The stretch marks – technical assessment is a targeted expert evaluation designed to assess visible improvements in skin appearance in areas presenting stretch marks.

This test combines professional visual grading with tactile analysis, supported by standardized photographic documentation, providing objective evidence for claims such as “improves the appearance of stretch marks,” “enhances skin smoothness,” and “refines skin texture.”

Purpose of the Test

The goal of this test is to determine whether a cosmetic product improves the visible appearance of stretch marks by enhancing skin smoothness, texture, and overall visual uniformity.

It is particularly relevant for body care products intended to improve skin appearance and texture, especially in areas prone to visible skin irregularities.

Methodology

The study is performed as a clinical expert assessment, combining visual evaluation, tactile analysis, and standardized photography.

• Number of volunteers: 10
• Measurement points: Baseline (T0) and post-application (T1) after defined use period
• Duration: Defined according to study design
• Evaluation methods: Visual grading, tactile assessment, and photographic documentation
• Number of samples required: 11 finished product samples

Test Procedure

1. Volunteer selection:
   Ten participants presenting visible stretch marks are selected.
2. Baseline assessment (T0):
   Initial evaluation is performed, including visual scoring, tactile analysis, and standardized photographs.
3. Product application:
   The test product is applied according to its intended use over the study period.
4. Follow-up assessment (T1):
   After the application period, evaluations are repeated under identical conditions.
5. Data comparison:
   Baseline and post-application results are compared to determine the level of visible improvement.

Parameters Evaluated

• Appearance of stretch marks — structured visual grading
• Skin texture and smoothness — assessed visually and by touch
• Skin surface uniformity — evaluation of visible irregularities
• Before/after comparison — supported by standardized photography
• Overall improvement score
• Statistical relevance of observed changes

Sample Requirements

• Quantity: 11 finished product samples
• Condition: Unopened, stable, and suitable for topical use
• Product types: Body care products intended to improve skin appearance, smoothness, and texture

Results & Reporting

The laboratory report includes:

• Description of assessment methodology and evaluation criteria
• Structured scoring of visible improvement
• Standardized before-and-after photographic documentation
• Comparative analysis of baseline vs. post-application results
• Expert interpretation supporting product performance

Why This Test Matters

The Stretch Marks – Technical Assessment provides credible, expert-based evidence of a product’s ability to improve the visible appearance of skin irregularities.

It supports claims such as:

• “Improves the appearance of stretch marks”
• “Smooths and refines skin texture”
• “Enhances skin uniformity”

This test is essential for product substantiation, marketing validation, and visual proof of efficacy, delivering clear and reliable results through expert evaluation and photographic documentation.

How the Process Works

1. Order your lab test
   Select the appropriate package and complete your purchase on our website.
2. Receive secure access
   After purchase, you’ll receive login details to our secure portal.
3. Complete the intake form
   Provide your product details and upload available documentation.
4. Send us your samples
   We’ll guide you on exactly what to send to our lab. The sample amount and number depends on several factors. The exact number of samples will be communicated via the portal.
5. Lab testing
   We start the lab test.
6. Receive your results
   Our safety assessor will prepare the lab test results and provides this via the portal.