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Best Non-Toxic Hair Relaxers

We vetted hair relaxers 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

The Best Non-Toxic Hair Relaxers

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.

Meets the Welpr Standard

Top Pick

Pura d'or

Rosehip Seed Oil Hair Relaxer

Free From: Cruelty Free
Certified: PETA Certified
Highlights: Vegan, Cruelty-free, Made in USA, Hypoallergenic, No synthetic fragrance, Recyclable packaging, Money-back guarantee

8.8

Performance score

Where to buy

Amazon
See price

Pros

Absorbs quickly without leaving a greasy feel, just hydrated skin.
Works well as the last step of a nighttime routine; multiple people wake up to noticeably softer skin.
The 4 oz bottle is substantially larger than most competing options, lasting several months of daily use.
Doubles as a makeup remover and moisturizer, which can simplify a multi-step routine.

Cons

Color and consistency vary between batches; some bottles arrive golden, others clear or deep orange, which has frustrated repeat buyers.
The scent is earthy and vitamin-like rather than floral; a few people found it off-putting.
The bottle may not appear completely full upon arrival.

Despite the "hair relaxer" label, this is a single-ingredient pure rosehip seed oil, not a chemical straightening treatment. It works by coating and conditioning hair strands to help manage frizz and soften texture over time.
Cold-pressed and unfiltered, which preserves more of the oil's natural nutrient profile than refined versions. The seeds are sourced from Chile.
Light and silky with a subtle earthy scent and a natural orange tint. Absorbs without heavy greasiness, and a small amount goes a long way.
Comes in an amber glass bottle with a pump dispenser instead of a dropper, which helps avoid contaminating the oil with fingers or exposure to air.
Works as a multi-use oil for face, body, and hair rather than a dedicated hair-only product. Among non-toxic hair relaxers, it functions more like a conditioning treatment than a traditional relaxer that alters hair structure.

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Meets the Welpr Standard

Baka Beautiful

Natural Hair Relaxer Trio

Highlights: Fragrance-free

8.2

Performance score

Where to buy

Amazon
See price

A dry powder blend of herbs and clay that you mix with water (or the brand's rose water) to form a paste, then apply to damp hair. It works by gradually loosening your natural curl pattern over multiple applications rather than chemically breaking down the hair's structure.
Unlike conventional relaxers that use lye or no-lye chemicals to permanently straighten, this is one of the few non-toxic hair relaxers that loosens and defines curls without altering the hair's internal bonds. It won't straighten your hair; it makes the existing pattern more manageable.
Safe to use on chemically processed hair, locs, and natural hair, and mild enough for teens and pre-teens. The brand also markets it as a facial mask, since the same herb-and-clay base works on skin.
The formula traces back to a North African herbalist the founder met while traveling through 19 countries in Africa searching for how women managed textured hair without chemicals. The herbs and clay have been imported and sold under the Baka Beautiful name since 1990.
Each application is essentially a hair spa treatment: you apply the paste, cover with the included hydration cap to retain body heat and moisture, and leave it on with no strict time limit. Results are gradual, with each session loosening the curl a bit more.

How to Swap to Non-Toxic hair relaxers:

Here's how to swap to non-toxic hair relaxers:

What to know about hair relaxers

Hair relaxers are designed to break and restructure the bonds in your hair, which means they use strong chemical formulations that sit directly on your scalp and hair for extended periods. Because of this prolonged scalp contact and the potency of the ingredients involved, Welpr pays close attention to what's in the formula.

Relaxers often contain harsh preservatives, synthetic fragrances, endocrine disruptors like parabens or phthalates, and formaldehyde-releasing ingredients — all of which Welpr screens for.
Since relaxers are applied directly to the scalp and left on for minutes at a time, they rank high on Welpr's risk framework for both skin contact and proximity.

Check what's in your current relaxer

Take a closer look at the relaxer you currently use by scanning its ingredient label with the Welpr Personal Care and Cosmetic Scanner. This will flag any concerning ingredients so you can see how your product measures up.

Start with the relaxer you use most often — if you rotate between products, check the one that touches your scalp for the longest time first.
Look for red flags on the label like "fragrance" or "parfum" without further detail, as well as ingredients ending in "-paraben" or any mention of formaldehyde.

Use your current relaxer more carefully

If you're not ready to switch relaxers right away, small changes in how you apply and time your treatments can reduce what your scalp absorbs. Replacing a product like this takes research, so these steps can help in the meantime.

Apply in a well-ventilated room and avoid leaving the relaxer on longer than the minimum time needed — extra time on the scalp means more absorption.
Space out treatments as much as your routine allows, and apply petroleum jelly or a protective balm to your hairline and ears to create a barrier between the product and exposed skin.

Choose a cleaner hair relaxer

Look for relaxers with simpler formulations that skip synthetic fragrances, parabens, phthalates, formaldehyde-releasers, and harsh preservatives. Hair relaxers are a tough category to make fully clean, so Welpr selects the safest options available and clearly explains what each product is made from and what it's free from.

Prioritize products that are fragrance-free or scented only with essential oils, carry certifications like EWG VERIFIED™ or MADE SAFE®, and list every ingredient transparently on the label.
Click the button above to shop Welpr Approved hair relaxers.

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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