Start with clean skin: Wash/cleanse your face (or body area) to remove dirt/oil before applying sunscreen. Zeelab Pharmacy+1
If you use moisturizer/serum, apply that first — then wait a few minutes before sunscreen so moisturizer absorbs properly. The AARN Group+1
Apply sunscreen about 15–30 minutes before sun exposure — this gives the chemical filters time to bind/absorb and start working. desifine.com+2Jagran+2
Use sufficient quantity: For face and neck, ensure enough coverage (often ~¼ teaspoon to ½ tsp, depending on product). Jagran+2Dawaa Dost+2
Cover all exposed skin areas: Face, neck, ears, arms/hands, back of neck — and any skin that will be exposed to sun. NDTV India+2Jagran+2
Apply evenly and gently, ideally by spreading or patting rather than harsh rubbing — to form a uniform protective film. Dawaa Dost+2NDTV India+2
Reapply regularly: Typically every 2–3 hours, or immediately after heavy sweating, swimming, or towel-drying — especially if you remain outdoors.