The following list contains only the main test methods. For more detailed information about these and other tests or for the development of an individual test design please contact us.
Safety tests in vivo
Simple 48-hour patch test

Patch test after tape stripping
Duhring-Chamber-test (with TEWL and skin redness)
Repeated open application test (ROAT)
Efficycy tests in vivo
Hydration rate (moisturisation) Corneometer MPA
Transepidermal Water Loss Tewameter MPA
Irritation prevention induced by sodium lauryl sulphate Tewameter MPA
Chromameter CR 300 / 400
Study of biomechanical properties (elasticity/firmness) Cutometer MPA 580
Roughness with silicon impressions PRIMOS (Phaseshift Rapid In-vivo Measurement of Skin) with real-time matching of skin areas - See here for a detailed description.
Roughness / wrinkle depth
(direct measurement without skin prints) 		PRIMOS (Phaseshift Rapid In-vivo Measurement of Skin) with real-time matching of skin areas - See here for a detailed description.
Skin surface lipids Sebumeter SM 815 / MPA
Determination of squalene
Cutaneous pH measurement Skin pH- Meter pH 900 with surface electrode
Skin redness and pigmentation Mexameter MX18
Chromameter CR 400
Determination of sun protection factor and water resistance ISO 24444:2019, AS/NZS 2604:2021, SANS 1557:2019 Edition 4, FDA OTC Monograph M020 (Solar Light Multiport UV Solar SimulatorModel 601 v2.5)
Efficacy of anti-dandruff products  Scoring System
User trials Subjective evaluations
Questionnaires

 Efficacy tests in-vitro
UVA protection ISO24443:2021