As an Amazon Associate, we earn from qualifying purchases. Affiliate links do not affect our ratings. Learn more.

Best Non-Toxic Hair Growth Products

We vetted hair growth products 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:

Formulas made with natural or synthetic ingredients that meet our standard
Free from parabens, PEGs, phthalates, harsh sulfates, BHA/BHT, artificial dyes, formaldehyde and formaldehyde-releasing ingredients, and undisclosed fragrance
Minimal, well-chosen preservatives
Trusted third-party certifications when available
Transparent 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.

Top Pick

ArtNaturals

Organic Rosemary & Castor Hair Growth Oil

Highlights: Cruelty-free, Oil, For Slow growth, Sulfate-free

8.3

Performance score

Where to buy

Amazon
See price

Pros

Lightweight texture that absorbs well without leaving hair greasy or weighed down, even on fine hair.
The included scalp massager is firm but comfortable and helps work the oil into the scalp effectively.
Leaves hair feeling noticeably softer and more nourished, with several people reporting less breakage and split ends over time.
Scent is fresh and pleasant without being overpowering.
Comes pre-mixed and ready to use, which saves the hassle of blending oils separately.

Cons

Hair growth results are inconsistent; several people saw no visible regrowth after weeks of regular use.
The dropper has a weak seal and can spill when pulled from the bottle.
Leaves hair looking visibly oily after application, so plan to wash it out rather than leave it in as a styling product.

A scalp oil you massage in and can either leave until your next wash or rinse out after a few minutes. It's flexible enough to use as a pre-wash treatment or a longer-term leave-in between washes.
The formula has only five plant-based oils and extracts, which is a notably short ingredient list among non-toxic hair growth products in this category.
Comes bundled with a scalp massager, so you don't need to buy one separately to work the oil into your scalp.
Best suited for dry, damaged, or thinning hair. The oil blend is heavy on moisturizing carrier oils, so fine or oily hair types may find it too rich for frequent use.
Expect a noticeable herbal, rosemary-forward scent. It's a true oil (not a serum or lightweight spray), so it will leave hair feeling coated until washed out.

Free email mini-course

Welpr Blueprint: Go Non-Toxic Mini-Course

The 80/20 guide to going non-toxic the easy way.

BetterGRO

Organic Hair Growth Oil

Free From: Cruelty Free
Highlights: Vegan, Cruelty-free, Made in USA, Oil, For Slow growth

8.3

Performance score

Where to buy

Amazon
See price

The oils and botanicals in this blend are infused together over 90 days rather than simply mixed, which is meant to allow the plant compounds to meld more fully before the product reaches your scalp.
Lightweight enough to absorb quickly without leaving hair greasy, with a crisp rosemary-mint scent. It comes in a glass dropper bottle, so you can control exactly how much you apply.
Safe for all hair types including color-treated hair. Among non-toxic hair growth products, this one is geared toward people dealing with thinning, dryness, or postpartum shedding rather than those with already oily scalps.
BetterGRO sources its botanicals regionally (Egyptian black seed, Indian amla) and produces in small batches in the U.S. It's a small business operation, not a subsidiary of a larger beauty conglomerate.
Versatile beyond just scalp use: the dropper format also works for applying small amounts to eyebrows or dry mid-lengths and ends as a pre-wash treatment.

Mamela Naturals

Batana Oil Hair Growth Shampoo

Free From: Non-GMO
Highlights: Cruelty-free, Shampoo, For Thinning hair, Sulfate-free

8.2

Performance score

Where to buy

Amazon
See price

Batana oil is extracted from the nut of the American palm tree native to Central America. It's known for its ability to penetrate the hair shaft directly, locking in moisture and strengthening from the inside rather than just coating the surface.
Mamela Naturals sources their batana oil from La Moskitia, Honduras, where the indigenous Miskito people (called "Tawira," meaning "people of beautiful hair") have harvested it using the same techniques for centuries. The oil is extracted in Honduras and the shampoo is formulated with it here.
Expect a citrusy, earthy scent. Raw batana oil on its own smells like smoky coffee or burnt popcorn, but the shampoo version is blended to be milder.
Designed as a daily-use shampoo for thinning hair in both women and men, across all hair types. Among non-toxic hair growth products, batana-based shampoos are relatively uncommon compared to the more typical biotin or caffeine formulas.
The brand started by selling raw batana oil in 2018 and built a following around single-origin sourcing before expanding into this shampoo format. They pair it with their raw oil as a pre-wash treatment for more intensive results.

Mamela Naturals

Batana Oil for Hair Growth

Free From: Non-GMO
Highlights: Vegan, Oil, For Hair loss, Sulfate-free

8.1

Performance score

Where to buy

Amazon
See price

Batana oil is a traditional hair and skin oil from Honduras, used for centuries by the Miskito people. It's rich in fatty acids and antioxidants that help nourish the scalp and strengthen hair strands.
Sourced directly from the Miskito community in Honduras since 2018, then packaged in the USA. Mamela Naturals imports the raw oil rather than reformulating it domestically.
Expect a strong earthy, smoky-coffee scent that fades over time. The oil itself is dark brown and thick, so a little goes a long way when working it into hair or scalp.
Formulated for all hair types (straight, curly, fine, coarse) and marketed to both men and women dealing with thinning, breakage, or dryness.
Among non-toxic hair growth products, batana oil is less common than rosemary or castor oil blends. It works as a deep-conditioning mask you can leave on for extended periods rather than a lightweight daily serum.

