When people talk about covering white hair with dyeing herbs, the first concept that comes up almost everywhere is always the same: to get a good result, two steps are necessarily required. First a warm phase, then a darker phase. First a base, then the final color. As if this were a universal rule.
The ERIL Method was created precisely to challenge this idea.
Not because the double process is always wrong, but because it cannot be treated as an automatic formula valid for everyone. In plant-based coloring, not all hair reacts the same way. The starting base, structure, porosity, amount of white hair, desired reflection, and the way the pigment binds to the fiber all vary. Ignoring these factors means oversimplifying.
The ERIL Method is an approach designed to read the real hair and create a personalized, technical, and sensible plant-based coloring. Its goal is not to apply rigid rules, but to understand how to achieve the best possible result based on the concrete situation. And that is precisely why, in most cases, it allows for good white hair coverage in just one step, avoiding the double process when it is not really necessary.
What is the ERIL Method
The ERIL Method is a method for analyzing and creating the dyeing mixture based on a precise principle: to properly cover white hair with herbs, it is not enough to choose a color; you must understand how that color should be built for that specific head of hair.
It is therefore not a simple fixed recipe, nor a standard combination to be repeated the same way every time. Instead, it is a system that takes into account all the elements that affect the final result and relates them to one another.
In the ERIL Method, the mixture is created by first assessing the starting base, the temperature of the desired color, the hair structure, porosity, the type of white hair present, and the predictable response of the hair to plant pigments. Only from this analysis can a truly sensible formulation emerge.
A method, not a standard recipe
This is a fundamental distinction. A recipe is a fixed formula to be replicated. A method is a set of criteria for analysis and creation.
The ERIL Method does not simply say “use this mix” or “always do two steps.” Instead, it says: observe the base, read the structure, assess the porosity, interpret the white hair, define the desired reflection, and build accordingly.
This approach makes plant-based coloring much more precise and much more realistic.
The fundamental principle of the ERIL Method
The central principle of the ERIL Method is simple: white hair is not properly covered by starting with generic rules, but by starting with a correct analysis of the hair.
Many people are used to thinking this way: the more white hair there is, the more complicated the process needs to be. In reality, the percentage of white hair alone is not enough to determine either the type of mixture or the number of steps required.
Two people with the same amount of white hair may need completely different strategies. This happens because white hair does not exist in isolation: it coexists with a base, a certain structure, a specific porosity, a cosmetic history, and a precise color goal.
Why the percentage of white hair is not the only thing that matters
One of the most common mistakes in plant-based coloring is believing that the starting point is only the amount of white hair present. In reality, that figure only has value if it is interpreted together with other parameters.
The same percentage of white hair can behave very differently depending on the hair type. White hair on fine, porous hair can quickly take up the pigment. White hair on thick, low-porosity, resistant hair can react much more difficultly, even if the percentage is numerically identical.
This is why the ERIL Method does not think only in terms of quantity, but of how the hair behaves.
The factors the ERIL Method truly assesses
The ERIL Method takes into account several elements that are read together, not separately. It is from this complete analysis that a well-constructed mixture emerges.
The starting base
The starting base is one of the most important elements in creating an effective plant-based coloring.
It is not the same to work on a light brown, medium brown, or dark blonde base, or on hair that has already been treated with dyeing herbs in the past. It is not the same to have a cool regrowth or a naturally warm base. It is not the same to apply a mixture to already layered lengths or to virgin hair.
In the ERIL Method, the base is not considered a minor detail, but a decisive part of predicting the final result.
The temperature of the desired color
Many people simply ask for a brown or dark color, but in plant-based coloring, this is not enough.
You must understand whether the desired result should be warm, neutral, or cool. This distinction is fundamental, especially on white hair, because white hair highlights reflections much more sharply than the rest of the hair.
If the mixture is not well-constructed, the risk is obtaining a brown that is too warm, an unwanted copper reflection, an excessive golden effect, or coverage that appears good but is poorly harmonized with the rest of the hair.
The hair structure
Hair structure also plays a fundamental role.
Fine hair absorbs pigment differently than normal or thick hair. Fine hair can take up pigment very quickly and intensify the reflection. Thick, resistant hair, on the other hand, can offer greater resistance, especially on white hair.
In the image above, we can see how the structure changes: in the top photo, the hair appears finer and rougher, therefore more porous; in the bottom photo, the hair appears smooth and thick. This is why the ERIL Method considers structure a central parameter.
Hair porosity
One of the most overlooked aspects in plant-based coloring is porosity. Yet it is precisely porosity that profoundly influences the way the hair accepts the pigment.
Porous hair tends to absorb more easily. Low-porosity, compact, and resistant hair, on the other hand, can hinder the color from taking hold and make covering white hair more difficult.
This point is extremely important in the ERIL Method, because it also explains why the double process is not at all the universal solution many imagine.
Why the ERIL Method often allows for just one step
The true strength of the ERIL Method lies in the ability to create a smarter mixture from the very first step.
In the traditional approach to dyeing herbs, the double process is often used as a mental shortcut: first a warm base is deposited, then the final color is applied. In some cases this can be useful, but turning it into a general rule easily leads to poorly personalized results and, in certain situations, even worse ones.
The ERIL Method follows a different logic. It does not start with the question “how many steps do I do?”, but with the question “what does this hair really need to achieve coverage, harmony, and color stability?”.
