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SPF Explained — Everything You Were Told About Sunscreen Is Wrong | The Ingredients Doctor
SPF is one of the most misunderstood concepts in skincare. In this masterclass, Dr Joan van Wyngaard explains the science behind photoprotection, UV radiation, sunscreen formulation, and why SPF numbers are often misleading.
Learn the difference between UVA and UVB protection, how sunscreen testing works, and what broad-spectrum protection actually means in real-world skincare.
In This Masterclass:
• UVA vs UVB
• SPF calculations explained
• Mineral vs chemical filters
• Why SPF 100 is misleading
• Application quantity problems
• PA ratings & star systems
• South African UV exposure
• SPF in anti-ageing protocols
Видео SPF Explained — Everything You Were Told About Sunscreen Is Wrong | The Ingredients Doctor канала The Ingredients Doctor
Learn the difference between UVA and UVB protection, how sunscreen testing works, and what broad-spectrum protection actually means in real-world skincare.
In This Masterclass:
• UVA vs UVB
• SPF calculations explained
• Mineral vs chemical filters
• Why SPF 100 is misleading
• Application quantity problems
• PA ratings & star systems
• South African UV exposure
• SPF in anti-ageing protocols
Видео SPF Explained — Everything You Were Told About Sunscreen Is Wrong | The Ingredients Doctor канала The Ingredients Doctor
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12 мая 2026 г. 15:49:46
00:31:52
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