Rosemary oil for hair growth? How to spot bad science

Is rosemary oil an all-natural, science-backed treatment for hair loss that works as well as minoxidil? No. Let's take a closer look at the study that everyone keeps pointing to...

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0:00 What is rosemary oil meant to do?
1:21 How peer review works
5:42 Never trust the abstract
7:34 The abstract
8:55 The actual paper
9:45 Dermatology problems
11:35 A whole flood of problems
15:20 The "significant" results
17:29 Why people might think it "works"
19:31 My conclusions vs "peer reviewed" conclusions
20:13 What about other evidence? Mechanistic reasoning
23:16 Can it work like finasteride? (5-alpha reductase inhibitor) (No)
25:04 Is rosemary oil worth trying? How to use it and what to try instead

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🙋🏻 I'm Michelle, a chemistry PhD, cosmetic chemist and science educator, here to explain how beauty products work, debunk myths, and help you make smarter decisions about your skincare, hair and makeup!

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