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Is Barley sh-Polypeptide-17 vegan?

Barley sh-Polypeptide-17 is a single-chain recombinant human peptide produced by barley plants using transient expression or transgenesis, based on a synthesized gene identical to the human gene coding for Interleukin 1 Alpha. Although modeled on a human protein, it is produced entirely in plant systems without animal-derived material.

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