Plant Based Hair Colour vs Henna: What's the Real Difference?
If you have been researching natural hair colour, you've probably come across two popular options: plant based hair colour and henna.
Many people assume they are the same thing. They are not.
While both use plants, there are significant differences in how they perform, the results they create, the flexibility they offer and the overall client experience.
At Earth Hair Pro, we work with Terre de Couleur, a professional 100% plant based hair colour system designed specifically for salons. It combines carefully selected organic plants to deliver beautiful colour while respecting both the hair and scalp. One of the many plants TdC uses is Henna, but not all their colours are made with Henna!
So, how does TdC compare with traditional henna?
What Is Henna?
Henna comes from the leaves of the Lawsonia inermis plant. When the leaves are dried and ground into a fine powder, they can be mixed with water to create a natural dye.
Pure henna naturally produces warm copper, orange and auburn tones. It has been used for thousands of years to colour hair, skin and fabrics.
Henna can strengthen the hair and add shine, but on its own it offers a fairly limited colour palette. That's why we use Henna in some of our colours, but not all!
'Henna' that isn't really Henna
The traditional Henna colour often gave this plant a bad name by mixing it with other additives, such as metallic salts, lead acetate, silver nitrate, and PPD.
This is not the Henna TdC uses, they use pure Henna and buy whole plants that they grind themselves, so they are the highest quality possible. TdC is PPD free, and free from any other nasty that might be found in those 'fake' Henna dyes.
What Is Plant Based Hair Colour?
Professional plant based hair colour is much more advanced than simply using henna.
Terre de Couleur combines a carefully balanced blend of organic plants including henna, indigo, cassia and many other botanical ingredients. Different combinations create a much wider range of shades while helping to improve the condition of the hair.
Rather than relying on a single plant, professional formulations use multiple botanicals to achieve predictable, salon quality results.
The result is natural looking colour with depth, softness and shine.
The Biggest Differences
Colour Choice
Pure henna is naturally limited to copper and warm red tones.
Professional plant based hair colour can create:
- Warm blondes
- Rich coppers
- Soft browns
- Chocolate tones
- Deep brunettes
- Natural looking greys
- Dark shades using indigo rich blends
This gives both the stylist and client far more flexibility.
Professional Formulation
Many henna products sold online vary greatly in quality.
Some are completely pure, while others contain metallic salts or synthetic additives that can create problems when changing colour later.
Professional plant based systems such as Terre de Couleur use carefully selected ingredients and consistent formulations that have been developed specifically for professional salon use.
Hair Condition
One of the biggest reasons stylists choose plant based hair colour is the improvement in hair quality.
The botanical ingredients coat and strengthen the hair fibre, helping to create:
- More shine
- Increased body
- Improved softness
- Better scalp comfort
- Healthier looking hair
Many clients notice their hair feels thicker after just one application.
Scalp Health
Conventional permanent colour often relies on ingredients such as ammonia, PPD, PTD and other chemicals that may cause irritation for some people.
Terre de Couleur plant colour contains none of these ingredients.
Because it simply mixes with hot water to activate, many clients with sensitive scalps find it a far more comfortable colouring experience.
Does Plant Based Hair Colour Cover Grey Hair?
Yes.
One of the biggest myths is that plant based colour cannot cover grey hair.
Professional systems such as Terre de Couleur are specifically designed to provide excellent grey coverage through a carefully structured application process.
Grey coverage depends on the client's natural hair, percentage of grey and chosen shade, but experienced plant colourists regularly achieve excellent, natural looking results.
Can You Lighten Hair?
This is where expectations need to be realistic.
Neither henna nor plant based hair colour can lighten the natural pigment of the hair in the same way as bleach or conventional permanent colour.
Instead, they work by adding colour and creating beautiful depth, richness and shine.
For many clients, especially those looking for healthier colouring options, this is exactly what they want.
You can apply as a gloss, tone or colour after pre-lightening.
Is It Suitable for Sensitive Clients?
One of the reasons Terre de Couleur has developed such a loyal following is because many salons use it for clients looking for a gentler colouring experience.
This may include people who:
- Prefer naturally derived ingredients
- Have previously experienced sensitivity with conventional colour
- Are looking to reduce their exposure to unnecessary chemicals
- Want a more holistic salon experience
Every client is different, and professional consultation and patch testing should always be carried out where appropriate.
What About Pregnancy?
Many clients ask whether plant based colour is suitable during pregnancy.
Because Terre de Couleur contains only botanical ingredients and mixes with hot water, many expectant mothers choose it as an alternative to conventional colouring.
However, every pregnancy is unique. Clients should always consult their healthcare professional if they have any concerns before any colouring service.
Will It Damage My Hair?
Quite the opposite.
Unlike many conventional colouring systems, plant based colour works by coating and strengthening the outside of the hair rather than disrupting its structure.
Many clients find their hair feels:
- Softer
- Stronger
- Fuller
- Shinier
- Easier to manage
Over time, many notice an overall improvement in hair quality.
Who Is Plant Based Hair Colour Best For?
Professional plant based colour is ideal for clients who:
- Want naturally beautiful colour
- Prioritise hair and scalp health
- Are concerned about unnecessary chemicals
- Want healthier looking hair
- Prefer a more sustainable salon experience
- Appreciate a holistic approach to hair care
The Earth Hair Pro Difference
At Earth Hair Pro, we believe beautiful colour should never come at the expense of stylist health, client health, the planet's health and hair health.
Terre de Couleur is more than simply an alternative to henna. It is a complete professional colouring system that combines colour performance with exceptional hair condition, scalp comfort and naturally beautiful results.
For salons, it opens the door to clients seeking healthier, more conscious hair care.
For clients, it offers the confidence that their colour appointment can support both beautiful hair and overall wellbeing.
Frequently Asked Questions
Is plant based hair colour the same as henna?
No. Henna is one plant that naturally produces copper and red tones. Professional plant based hair colour uses a blend of botanical ingredients to create a much wider range of salon quality shades.
Does plant based hair colour contain henna?
Many professional systems, including Terre de Couleur, include henna as one of several carefully balanced botanical ingredients, alongside plants such as indigo and cassia.
Is plant based hair colour better than henna?
Neither is necessarily better, but professional plant based systems offer greater colour choice, more predictable results and are designed specifically for salon use.
Can plant based hair colour cover grey hair?
Yes. When applied correctly by a trained stylist, professional plant based colour can provide excellent grey coverage while maintaining a natural finish.
Does plant based hair colour damage hair?
No. Plant based colour helps improve the appearance and feel of the hair, leaving it looking shinier, fuller and healthier.
Final Thoughts
Henna has played an important role in natural hair colouring for centuries, but professional plant based hair colour has taken botanical colouring much further.
With a wider choice of shades, improved grey coverage, healthier looking hair and a gentler colouring experience, Terre de Couleur gives salons and clients a professional solution that combines performance with wellbeing.
If you are looking for beautiful colour that puts the health of your hair and scalp first, professional plant based hair colour offers a truly modern approach to natural colouring.
