A Study on the Difference in Aging Characteristics of Sensitive and Non‐Sensitive Skin

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Background According to Euromonitor and T Mall data statistics from 2017 to 2022, the Chinese market for sensitive skin (SS) skincare is growing by 20% every year, and anti‐aging concept cosmetics for sensitive skin are becoming popular. There are few studies on the difference in aging between sensitive and non‐sensitive skin. Objectives This study is to determine whether sensitive skin ages faster than non‐sensitive skin. Method Eighty subjects aged 25–50 years each from sensitive and non‐sensitive skin participated in this clinical trial. trans‐epidermal water loss (TEWL), CIE‐L* a*b* values, gloss, hydration, sebum content, dermis density, elasticity, wrinkles, smoothness, artificial intelligence (AI)‐estimated skin age, and pores were evaluated in subjects with sensitive and non‐sensitive skin. Results In the 25‐ to 29‐year‐old group, the pore score and nasolabial fold count of non‐sensitive skin were significantly lower than those of sensitive skin (p < 0.05), but the transparency was significantly higher than that of sensitive skin (p < 0.05). There was a significant difference between groups in the MAE value between AI skin age and chronological age, and the AI‐estimated skin age of sensitive skin is significantly older than that of non‐sensitive skin (p < 0.05). There were no significant differences between sensitive and non‐sensitive skin in other parameters (p > 0.05). In the 30‐ to 34‐year‐old group, the TEWL value and a* value of non‐sensitive skin are significantly lower than those of sensitive skin, but the L* value and glossiness are significantly higher than those of sensitive skin (p < 0.05). There is no statistical difference in other parameters between sensitive and non‐sensitive skin (p > 0.05). In the 35‐ to 50‐year‐old group, sensitive skin demonstrated better performance only in crow's feet compared to non‐sensitive skin, with no significant differences observed in other parameters between the groups. (p > 0.05). Conclusion The phenomenon of premature aging in sensitive skin is more obvious, but as age increases, the difference in aging is not obvious. Early anti‐aging care for sensitive skin is necessary.