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Naturtint 5N Review: A Colorful Experience

By Grant Whitmore May 26, 2026 ⏱ 10 min read Updated: Sep 2, 2026
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By Editorial Team · Reviewed for accuracy · Last updated September 2026

Choosing permanent hair color at home means balancing gray coverage, shade accuracy, ingredients, and the risk of irritation. Naturtint 5N Light Chestnut Brown Permanent Hair Color is an ammonia-free option designed to deliver long-lasting brown color with up to 100% gray coverage. Its plant-focused formulation, vegan positioning, and simple home application make it appealing, but ammonia-free does not mean allergy-free. This review explains where Naturtint 5N performs well, what is inside the formula, and what you should know before putting it on your hair.

Quick Verdict

Rating: 8.5/10, Recommended with caveats

Best For: Home color users who want a natural-looking light chestnut brown shade, permanent gray coverage, and an ammonia-free formula.

Bottom Line: Naturtint 5N combines up to 100% gray coverage with a vegan, ammonia-free permanent formula and an included after-color quinoa mask. Its main limitation is that the formula still contains oxidative hair-color ingredients such as PPD and hydrogen peroxide, so proper allergy testing and careful application remain essential.

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Naturtint 5N Key Specifications

Specification Detail
Brand Naturtint
Shade 5N Light Chestnut Brown
Product Type Permanent hair color
Amazon Variant Pack of 1
Gray Coverage Up to 100%
Ammonia Ammonia-free
Formula Positioning Up to 90% naturally derived
Vegan Yes
Cruelty-Free Yes
Other Formula Notes No parabens or heavy metals
Developer Contains hydrogen peroxide
Colorant Note Contains PPD and other permanent hair-color ingredients
After-Color Care Quinoa mask
Certification USDA BioPreferred certified and ISO 16128 compliant
Important Safety Step Skin sensitivity test 48 hours before coloring

What Is Naturtint 5N Light Chestnut Brown?

Naturtint 5N is a permanent home hair color in the brand’s Natural shade family. The 5N shade is described as Light Chestnut Brown, making it most relevant when you want a neutral-looking brown result rather than an ash, red, or strongly golden tone.

The formula is designed for long-lasting color and up to 100% gray coverage. Naturtint markets it as ammonia-free, vegan, cruelty-free, free from parabens and heavy metals, and made with a high percentage of naturally derived ingredients. The kit also uses a developer containing hydrogen peroxide, which is normal for many oxidative permanent hair colors.

This distinction matters. Naturtint may suit you if avoiding ammonia is one of your priorities, but it is still a permanent chemical hair-color system rather than a completely natural plant dye.

Before You Buy: Do not assume ammonia-free means hypoallergenic. Naturtint 5N contains PPD and other oxidative color ingredients. Follow the package warnings and complete the recommended skin sensitivity test 48 hours before every coloring application.

Who Should Buy It?

Best For

  • You want permanent light chestnut brown color with strong gray-coverage potential.
  • You prefer an ammonia-free, vegan, cruelty-free formula.
  • You regularly color at home and want a kit designed for straightforward application.

Skip If

  • You need a PPD-free permanent hair color.
  • You have previously reacted to permanent hair dye or its ingredients.
  • You want a temporary or wash-out color rather than permanent oxidation color.

Gray Coverage and Color Result

Gray coverage is one of the strongest reasons to consider Naturtint 5N. The manufacturer states that the permanent formula can provide up to 100% gray coverage. Because 5N belongs to Naturtint’s Natural color family, it is also positioned as a neutral shade suitable for covering gray rather than creating a highly stylized fashion tone.

Your result can still vary with your starting hair color, previous dye, percentage of gray, hair condition, and application. Permanent hair color is not a paint swatch, so the color shown on the box should be treated as guidance rather than a guaranteed exact result.

Pro Tip: If you have not used 5N before, follow the manufacturer’s instructions for a strand test as well as the required skin sensitivity test. A strand test can give you a better idea of how the shade will look on your current hair.

