Which SPF is suitable for prolonged sun exposure?

Question

Hello doctor,

I am a 30-year-old male. My skin is exposed to the sun for extended periods every day. I would like to learn about sunscreen. With the multitude of sunscreen options available, how can I choose the most suitable sunscreen for my skin type and specific needs? Are there specific ingredients and SPF (sun protection factor) levels that I should prioritize? What is the recommended amount of sunscreen to apply, and how often should I reapply it? How does the SPF work, and what SPF level is considered adequate for everyday activities and prolonged sun exposure?

Please advise.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I understand your concern.

Sun protection factor measures how effectively sunscreen shields your skin from UVB (ultraviolet B) rays, the primary cause of sunburn and a contributor to skin cancer. An SPF 30 sunscreen enables you to remain in the sun 30 times longer without burning than if you were without any sunscreen. For everyday activities, an SPF of 30 is generally deemed sufficient. For prolonged sun exposure, particularly between 10 a.m. and 4 p.m., or for water or sweat-intensive activities, a higher SPF is recommended. Some guidelines include:

Ensure the sunscreen provides broad-spectrum protection, safeguarding against both UVA and UVB rays.
Opt for mineral sunscreens as they are less likely to provoke irritation.
Select non-comedogenic, oil-free formulations for oily skin and sunscreens with added moisturizers for dry skin.
Reapply every two hours, or more frequently if swimming or sweating.
Seek lightweight, non-greasy formulas that are easy to apply daily.
Opt for water-resistant formulas for swimming, sweating, or outdoor sports.

I hope this guidance helps you. Please do not hesitate to reach out if you need further assistance.

Thank you for using icliniq, and have a nice day.