Efficacy testing: sebum regulating, mattifying effect

Sebum production

Sebumis produced by sebaceous glands, which are distributed all over the skin except on the palms and soles of the feet. Sebum is secreted onto the skin and hair surface, where it plays a crucial role as a protectant by creating a thin film on the surface of stratum corneum and maintaining overall moisture balance. Sebum is a complex mix of lipids and consists of triglycerides, wax esters, cholesterol esters, squalene as well as free cholesterol and fatty acids.

Regulating sebum production is essential for maintaining balanced and healthy skin. Both excessive sebum production (seborrhea) and insufficient sebum production can lead to skin issues.

Seborrhea is usually associated with oily skin type and linked to genetic factors but may also happen in subjects with non-greasy skin in specific stages of life such as adolescents, post-menopausal (due to hormonal changes), or it can also be triggered by stress or medication.

Sings of increased sebum production

Increased sebum production can lead to oily skin and may be associated with certain signs and symptoms.

Most common are oily skin (T-zone), enlarged pores, acne breakouts, thicker and rougher skin texture, shiny skin, and red, inflamed skin due to acne breakouts…

Claims related to sebum production

Sebum regulating

Mattifying effect

Cosmetics testing
Cosmetics testingCosmetics testing

Measurement principles and instruments

To prove sebum production related claims we measure the following parameters using the following instruments:

Evaluation of sebum

  • Sebumeter (Courage + Khazaka Electronic)

  • Sebufix F 16 - Visioscan VC 20plus (Courage + Khazaka Electronic)

See our results

Sebufix F 16 - Visioscan VC 20plus

Cosmetics testing

Example of sebum production - low oil

Cosmetics testing

Example of sebum production - oily skin

Efficacy testing protocol is prepared for each product individually with close cooperation with the sponsor. Based on the claims, usage regime and efficacy expectations, we prepare a protocol that is suitable for the type of product and can confirm product efficacy. The studies can be performed over a different time period (from a few days to several weeks or months) depending on the claim and type of measurement.

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