Behind the sunscreen | Before and After #4 | SPF testing investigation // TRAIN BRAIN

Behind the sunscreen | Before and After #4 | SPF testing investigation

When the founder of a skincare company discovers his zinc sunscreen product potentially isn't achieving the protection it's supposed to, it doesn't take long before he realises the problem is far bigger than he first thought.
This is the fourth episode in Before and After - a new series by Background Briefing that exposes how medical hype spreads online, who profits, and who pays.
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