
Hi,
First of all, thank you for your interest in this hair loss series.
If you’re here, it’s probably because you’re going through a period of hair loss or you have questions about your scalp health.
I want to start by telling you one thing: I understand you.
Hair loss can be very stressful, and it’s not always clear where to begin or which products to choose.
Here is the serum I used :
VIDEO DEMONSTRATION
You can see my application method here :
Video: How to properly apply the serum
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This brush is ideal for:
- stimulating scalp circulation
- helping distribute serums more evenly
- supporting the scalp massage techniques recommended in this protocol
Hair Loss Protocol
The method I personally used
The first thing to understand about hair loss is that the scalp needs to be prepared before starting an anti-hair loss treatment.
If the scalp is unbalanced, anti-hair loss treatments tend to be much less effective.
Before beginning a treatment program, it is therefore very important to make sure the scalp is healthy and stable.
Step 1
Evaluate the condition of your scalp
Before starting any anti-hair loss treatment, ask yourself a simple question:
Is my scalp healthy?
Certain signs indicate that the scalp needs to be rebalanced first:
- itching
- dandruff
- unusual sensitivity
- very oily scalp
- general discomfort
If you notice one or more of these symptoms, the first step should be to rebalance the scalp before starting a hair-loss treatment.
Step 2
Rebalance the scalp
Recommended products :
- Kérastase Potentialiste Serum
- Kérastase Bain Divalent Shampoo
Routine :
Applying Potentialiste Serum
The serum can be applied :
- in the morning or in the evening
- always on a dry scalp
If you have just washed your hair :
It is important to dry the scalp before applying the serum to ensure proper absorption.
After applying :
- allow the product to absorb for 3–4 minutes
Then :
- gently brush the scalp to stimulate circulation.
Once per week :
Add the Kerastase Energizing Scrub.
This treatment helps to:
- remove impurities
- purify the scalp
- improve the effectiveness of treatments.
Shampoo
If the scalp is oily or unbalanced, I recommend :
- Kérastase Bain Divalent for first shampoo
Second shampoo :
- a shampoo adapted to your hair type.
Duration of this phase
Continue this step until the scalp improves:
- less itching
- fewer flakes
- a more comfortable scalp
In most cases, this takes about 2 to 3 weeks.
However, even once symptoms disappear, I recommend continuing the routine for the same amount of time again.
Example:
- improvement after 2 weeks → continue for another 2 weeks
- improvement after 3 weeks → continue for another 3 weeks
This allows the scalp to become fully stabilized.
Step 3
Start with the Anti-Breakage Serum
Once the scalp is balanced, you can begin the treatment:
- Kérastase Genesis Anti-Breakage Serum
Application
The treatment should be applied:
- in the morning
- on a dry scalp
Why in the morning?
Because the formula contains caffeine, which helps stimulate micro-circulation in the scalp.
If you have just washed your hair :
make sure the scalp is dry before applying.
My application method (very important)
In my videos, I demonstrate an application method that I personally use and teach my clients.
Instead of applying the pipette directly onto the scalp, I recommend:
- placing the product on your fingertips
- applying the serum to the scalp with your fingers
- gently massaging from the hairline toward the crown of the head
Why?
Applying the pipette directly onto the scalp often:
- causes the product to run into the hair
- leads to unnecessary product waste
- distributes the product unevenly.
Using your fingers allows:
- the product to stay on the scalp
- more precise distribution
- stimulation of circulation at the same time.
This technique often leads to better results with the same amount of product.
Recommended shampoo during the treatment

During the anti-hair loss treatment, I recommend:
- Kérastase Bain Hydra-Fortifiant
or
- Kérastase Bain Nutri-Fortifiant
Duration of the treatment
One important point :
A bottle should last approximately 6 to 8 weeks.
If your bottle lasts much longer, it often means you are not applying enough product.
Pro tip :
A small tip I often share with my clients concerns the shelf life of cosmetic products once opened.
Hair and skincare products have a limited stability once opened.
You may already have an anti-hair loss treatment at home and be wondering whether it’s still effective.
My advice :
When you open a bottle, write the month and year of opening directly on the bottle with a Sharpie.
In most cases, active ingredients remain stable for about 12 months after opening.
After this period, the stability of the ingredients may decrease and the product may become less effective.
That’s why I generally do not recommend using products that have been open for more than one year.
