The horn, which is merely agglutinated hair, the same stuff as finger nails, has no pharmacological value.

ECONOMIST: Rhinos at risk

There is no hint of brick-dust whatsoever beneath Ash's well-shaped finger nails.

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The family said these were removed after a few days, but when they next visited there was a nil-by-mouth sign above her bed and they also found faeces under her finger nails.

BBC: Essex