In adults, a healthy nail is hard, tough, transparent and has a smooth surface. Many products (creams, oils, masks, enamels) aim to promote nail growth and strengthen its hardness.

• Clinical scoring remains a standard for evaluating the appearance and health of the nail (brittle, soft, split, etc.),
• Image analysis on photographs in standardized light makes it possible to follow the speed of growth,
• Panelists can appreciate the penetration and the drying time
• Biometrological measurements of color [C-Cube; Spectrophotometer], hydration [MoistureMeter D], TOWL [Aquaflux], brightness [Glossymeter], thickness [DermaScan C; DubSkinScanner], hardness [TA-TX, Nail StrainStress Meter NM 100] are also available.

Read the complete article: ZOOM#17 -Testing trends nails evaluation – in vitro efficacy testing – Skinobs.web

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