What to expect during the treatment
If you’re experiencing significant hair loss, you may notice hair continuing to shed at the beginning.
This is normal.
Over time, you should notice:
- less hair in the shower
- less hair in your brush
- a gradual reduction in hair shedding
Results usually appear gradually week after week.
My personal experience
Personally, I used this treatment daily and still use it today.
In cases of significant hair loss, I usually recommend :
2 to 3 bottles (which represents about 4 to 6 months of treatment)
Long-term maintenance
Once hair loss has stabilized :
Here is the routine I personally follow.
During the week
On weekends
- 2 days of Potentialiste to maintain scalp balance
Seasonal maintenance :
At every seasonal change, or whenever you feel your scalp becoming unbalanced, I recommend doing 2 to 4 weeks of Potentialiste serum.
This helps:
- stabilize the scalp
- prevent imbalances
- maintain an environment favorable for hair regrowth
Washing frequency
Ideally:
- wash your hair every 2 to 3 days
and use the scrub about every two weeks.
Product guide and key ingredients
If you like understanding why each product is used in this protocol, here is a simple guide explaining the key ingredients and their role.
Each product plays a specific role in the routine: either rebalancing the scalp, stimulating follicle activity, or maintaining a healthy environment for hair growth.
Kérastase Potentialiste Serum
Role in the protocol :
- Rebalances the scalp before starting an anti-hair loss treatment.
- A healthy scalp is essential to maximize treatment effectiveness.
Key ingredients :
Bifidus fraction (probiotic) - Helps rebalance the scalp microbiome and reduce discomfort.
Vitamin C - An antioxidant that helps protect the scalp from external aggressors.
Benefits :
- helps soothe the scalp
- strengthens the scalp barrier
- supports a healthy environment for hair growth
Kérastase Energizing Scrub
Role in the protocol :
Exfoliates and purifies the scalp to remove buildup and improve treatment penetration.
Key ingredients :
Sea salt - Provides mechanical exfoliation to remove impurities and buildup.
Salicylic acid - Gently exfoliates and removes dead skin cells.
Benefits :
- purifies the scalp
- removes buildup
- improves treatment penetration
Kérastase Bain Divalent
Role in the protocol
Helps regulate scalps that tend to be oily or unbalanced.
Key ingredients :
Amino acids - Help nourish the hair fiber while respecting scalp balance.
Vitamin B6 - Helps regulate sebum production.
Benefits
- purifies the roots
- regulates excess oil
- keeps lengths hydrated
Kérastase Genesis Anti-Breakage Serum
Role in the protocol
Strengthens the hair at the root and supports an environment that promotes better hair anchoring.
Key ingredients
Aminexil - Helps prevent collagen hardening around the hair follicle, supporting stronger anchoring.
Caffeine - Stimulates scalp micro-circulation and supports follicle activity.
Ginger root - Helps protect the hair follicle from external aggressors.
Edelweiss native cells - Provide antioxidant protection to the scalp and hair fiber.
Additional note
The formula also contains complementary ingredients that help maintain a healthy scalp environment and support overall hair quality.
Benefits
- helps reduce hair loss related to hair weakening
- supports stronger anchoring at the root
- strengthens the hair fiber from the root
- improves overall hair resistance
Why this protocol works
When experiencing hair loss, the first instinct is often to search for a miracle product.
In reality, results usually come from a structured and consistent approach.
This protocol works because it targets three essential elements of hair health:
1. Scalp balance
An irritated, oily, or unbalanced scalp can disrupt the normal activity of the hair follicle.
The first step focuses on restoring a healthy scalp environment.
2. Follicle stimulation
Once the scalp is stabilized, the anti-hair loss treatment helps stimulate follicle activity and improve hair anchoring.
3. Consistency
Hair care treatments work when they are used consistently and with the proper application technique.
Consistency and correct application often make the biggest difference.
Products mentioned in this protocol
Find all the products used in this protocol here:
Optimize your routine by taking advantage of the Kérastase Genesis bundles that contain some products from the protocol:
Genesis anti-hair loss routine caused by breakage for fine to medium-thick hair :
$261.90 (value of $291.00)
Anti-hair loss routine caused by breakage for all hair types :
$261.90 (value of $291.00)
Genesis Trio To Strengthen Fine Hair
$179.20 (value of $224.00)











