Detailed answer

Fine lines and wrinkles can start to appear in the mid to late 20s, although this can vary depending on various factors such as genetics, lifestyle, and skincare regimen. The skin's natural aging process, along with external factors like sun exposure and smoking, can contribute to the development of these signs of aging. As we age, the production of collagen and elastin, which help keep the skin firm and smooth, gradually decreases. Additionally, repeated facial expressions, such as squinting or frowning, can lead to the formation of expression lines. Taking good care of your skin through proper cleansing, moisturizing, and sun protection can help delay the onset and minimize the appearance of fine lines and wrinkles.