In this study we investigated the correlation between the basal skin hydration\ndata, elasticity and surface roughness and the age of volunteers. Then, we analyzed the\nvariations obtained at the end of the treatments with anti-age cosmetic products for the\nface. The aim was to investigate the susceptibility to improvement of volunteers from\ndifferent age groups. Data were collected in our testing laboratory based in Milan over a\n6-year long activity. We only considered measurements performed on the face of a female\npopulation aged between 18 and 70 years of age. Values were subdivided in age groups for\neach considered parameter and were statistically compared. As expected, skin roughness\nincreased and R2 elasticity parameter decreased with ageing, while hydration values\nresulted to be higher in older women. Apparently, this unaccountable result is probably due\nto the fact that elderly women living in urban areas tend to take appropriate care of their\nskin, thus improving skin hydration effectively. Interestingly, as for skin hydration, the analysis\nshowed that women aged 61ââ?¬â??70 were the most susceptible to improvement induced by\nseveral types of cosmetic treatments. However, when considering the skin roughness\nvalues, women over 50 years old seemed to react better to cosmetic treatment. As for skin\nelasticity, the highest improvement values were found with women between 31 and 50 years\nof age
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