
Vegan
Oil
For Hair loss
Certifications
Free From
Highlights
Cruelty-free
Shampoo
For Thinning hair
Sulfate-free
Certifications
Free From
Highlights
Vegan
Oil
For Hair loss
Sulfate-free
How to Swap to Non-Toxic hair growth products:
Here's how to swap to non-toxic hair growth products:
What to know about hair growth products
Hair growth products like serums, oils, and scalp treatments are designed to stay on your skin for extended periods. Because they sit directly on your scalp—which is highly absorbent—what they're made of matters more than with rinse-off products.
- Scalp treatments applied daily or overnight have the most contact time, so their formulation deserves the most attention.
- Many hair growth products contain synthetic fragrances, harsh preservatives, or unnecessary additives that don't contribute to hair health.
Review what you already use
Check the hair growth products you currently have by scanning their ingredient labels with the Welpr Personal Care and Cosmetic Scanner. Start with products you apply most often or leave on your scalp the longest.
- Look for "fragrance" or "parfum" on the label—these are synthetic fragrance catch-alls that can contain undisclosed ingredients.
- Flag any leave-on scalp serums or overnight treatments first, since these have the highest skin contact time.
Use your current hair growth products more carefully
If you're not ready to replace a product right away, small adjustments can reduce how much your scalp absorbs. This is especially helpful for products you already have open or mid-bottle.
- Apply leave-on treatments to targeted areas rather than across your entire scalp to limit the amount of skin contact.
- If a product has a strong synthetic scent, consider using it in a well-ventilated space or reducing how often you apply it.
Choose cleaner hair growth products
Look for hair growth products with simple, functional formulations. The best options use plant-based oils, natural extracts, and minimal ingredients without unnecessary additives or synthetic fragrance.
- Choose products that are fragrance-free or scented only with essential oils, and check for certifications like EWG VERIFIED™ or MADE SAFE® as a helpful starting point.
- Click the button above to shop Welpr Approved hair growth products.
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,...