Mamela Naturals

Raw Batana Oil for Hair Growth

Free From: Non-GMO
Highlights: Vegan, Oil, For Hair loss

7.7

Performance score

Where to buy

Amazon
See price

Pros

Softens hair noticeably and works well as a detangler, even on coarse or tightly coiled textures.
Multiple people noticed reduced hair shedding after consistent use.
Doesn't leave hair greasy; the oil absorbs and washes out easily.
Several people observed gradual darkening of grey hair, helping it blend more naturally over time.
A small amount covers well, so the jar lasts longer than the size suggests.

Cons

The product solidifies at room temperature and needs to be warmed between your hands before each use.
Strong roasted coffee and smoky scent is polarizing; a few people found it unpleasant, though most say it fades after application.
Consistency can vary between batches; one person received a gritty texture with bits that didn't dissolve.
Hair growth results are slow and inconsistent; several people saw no change after weeks of regular use.

Raw, unrefined batana oil in a solid paste form, sometimes called ojon oil. It works as a deep-conditioning hair mask that you apply directly to hair and scalp to moisturize, reduce breakage, and address dryness and frizz.
Sourced directly from the Miskito people in La Moskitia, Honduras, where batana oil has been used for centuries as a hair treatment. Mamela Naturals has been importing from their family farm there since 2018.
Works across all hair types, whether straight, curly, fine, or coarse. Can be used as a hot oil treatment or applied as-is, and a small amount goes a long way.
Has a distinctive smoky, earthy coffee-like scent that's noticeable at first but fades within an hour or so. The oil itself is dark brown and rich in texture.
Among non-toxic hair growth products, batana oil is notable for being a single-ingredient, unprocessed oil rather than a formulated blend. This is the raw material itself, not a product built around it.

Just Nutritive

Hair Loss Shampoo

Free From: Cruelty Free
Highlights: Cruelty-free, Made in USA, Fragrance-free, Shampoo, For Hair loss, Sulfate-free

7.6

Performance score

Where to buy

Amazon
See price

Pros

Several people noticed new hair growth within a few weeks of consistent use.
Leaves hair with a silky texture, added body, and noticeable shine.
Gentle enough to use on color-treated hair without accelerating color fade.

Cons

Can leave hair feeling greasy or oily, especially if not rinsed thoroughly.
Results are inconsistent; some people saw no improvement after two months of regular use.
The bottle is small relative to the price point.

More than 20 botanical ingredients work together here, with several specifically included as DHT blockers to help protect hair follicles from a key driver of thinning.
Marketed for both men and women dealing with thinning hair, shedding, or early-stage hair loss. The earlier you start, the more follicles are still active and responsive.
Unlike medicated hair loss treatments, this is a plant-based shampoo with no dependency cycle. You can use it daily or scale back without a rebound effect.
Scented with orange blossom and other essential oils, so it smells like a citrus-forward aromatherapy product rather than a clinical hair loss treatment.
Among non-toxic hair growth products, this one is notable for being cold-processed and hand-mixed in small batches at a facility in South Florida, which the brand says preserves ingredient potency better than industrial heating methods.

Aloe Barbadensis (Aloe Vera Hydrosol)
Betula Lenta (Birch) Oil
Anthemis Nobilis (Chamomile) Oil
Plantago Lanceolata (Plantain) Extract
Salvia Hispanica (Chia Seed)
Hydrolyzed Jojoba Protein
Serenoa Repens (Saw Palmetto) Extract
Equisetum Arvense (Horsetail) Extract
Urtica Dioica (Nettle Root) Extract
Centella Asiatica (Gotu Kola) Extract
Ricinus Communis (Castor Seed) Oil
Decyl Glucoside
Sodium Methyl Cocoyl Taurate
Sodium Lauroyl Isethionate
Cedrus Atlantica (Atlas Cedarwood) Oil
Citrus Sinensis (Orange Peel) Oil
Rosmarinus Officinalis (Rosemary) Oil
Lavandula Angustifolia (Lavender) Oil
Cocos Nucifera (Coconut) Oil
Panthenol (Vitamin B5)
Cucumis Sativus (Cucumber) Extract
Polygonum Multiflorum (Fo-Ti Root) Extract
Glycerin
Borago Officinalis (Borage Seed) Oil
Caprylyl Glycol
Guar Hydroxypropyltrimonium
Methylcellulose
Zinc Oxide
Arnica Montana (Arnica) Extract
Hydrolyzed Rice Protein
Tocopherol (Vitamin E)

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 deserves a close look.

Scalp treatments applied daily or overnight have the most contact time, so their formulation deserves the most attention.
Many hair growth products rely on 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, purposeful 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....

View full profile

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,...

View full profile