- Epidermis layer Is the outermost layer, it will look thinner If a wound occurs, the repair will be slower. More dry skin Because the sebaceous glands produce a decrease The skin of the elderly. therefore lacks fat to coat the skin, resulting in increased water loss from the skin.
- The dermis is a key component of collagen and elastin. The main functions are To make the skin elastic and help in the adhesion of the blood vessels. Therefore, when these substances are reduced, wrinkles will be found. Sagging skin And easy bruising In particular, areas that are always exposed to sunlight, such as the outer arms or the back of the hand. This is because the reduction of collagen will increase if the skin is always exposed to sunlight.
- The fat layer will also reduce its thickness. Especially around the face, cheekbones, which will change the face shape from the round face in childhood.
These changes vary by genetics and ethnicity. By Thai people who are Asian They live in areas that are not very cold and with high humidity, so the problem of dry skin is less severe than in cold and low humidity areas. But Thai people live in areas with strong sunlight. In which sunlight consists of 3 types of light:
- Bright light
- Warm infrared light
- Ultraviolet light Which is invisible to the naked eye and accounts for only 5% of sunlight, but is high in energy and plays a key role in increasing skin aging.
Thai skin has pigment cells thus producing melanin that is highly effective in absorbing All types of energy and sunlight. Therefore, collagen destruction is slower and less skin cancer is found than blue-eyed whites. But the downside is that dark skin or freckles are faster than white people.