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Where GHK-Cu uses glycine as its first amino acid, AHK-Cu uses alanine
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There is no advantage to using the light sensitive forms of cobalamin, such as methylB 12 or adenosylB 12 , instead of the stable cyano or hydroxy forms, which are readily converted in the body into the coenzyme forms, methylB 12 and adenosylB 12
Reason 3: Injection anxiety outweighs benefit
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