Epinephrine (also known as adrenaline) is a hormone and a neurotransmitter. It increases heart rate, constricts blood vessels, dilates air passages and participates in the fight-or-flight response of the sympathetic nervous system. Chemically, epinephrine is a catecholamine, a monoamine produced only by the adrenal glands from the amino acids phenylalanine and tyrosine. (from Wikipedia; chain not included)
Can be used as a pendant on a necklace, keychain, earring, or whatever you find it useful for.
Note: the material "(Polished) Strong & Flexible Plastic“ is not recommended for keychains! It’s great for earrings though!
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