India, Oct. 25 -- Whether it's a sunny day at the beach or a cloudy afternoon, your skin is always under attack from harmful UV rays. While most of us focus on moisturisers and serums, we often forget the one product that truly protects and preserves our skin, sunscreen.

It's not just for vacations or summers; it's a daily essential that keeps your skin healthy, youthful, and safe in the long run. (Also read: AIIMS-trained dermatologist shares simple 'vegetarian protein guide' for strong, healthy hair: Moong dal chilla to oats )

Dr Kiran Sethi, dermatologist, aesthetic and wellness physician based in New Delhi, shares in her October 22 Instagram post why sunscreen is a lifelong investment and what everyone should know before stepping ou...