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Uploaded byHimanshiModi2
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Corneometer

The Corneometer is an instrument that measures skin hydration levels through capacitance measurement. It determines the hydration level of the stratum corneum, the outermost layer of skin, by detecting changes in dielectric properties as hydration increases. Measurements are quick, reproducible, and minimally influenced by substances on the skin. The small probe can be used on all body sites and provides accurate readings of the stratum corneum's top 10-20 micrometers. The Corneometer is widely used in cosmetic product testing and dermatological research to evaluate claims of hydration and moisturization.

Healthcare◦
PRINCIPLES OF CORNEOMETer
Corneometer The World's Most Popular Skin Hydration Measurement Instrument. For more than 30 years the Corneometer® has provided the worldwide most used method to reproducibly and accurately determine thehydration level of the skin surface (stratum corneum). This is documented by the numerous scientific literature in which the terms "corneometry" and skin hydration measurements are inseparable.
MEASUREMENT PRINCIPLE The measurement is based on capacitance measurement of a dielectric medium, here the stratum corneum, the uppermost layer of the skin. With increasing hydration, its di-electric properties change. The measurement is based on the fact that water has a higher dielectric constant (81) than most other substances (mainly < 7).
Advantages of the Corneometer • The probe allows very quick measurement (1 s) important to avoid occlusion. • Continuous measurements over a longer period can optionally be performed. • Substances on the skin (e.g. salts or residues of topical applied products) have only minimal influence due to capacitance measurement. • The measurement depth is very small(10-20 μm of the stratum corneum) to exclude the influence of deeper skin layers (e.g. from the blood vessels). • The probe is small and lightweight for easy handling and measurement on all body sites (e.g. lips etc.). • The spring in the probe head ensures constant pressure on the skin enabling exact, reproducible measurements. • The accuracy of the Corneometer® probe and the penetration depth of the scatter field can be checked easily anytime. • The probe head can quickly be cleanedafter each measurement.
Fields of Application • The hydration measurement is the basic measurement for all bio-medical and cosmetic applications. • Ideal instrument for formulation, claim support and efficacy & safety testing of all cosmetics & skin care products(personal care, irritation research, soaps and cleansers, occlusive product development), raw materials, pharmaceuticals, household products, detergents, food and food supplements and many more • Typical claims (examples) substantiated with the Corneometer®: hydrating/moisturizing, against dry skin, for sensitive skin, protecting, restoring/repairing, supports healing, soothing, normalizing, vitalising, and many more. • Used as standard in dermatological basis research in humans and animals. • Occupational health assesses this parameter to underline the importance of skin protection measures.
TECHNICAL DATA • Probe only: • Dimensions: 11 cm, Cable length: approx. 1.3 m, Measuring surface: 49 mm², Weight: 41 g • Measurement principle: capacitance, Units:arbitrary Corneometer® units, Measurement frequency: 0.9-1.2 MHz, Pressure: approx. 1.0 N ± 10 %, measurement uncertainty: ± 3% • For the technical data of the wireless probe, please see Basic Probe Systems. • Technical changes may be made without prior notice.
BY – HIMANSHI MODI 8-SEM THANKYOU