2022 Volume 56 Issue 4 Pages 355-362
Based on several studies, cosmetics that focus on the care of the area from the neck to the clavicle have been released. Most of them focus on wrinkles in the neck area due to aging and ultraviolet rays, and various research findings have been obtained. However, evaluation limited to the neck area has not revealed a definitive cause directly linked to wrinkle formation. In addition, there is little knowledge on the relationship between wrinkles on the neck and changes in the physiological functions of the skin in the neck and surrounding areas. In this study, we examined the relationship between the degree of wrinkles on the neck and skin measurements in the surrounding area in 32 healthy women aged 25-54 yrs. The results showed that the water content of the clavicle stratum corneum did not correlate with age. Furthermore, the water content of the clavicle stratum corneum in the group with less noticeable neck wrinkles was significantly higher than that with more noticeable wrinkles, and it was found to be maintained at a relatively constant level. These findings suggest that neck wrinkles are closely related to the water retention capacity in the clavicle skin, and that age is not the primary factor in this relationship. Understanding the changes in the physiological parameters of the clavicle skin is important for the care of wrinkles in the neck region.