When the mixture is created correctly, taking into account the base, the desired temperature, the hair structure, porosity, and the behavior of plant pigments, effective white hair coverage can be achieved in just one step in most cases.
A more technical and personalized approach
This makes plant-based coloring simpler, more sensible, and often more stable. Not because less is done, but because it is done better.
The ERIL Method does not try to complicate the process, but to make it more suitable for real hair.
Why the double process should not be automatic
Saying that the ERIL Method often favors a single step does not mean saying that the double process is never needed.
Instead, it means something very different: the double process should only be used when it truly serves a precise technical function, not because “that’s how it’s done.”
In plant-based coloring, turning the double process into an automaticity is one of the most frequent mistakes. It seems like a safer choice, but in reality, it is not always. In some cases, it adds nothing useful. In others, it can even complicate the result.
When the double process can make things worse
This is a fundamental point, especially when working on low-porosity, compact, and resistant white hair.
On this type of hair, the double process often does not improve coverage. On the contrary, it can make it worse.
Why this happens on low-porosity hair
The reason is technical. When hair is low-porosity, it already has more difficulty accepting the pigment evenly. If a first step very rich in henna or otherwise strongly aimed at creating a warm base is performed, the pigment may deposit mainly on the surface, saturating the hair partially but not in a truly functional way.
In practice, a surface layer is created that does not always favor the subsequent step. On the contrary, on already resistant hair, this initial saturation can make the even take-up of indigo or the darker second mixture even more difficult.
What can happen next
The result is that the second step does not work better: it works worse.
The most stubborn white hairs may continue to take up little of the dark pigment, or retain it poorly. This means that the color may initially appear decent but prove unstable after just a few washes. Reflections that are too warm may resurface, obvious differences may appear between hairs that took the color better and those that reacted worse, or uneven and less clean coverage may be created.
In other words, on low-porosity hair, the double process is not always a reinforcement. Instead, it can become an accumulation that is of little use, layering without solving the real problem.
The true goal of the ERIL Method
The heart of the ERIL Method is all right here: do not necessarily do more, but do it better.
In plant-based coloring, the most rigid procedure does not win. The one most suited to real hair wins.
This is why the ERIL Method does not consider the number of steps as a dogma, but as a consequence of reading the hair. If a double process is needed, it is assessed. If it is not needed, there is no sense in unnecessarily complicating the process.
Who the ERIL Method is designed for
The ERIL Method is designed for those who want to cover white hair with dyeing herbs in a more conscious and less random way.
It is useful for those who want a more harmonious result between regrowth and lengths.
It is useful for those who do not want to end up with reflections that are too warm or unstable coverage.
It is useful for those who have already tried dyeing herbs without achieving the desired result.
And it is particularly useful for those who want to avoid unnecessarily complicated procedures, understanding when a double process is truly needed and when it risks only making the result worse.
Have you always done the double process but want to understand if it is really necessary?
Every white hair can react differently. If you want to assess your base, the type of white hair, the result of previous applications, and the result you want to achieve, you can request a personalized consultation on WhatsApp.
This way, we can understand together if the double process is truly useful in your case or if a mixture designed to cover white hair in a single step might be more suitable.
Conclusion
The ERIL Method consists of a system of analysis and formulation that allows for addressing white hair coverage with dyeing herbs in a more technical, more personalized, and often simpler way.
It does not start with automatic rules, but with the reality of the hair. It considers the starting base, structure, porosity, desired temperature, and the behavior of plant pigments. This is why, in most cases, it allows for good coverage in just one step, reserving the double process only for situations where it truly makes sense.
And above all, it clarifies a fundamental point: on low-porosity, compact, and resistant hair, the double process is not always an advantage. Often, it can even make things worse, because it layers in a way that is of little use and hinders the even take-up of the subsequent pigment.
FAQ on the ERIL Method
Is the ERIL Method only for covering white hair?
No. The ERIL Method was created above all to address white hair coverage with dyeing herbs in a more technical way, but its basic principle is broader: to read the real hair and create a sensible mixture based on the starting situation and the desired result.
Does the ERIL Method always involve just one step?
No. The ERIL Method does not impose a single step as an absolute rule. In most cases, it aims to create an effective mixture from the very first step, but when the double process is truly needed, it is assessed technically, not automatically.
Why can the double process make the result worse?
On low-porosity, compact, and resistant hair, the first step can create a superficial saturation that is of little use, which does not favor the even take-up of the subsequent pigment. In these cases, the second step can be less effective, lead to unstable coverage, and cause unwanted warm reflections to resurface.
Does the ERIL Method take hair porosity into account?
Yes. Porosity is one of the central factors of the ERIL Method, because it influences the way the hair accepts or rejects plant pigment. Ignoring it means risking an unsuitable mixture and a less stable result.
How does the ERIL Method differ from a standard recipe?
A standard recipe offers identical formulas for everyone. The ERIL Method, instead, starts with the analysis of the starting base, hair structure, porosity, percentage of white hair, and desired reflection, to create a truly personalized mixture.
Is the ERIL Method also suitable for those who have already had bad experiences with henna?
Yes. Precisely those who have obtained uneven, too warm, poorly covering, or unstable results can benefit from a more technical and personalized approach like the ERIL Method.
