One thought on “Whiten teeth with urine William Lawrence Sr Omnibit 3-19-20”

  1. They also allowed the fullers, the wool-workers, gather urine from public lavatories. As you note, it contains ammonia, and it was used to soak raw wool to remove the lanolin and make it easier to work it into fiber for cloth. I think that custom continued through history up to the industrial age.

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