• Sungyeon Ahn, Seunghun Kim, Haekwang Lee, Seongjoon Moon, and Ihseop Chang.
• Skin Research Institute, R&D Center, Amorepacific Corporation, Yongin, 449-729, Korea. syahn@amorepacific.com
• Skin Res Technol. 2007 Aug 1; 13 (3): 280-4.

Background/PurposeAs aging occurs, our skin gets more wrinkles, becomes drier and loses its elasticity. Validating the evaluation of skin elasticity is especially important, because it is not as visible as other signs of aging such as wrinkles. So it is needed that the method for measuring skin elasticity is able to reflect perception about the change of the skin state.MethodsHere, the correlation between age and the parameters given by a Cutometer is identified and the main parameters that reflect the decreases in skin elasticity in terms of ages are presented. Also, Moire's system, an evaluation method to quantify the sensory value of viewing, is developed. A five-grade standard of Moire topographic photo scale on the face is used to evaluate the state of skin elasticity and lifting 20- to 61-year-old women. Based on this photo standard, scoring is performed using a five-grade system by three specialists to obtain the consensus score. The score is compared with the result of a Cutometer.ResultsSignificant negative correlations between age and results of a Cutometer (r=-0.687-0.725), Moire's topography scores (r=-938), were found. Some Cutometer parameters and the decreases in skin elasticity in terms of ages were highly correlated (r=-0.687-0.725). The results from Moire system and flexibility as sensory evaluation also had a very high correlation with age (r=-0.765-0.932). Finally, we have shown the significance of the correlation between the result of a Cutometer and the score of Moire topography (r=0.711).ConclusionsIt is considered that Cutometer parameters R7 and R2 are used as main parameters to assess skin elasticity and aging. And our studies using Moire topography on the face have confirmed that instrumental measurements reflect the decrease in skin elasticity, which is perceived visually.

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