A 1930s ad promoting the false idea that bad skin is caused by internal toxins and can only be cured by ingesting yeast. (6/20)

A 1930s ad promoting the false idea that bad skin is caused by internal toxins and can only be cured by ingesting yeast.

Written by Aurora Hale

I am a blogger, entrepreneur and small business coach. I'm an introvert and cat lover. My favourite hobbies are breakfast, lunch, and dinner.

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