Formula and Ingredients

Naturtint emphasizes its plant-focused formulation. The 5N product is listed as up to 90% naturally derived and is USDA BioPreferred certified and ISO 16128 compliant. Its ingredient list includes plant-related components such as meadowfoam seed oil and hydrolyzed plant proteins.

The color system is also free from ammonia, parabens, and heavy metals according to the manufacturer. For shoppers trying to avoid ammonia odor or specifically seeking a vegan permanent dye, those are useful distinctions.

However, this is still an oxidative permanent color. The colorant contains p-phenylenediamine, commonly called PPD, while the developer contains hydrogen peroxide. Those ingredients are important to know about if you have a history of reactions to hair dye.

Application and Ease of Use

Naturtint is designed for home application. Amazon’s current product instructions direct you to apply the prepared mixture to the roots first and then work it through the rest of your hair. The listed processing period is 30 minutes, followed by a thorough warm-water rinse.

After rinsing until the water runs clear, the instructions call for applying the Quinoa Mask to wet hair, leaving it on for several minutes, and rinsing again. The mask adds a useful conditioning step after the permanent-color process.

Use the supplied or recommended protective gloves throughout the coloring and rinsing process, protect clothing and nearby surfaces, and follow the instructions in the specific package you receive. Packaging can change, so the leaflet inside your box should take priority over a general online guide.

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How to Use It Correctly

  • Test first: Perform the recommended skin sensitivity test 48 hours before coloring, even if you have used hair color before.
  • Read the current leaflet: Formula or packaging instructions may change, so use the directions supplied with your box.
  • Protect your surroundings: Wear gloves and protect clothing, towels, counters, and other surfaces that could stain.
  • Apply evenly: Follow the root and length application directions carefully so you do not leave obvious untreated areas.
  • Respect processing time: Do not assume leaving permanent color on longer will create a better result.
  • Rinse thoroughly: Continue rinsing as directed before applying the after-color mask.

How It Performs in Real Use

For Covering Gray Roots

Gray coverage is the main use case for 5N. If your existing color is already close to light chestnut brown, root maintenance can be more straightforward than making a major shade change. Careful root saturation matters because missed areas can remain visibly gray.

For Full-Head Color

Naturtint can also work for a complete color refresh when 5N is suitable for your starting shade. Hair length and thickness affect how much product you need, so very long or dense hair may require more product than a shorter style.

For Previously Colored Hair

Previously dyed hair can respond differently from untreated hair because old pigment remains in the hair. A strand test is especially useful if you are switching brands, changing shade families, or applying 5N over an existing permanent color.

For Regular Home Coloring

The simple mix, apply, process, rinse, and condition routine suits people who already color their hair at home. The main ongoing consideration is safety: a previous successful application does not replace the need to follow current allergy-testing instructions.

Hair and Skin Safety

Naturtint’s ammonia-free positioning can make the product attractive if you dislike ammonia-based formulas, but permanent dye can still cause irritation or allergic reactions. The manufacturer specifically advises a skin sensitivity test 48 hours before coloring.

The presence of PPD is particularly relevant for shoppers with known hair-dye sensitivities. If you have experienced swelling, blistering, severe itching, breathing problems, or another significant reaction to hair color in the past, do not rely on marketing terms such as “plant-based” or “ammonia-free” as proof that the formula is suitable for you. Follow the label warnings and seek appropriate professional medical advice when needed.

You should also avoid using hair dye contrary to its labeling or on areas for which it is not intended. The package directions and warnings should always be your primary safety reference.

Pros and Cons

Pros

  • Permanent 5N Light Chestnut Brown shade with up to 100% gray coverage.
  • Ammonia-free formula.
  • Vegan and cruelty-free.
  • Free from parabens and heavy metals according to the manufacturer.
  • Includes an after-color quinoa mask step for conditioning after rinsing.

Cons

  • Contains PPD, so it is not appropriate for shoppers specifically seeking PPD-free hair color.
  • Permanent color results can vary with previous dye, starting shade, gray percentage, and hair condition.
  • Requires careful preparation, allergy testing, processing, and cleanup rather than offering a quick temporary color change.

