A new method for skin aging evaluation of Chinese women

Radiofrequency and skin rejuvenation: a systematic review

Increasingly, there is an attempt to minimize expression lines through esthetic procedures, and radiofrequency (RF) is one of the therapeutic modalities. This article aims to systematically review the literature on the different types of RF treatment in clinical trials and in variables related to the aging process. This systematic review included 21 articles that treated 354 people with different physical characteristics. The most used RF was the fractional followed by the non-ablative RF. There was a large discrepancy in relation to the types and parameters. A parameter that did not show so much divergence was the temperature, which was between 38°C and 44°C. The main temporary adverse reactions reported by the authors were as follows: discomfort, pain, erythema, hyperpigmentation, crusting, swelling, edema, and purple and acneic appearance of the skin. Finally, our study concluded that non-ablative and ablative RF was reported to rejuvenate and improve the features of skin in all skin types.

Analysis of Multi-Part Phenotypic Changes in Skin to Characterize the Trajectory of Skin Aging in Chinese Women

Purpose

As the human body’s largest organ exposed to the external environment, the skin suffers from internal and external aging factors, leading to wrinkles, loss of elasticity, sagging, and rough appearance. However, little is known of the characteristics of skin aging of different body parts in Chinese women. Here, we study the signs of extrinsic skin aging in different body parts to identify the knowledge map of manifestations of aging in Chinese women.

Patients and Methods

Wrinkle and texture phenotypes and collagen samples from the face, neck, hands, and arms of 326 Chinese women were collected. The correlations between phenotypes and ages and the differences in phenotypes by age were evaluated.

Results

The wrinkle and texture phenotypes around the eyes and mouth and of the hands were strongly correlated with age. Ages 32 and 58 showed the largest number of differentially changed aging phenotypes. The number of aging phenotypes increased sharply between the ages of 24 and 30, suggesting that the skin was undergoing rapid aging. Eye aging was the most rapidly changing phenotype between 19 and 30 years old. Wrinkles at the corner of the eyes showed a significant difference in the older group, suggesting an early onset and long-term effects.

Conclusion

This is the first study to be performed on the characteristics of skin aging among Chinese women that takes account of multiple areas of the body. It was found that 24 years old was the time point at which the skin begins to age in Chinese women. This provides important clues for aging-related research and personalized skin care.