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A tolerable upper intake level (UL)the amount you can safely take without risk of severe side effectswas never set for it because it has a low potential for toxicity, and the body does not store it in excess (NIH-a, 2021)

Murata-Kamiya N, Hatakeyama M

STORAGE: Store in a dry and cool place, protect from light

Experimental investigations have reported interactions with VEGFR2 phosphorylation, focal adhesion kinase (FAK) activation, ERK1/2 signaling, nitric oxide-associated pathways, and extracellular matrix regulatory networks