Why Is Sunscreen Important?
Sunscreen reduces the risk of skin cancer, delays signs of aging (wrinkles, hyperpigmentation) and prevents post-treatment discoloration. SPF use is mandatory for those who have undergone laser, chemical peel and pigmentation treatments. Sunscreen selection and proper application are summarized in this guide. You may also refer to our skincare routine and skin pigmentation articles.
SPF 30 or SPF 50?
SPF 30 is adequate for daily use; SPF 50 is preferred for those who spend extended periods in the sun or have pigmentation sensitivity. UVA protection (PA+++ or broad spectrum) is essential. Even if you do not go outside, UV rays reflect through windows and on cloudy days, so sunscreen should be applied every day.
Mineral vs Chemical Sunscreen
Mineral (physical): Zinc oxide, titanium dioxide; safe for sensitive skin and during pregnancy. Chemical: Avobenzone, octinoxate, etc.; thinner consistency, less white cast. Selection is based on your skin type and sensitivities. Oil-free or gel formulations are preferred for oily skin.
How Much and How Often?
For the face, the two-finger rule (2 mg/cm²) applies; insufficient amounts reduce protection. Reapply every 2–3 hours and after sweating or swimming. In our skincare routine guide, sunscreen is the final step in the morning routine.
Conclusion
When used regularly and in adequate amounts, sunscreen preserves skin health and treatment results. SPF use after pigmentation treatment is critical to prevent recurrence of dark spots.
SPF 30 is sufficient for daily use; SPF 50 is preferred for pigmentation sensitivity and extended sun exposure. The two-finger rule (adequate amount for the face) and reapplication every 2–3 hours ensure effective protection. Mineral and chemical sunscreen options should be evaluated based on your skin type.
This article is for informational purposes only. Please consult a qualified physician before making any treatment decisions.