With changes in lifestyle, the impact of indoor lighting on skin health is receiving increasing attention. Many people ask, “If I stay home all day, do I still need to apply sunscreen?” The answer is yes! Whether you are receiving beauty treatments or using various skincare products, indoor sun protection is absolutely essential.
Even when we are indoors, there are many sources of light that can affect skin health. Although UVA, UVB, and UVC rays from sunlight do not exist in rooms, there are other invisible threats—blue light (HEV, High Energy Visible Light). Nowadays, we are almost entirely dependent on electronic products, from computers and tablets to smartphones, and even indoor lighting emits blue light. These light sources pose potential risks to our skin because they can penetrate the skin, leading to damage to collagen and elastin, thereby accelerating skin aging.
The wavelength of blue light penetrates deeper than that of traditional UVA rays, further affecting the internal structure of the skin. Studies show that this type of light is not only related to eye health but can also harm our skin. For example, as women age, prolonged exposure to blue light often leads to hormonal pigmentation and uneven skin tone. These issues arise from the chronic effects of blue light, but since the damage is not immediately visible, it is often overlooked.
What’s more surprising is that while many people are cautious about sun protection outdoors, they often relax their vigilance and neglect this important protective step once they return indoors. In reality, bright light sources and electronic devices remain threats to our skin both day and night. Therefore, using sunscreen appropriately should be a good habit that everyone develops.
When choosing sunscreen products, it is recommended to consider physical sunscreens, which are generally based on ingredients like titanium dioxide and zinc oxide, effectively blocking blue light and ultraviolet rays. Additionally, these products are usually lightweight and less likely to cause skin sensitivity or acne, making them suitable for various skin types. They are an excellent choice, especially for women prone to breakouts during their menstrual periods.
When applying sunscreen, whether physical or chemical, remember to evenly apply it to your face and any exposed skin, and reapply it regularly. Some may choose to apply sunscreen after makeup, but there are now many convenient sunscreen sprays and powder products available on the market that can preserve makeup while providing protection.
Finally, maintaining skin health requires a good sunscreen habit. Whether you are enjoying leisure time indoors or busy with work, always remember to protect your skin from blue light threats for the best defense!