Efficacy testing

Efficacy testing: anti-ageing

Study design

General skin testing protocol

Number of subjects

20 (determined by client)

Place of application

Face / Arm / Thigh (determined by client)

Testing time

4 weeks (determined by client)

Sample requirement

Equal to the number of subjects

Measurement points

  • T0 – before application (cleaned skin surface, adaptation time 20 min)
  • Tx – after x weeks (determined by client)

Procedure

  • Washout phase at least 2 h before the measurement
  • 3–5 measurements on the testing site (“BEFORE testing”)
  • Product used by participants at home during the testing period
  • 3–5 measurements on the testing site (“AFTER testing”)

Equipment

  • Demaflex / Dermalab (Cortex Technologies)
  • Soft FX (Callegari, 1930)
  • EVE M Panoramic AI skin analyzer
What to look for

Signs of skin ageing.

Microcamera images of fine lines and wrinkles

General signs of skin ageing include fine lines and wrinkles, skin sagging due to loss of volume and loss of elasticity accompanied with deep wrinkles.

Intrinsic and extrinsic skin ageing have different phenotypes. Intrinsically aged skin is characterized by smooth, unblemished, dry and paler skin with fine wrinkles and loss of elasticity. Skin affected by extrinsic factors and photoaged skin is determined by deep wrinkles, uneven pigmentation, rough texture and sever loss of elasticity and firmness.

Claims related to skin ageing

  • Anti-ageing
  • Rejuvenating
  • Revitalizing
How we measure

Measurement principles and instruments.

Soft FX device by Callegari 1930

To prove anti-aging claims, we measure the following parameters using the following instruments:

Skin elasticity measurement

Evaluation of skin elasticity/firmness

  • Demaflex / Dermalab (Cortex Technologies)
  • Soft FX (Callegari, 1930)
Skin hydration measurement

Evaluation of skin hydration

  • Dermalab (Cortex Technologies)
  • Soft FX (Callegari, 1930)
Wrinkle evaluation with the EVE M skin analyzer

Evaluation of wrinkles

  • EVE M Panoramic AI skin analyzer
Proven efficacy

See our results.

EVE M Panoramic AI skin analyzer

Before product application

Before product application

After 4 week treatment

After 4 week treatment

The science

Skin ageing.

Skin analysis with the EVE M skin analyzer

Skin ageing is a natural process caused by a combination of external(extrinsic) and internal (intrinsic) factors. Both types of factors can lead to a loss of structural integrity and reduced skin function. Understanding the mechanisms of cellular ageing and the effects of different factors on the skin can help identify ways to influence premature skin ageing and reduce visible signs of ageing.

Extrinsic skin ageing results from environmental and lifestyle factors, such as exposure to sunlight, pollution, smoking, diet, and skincare habits. The strong effects of ultraviolet (UV) radiation on the skin are commonly referred to as photoageing. Unlike intrinsic ageing, extrinsic skin ageing can be prevented, alleviated, or reduced to a certain degree.

Intrinsic, or chronological, skin ageing is a biologically determined process influenced by genetics, time, and internal physiological changes. It is an inevitable process that affects every individual, although the rate and visible effects vary from person to person. Hormonal changes, such as reduced estrogen levels, are another important internal factor that can significantly affect skin ageing.

A major mechanism involved in extrinsic skin ageing is oxidative stress. The skin's antioxidant defence capacity may decrease with age, making it more vulnerable to damage. Oxidative stress is strongly associated with exposure to UV radiation, which generates reactive oxygen species (ROS), including free radicals. These reactive molecules contribute to premature ageing by damaging DNA and promoting the breakdown of extracellular matrix components, such as collagen, elastin, and hyaluronic acid. Prolonged UV exposure can also promote inflammatory processes and contribute to local immunosuppression in the skin.

Tailored to your product

A protocol built for your claims.

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.

Get started

Ready to substantiate your anti-ageing claims?

Speak with our testing experts about an efficacy study tailored to your product's claims, usage regime and timeline.

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