The mattifying effect – glossymeter test is an instrumental evaluation designed to measure the level of skin gloss by quantifying the amount of light reflected from the skin surface.

This test provides objective evidence for claims such as “reduces shine,” “mattifying effect,” and “controls skin gloss.”

Purpose of the Test

The goal of this test is to determine whether a cosmetic product reduces excess skin shine and improves the appearance of a matte finish over time.

It is particularly relevant for products targeting oily or combination skin, including formulations designed to control visible shine.

Methodology

The study is performed as an instrumental test using a glossymeter, which measures the intensity of light reflected from the skin surface.

• Number of volunteers: Defined according to study design
• Measurement points: Baseline (T0) and post-application (T1) after defined period of use
• Environmental conditions: Controlled temperature and humidity
• Number of samples required: 50 ml of finished product

Test Procedure

1. Volunteer selection:
   Participants with normal to oily or combination skin are selected.
2. Baseline measurement (T0):
   Skin gloss is measured prior to product application using the glossymeter.
3. Product application:
   The test product is applied according to its intended use over the study period.
4. Post-application measurement (T1):
   After the defined period, skin gloss is measured again under the same conditions.
5. Data comparison:
   Results are compared to baseline to determine the reduction in skin shine.

Parameters Evaluated

• Skin gloss level — quantitative measurement
• Light reflection from skin surface
• Percentage reduction compared to baseline
• Visible shine control over time
• Confirmation of mattifying effect

Sample Requirements

• Quantity: 50 ml of finished product
• Condition: Stable, ready-to-use formulation
• Product types: Skincare and cosmetic products designed to reduce shine and improve skin appearance

Results & Reporting

The laboratory report includes:

• Quantitative data on skin gloss levels
• Calculation of percentage reduction versus baseline
• Comparative analysis of pre- and post-application results
• Interpretation confirming mattifying performance

Why This Test Matters

The Mattifying Effect – Glossymeter test provides reliable, quantitative data demonstrating a product’s ability to reduce visible skin shine.

It supports claims such as:

• “Reduces excess shine”
• “Provides a mattifying effect”
• “Controls skin gloss”

This test is essential for product substantiation, performance validation, and consumer confidence, ensuring that formulations deliver a visibly matte and balanced skin appearance.

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.