ABSTRACT
Introduction 231 Skin Aging and Biomechanical Properties5.7 231 Skin Biomechanical Property Assessment by Noninvasive Methods 232
Biomechanical Properties and Skin Intrinsic Aging 232 Biomechanical Properties and Photoaging 233
Biomechanical Properties and Antiaging Products 233 AHAs 233 Retinoids 234 Fish Polysaccharides 235 Metalloproteinase Inhibitors 236 Ascorbic Acid 237
References 237
Antiaging products are used to ameliorate various signs generally attributed to senescence; these signs develop from two different events,l-6 characterized by specific peculiarities known as chronoaging, or intrinsic aging, and photoaging, or extrinsic aging.5 Young people, who are often very concerned about aging, seek preventive approaches to reverse or slow down its manifestations, especially in view of the likelihood of a prolonged lifetime and an intensification of social relations. These preventive approaches are available mainly for the extrinsic aging process, which in fact seems to be responsible for 80% of facial aging. I,2
This chapter focuses on the relationship between antiaging treatment and skin biomechanical properties, since the major changes induced by aging (i.e.. wrinkles) are localized at the dermal level and can be assessed and monitored via biomechanical parameters.
