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Clinical study of the progressive anti-hair loss range

CLINICAL STUDY

Progressive anti-hair loss range

Visible reduction in age-related hair loss

The Progressive Anti-Hair Loss range was developed to help reduce age- and heredity-related hair loss, which is responsible for progressive thinning of the hair fibre and sparse hair.

Thanks to formulas enriched with targeted active ingredients, it helps to strengthen the hair fibre, improve hair resilience and preserve hair density.

Clinically proven efficacy

Each product in the Progressive Anti-Hair Loss range has been the subject of a dedicated clinical study, conducted under dermatological supervision on volunteers experiencing progressive hair loss.

The products were applied for 3 months, in order to precisely measure the reduction in hair loss.

EVALUATION PROTOCOLS

The method

The evaluation is based on scientific techniques that enable objective measurement of hair loss and its progression.

Wash Test

This method enables precise quantification of the number of hairs lost during washing. The shed hairs are collected and counted, providing a reliable measure of the intensity of hair loss.

Procedure

  • Volunteers do not use shampoo for 48 hours.
  • Hair is washed over a basin fitted with a collection device to recover and count the shed hairs.

Phototrichogram

(scientific analysis of the hair cycle)

The phototrichogram enables precise analysis of the hair growth cycle.

Procedure

  1. A small area of the scalp is shaved.
  2. The hairs on the shaved area are dyed so that they are perfectly visible.
  3. A photograph is taken using a dermatological camera.
  4. A second photograph is taken 48 hours later.

The images are then analysed using specialist software.

Clinically proven
cosmetics

Silicone-free
and sulphate-free*

Made in France

Hair cycle analysis

The software measures several scientific parameters:

Hair density

Total number of hairs per cm².

Hair cycle phase

Each hair is classified according to its phase:

  • Anagen phase: growth phase
  • Telogen phase: shedding phase
Anagen / telogen ratio

The higher the number of hairs in the anagen phase and the lower the number of hairs in the telogen phase, the more hair loss is reduced.

STUDY RESULTS

Progressive anti-hair loss clinical study

*Progressive Anti-Hair Loss Shampoo:
clinical study, 57 volunteers with progressive hair loss, overall averages, 3 times per week for 3 months.

Progressive Anti-Hair Loss Conditioner:
clinical study, 60 volunteers with progressive hair loss, overall averages, 3 times per week for 3 months.

Progressive Anti-Hair Loss Serum:
*clinical study, 63 people with progressive hair loss, overall averages, after 3 months of twice-daily application

Free from sulphated surfactants

View the supporting evidence (*)

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