First, it is important to know that there are basically 2 types of sunscreen: Chemical and Physical.
Chemical Sunscreens (e.g. avobenzone, helioplex, and other's with unpronounceable names) undergo a chemical reaction with the UV rays, absorbing them and then release the extra energy as heat. The sunscreen's chemical reaction is only for a limited amount of time, hence you will have to reapply after 2-3 hours to ensure you are still protected.
High-purity niacinamide in this oil-free sunscreen helps calm and protect sensitive skin types prone to acne, rosacea and discoloration. Very lightweight and silky, it may be worn with makeup or alone.
9.0% transparent zinc oxide
Antioxidants help absorb free radicals
Calms and protects acne-prone skin Leaves no residue
UVA/UVB sun protection
Fragrance-free, oil-free, paraben-free, sensitivity-free and noncomedogenic.
Elegant and silky on your skin, this fluffy moisturizing sunscreen may be used every day or after facial treatments. Developed specifically for moderate to dry skin, it is beneficial for all skin types needing a moisture boost and UV protection. EltaMD UV Facial Broad-Spectrum SPF 30+ can be worn alone or under makeup.
For many twenty-somethings (especially in the early years), skin care isn't a top priority. But this is the prime time for preventing skin damage - hello sunscreen! - and instilling a simple - yet - solid anti-aging routine that will pay off in the future. Keeping breakouts at bay, fading early sun damage and maintaining a youthful glow is easy with the right-combination of products.