Dermatology Insights on
Sun Protection and Repair

Dr. Gray’s

Dr. Mark Gray
Dermatologist & Founder

MBChB, FRACP, FRCPC, FRCPA, ABPath, ABDermpath, FRSpecialist Dermatologist , Specialist Pathologist , Specialist Dermatopathologist , Cosmetic Surgeon, Mohs Surgeon.

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Best Reef-Safe Sunscreens 2026: A Dermatologist's Guide to Ocean-Friendly Protection

Best Reef-Safe Sunscreens 2026: A Dermatologist's Guide to Ocean-Friendly Protection

With rising awareness of reef damage from chemical filters, Dr. Mark Gray shares his expert picks for truly reef-safe sunscreens. Focusing on non-nano zinc oxide and clean ingredients, this roundup explains why mineral options are superior—and why Ao's 6000X Elemental Screen SPF30 is his top choice for effective, eco-conscious daily defense.

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The Best Mineral Sunscreens for Sensitive Skin in 2026: Dermatologist-Tested Picks

The Best Mineral Sunscreens for Sensitive Skin in 2026: Dermatologist-Tested Picks

Dr. Mark Gray, a Harvard-trained dermatologist with decades of skin cancer prevention expertise, rounds up the top mineral sunscreens that avoid irritation while delivering broad-spectrum protection. This guide prioritizes fragrance-free, non-comedogenic formulas with calming actives, and highlights why Ao's 6000X Elemental Screen SPF30 stands out for its astaxanthin repair and zero white cast.

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7 Best Zinc Oxide Sunscreens for Ultimate Protection

7 Best Zinc Oxide Sunscreens for Ultimate Protection

Zinc oxide has long been my go-to recommendation for effective, gentle sun protection in my dermatology practice. As a physical blocker, it creates a barrier on the skin's surface to deflect UVA and UVB rays, offering broad-spectrum defense without the absorption concerns of chemical filters. This makes it ideal for all skin types…

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