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What About Its Eco-Conscious Claims?

Naturtint has more substance behind its environmental positioning than a vague “natural” label. The brand identifies this permanent hair color as USDA BioPreferred certified and ISO 16128 compliant, and the 5N formula is described as up to 90% naturally derived.

It is also vegan and cruelty-free. Those points can make 5N more appealing if ingredient sourcing and animal-testing policies influence your buying decision. Still, naturally derived ingredients do not make permanent hair color risk-free, and they should not replace the same safety precautions required with other oxidative dyes.

Is It Worth the Price?

Naturtint 5N makes the most sense if you value the combination of permanent gray coverage, an ammonia-free formula, vegan and cruelty-free positioning, and a recognized biobased certification. Those features give it a clearer identity than a basic permanent box dye that competes mainly on price.

It is less compelling if your top priority is avoiding PPD or if you only need a temporary color change. In those cases, the formula itself matters more than the plant-focused branding.

How It Compares to Alternatives

Garnier Olia is another ammonia-free permanent color line and uses a 60% oil blend, so it is worth comparing if you want an oil-focused mainstream formula. Madison Reed Radiant Hair Color Kit is another home permanent-color option and is marketed without ammonia or PPD, making it a more relevant comparison if avoiding PPD is a major requirement.

Naturtint 5N stands out most for buyers who want the specific 5N Light Chestnut Brown shade, Naturtint’s plant-focused formula, USDA BioPreferred positioning, and up to 100% gray coverage. Your choice should come down to shade match, ingredient sensitivities, and the type of permanent color system you prefer.

Frequently Asked Questions

Is Naturtint 5N ammonia-free?

Yes. Naturtint identifies 5N Light Chestnut Brown as an ammonia-free permanent hair color. It still uses other permanent coloring ingredients, including a hydrogen peroxide developer, so ammonia-free should not be interpreted as chemical-free.

Does Naturtint 5N cover gray hair?

The manufacturer states that the permanent formula provides up to 100% gray coverage. Actual coverage can depend on your amount of gray hair, application, starting color, and hair condition.

Is Naturtint 5N safe for sensitive skin?

Do not assume it is suitable simply because it is ammonia-free. The formula contains PPD and other permanent-color ingredients, and Naturtint instructs users to complete a skin sensitivity test 48 hours before coloring.

Is Naturtint 5N PPD-free?

No. The current ingredient list for Naturtint 5N includes p-phenylenediamine, or PPD. If avoiding PPD is essential for you, this specific formula is not the right choice.

Can Naturtint 5N be used on previously colored hair?

Previously colored hair can be recolored, but the existing pigment may affect the final shade. Follow the manufacturer’s instructions and use a strand test before a full application when you are uncertain about the result.

How long should Naturtint 5N process?

Amazon’s current instructions for this ASIN state a 30-minute processing period before rinsing. Always follow the directions in the package you receive because instructions and packaging can change.

Is Naturtint 5N vegan and cruelty-free?

Yes. Naturtint currently identifies the 5N permanent hair color as vegan and cruelty-free. The product is also listed as USDA BioPreferred certified and ISO 16128 compliant.

Who should skip Naturtint 5N?

Skip it if you specifically need a PPD-free product, want temporary color, or have been advised not to use oxidative permanent hair dye. Anyone with a history of hair-color reactions should follow professional guidance rather than relying on the ammonia-free label.

The Bottom Line

Naturtint 5N Light Chestnut Brown is a strong option if you want permanent neutral-brown color, up to 100% gray coverage, and an ammonia-free formula with vegan and cruelty-free credentials. Its biggest tradeoff is that it still contains PPD and other oxidative hair-color ingredients, so buyers seeking a PPD-free formula or anyone concerned about previous dye reactions should consider another option.

For the right user, its combination of shade, gray coverage, straightforward home application, plant-focused formulation, and after-color conditioning makes it easy to recommend with sensible safety caveats.

Ready to Buy?

Check the latest product details and confirm that 5N Light Chestnut Brown is the right shade before you decide.

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