Sun Damage is real.
Sun exposure is a major cause of the aging process. Melasma, freckles, actinic keratoses and texture changes are all signs of photoaging. Wrinkles, fine lines and pigmentation are inevitable as we age. However, its accelerated due to photo aging.
UVB rays are shorter than UVA rays, and cause superficial damage like sunburn and inflammation. The UVA rays, with their longer wavelength, penetrate deep into the dermis, where they damage the collagen fibers.
Wearing sunscreen every day can do more than prevent skin cancer — it can prevent signs of photoaging as well. Certain ingredients such as vitamin C and E and green tea are antioxidants that stabilize the skin and help brighten dark spots.
Types of Sunscreens
- Chemical suncsreens: They have Organic filters like cinnamates, salicylates and benzophenone, that absorb UV radiation and convert it to a small amount of heat.
- Mineral sunscreens contain zinc oxide and titanium dioxide. These sit on top of the skin’s surface, acting as a physical blocker by deflecting and scattering UV rays away from the skin like tiny mirrors. This is great for sensitive skin types and babies as it is less irritating and the most effective.
Three Rules of sunscreen application:
- Apply liberally - like brushing a thick coat of paint
- Apply frequently - a sunscreen needs to be applied every two hours. The UV blockers can only absorb so much and become saturated after sometime, hence a fresh coat is needed. Frequency of application matters more than SPF of your product.
- Apply in shade too - Unless its night, there is UV light.
Sunscreen is an important part of a complete sun protection strategy. But sunscreen alone isn’t enough. A combination of shade, clothing, sunscreen and common sense is your best bet.