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Repeated injections into the same spot cause scar tissue and lipohypertrophy, both of which reduce B12 absorption over time

Education & Certifications: Registered Nurse (RN) Certified Laser Technician (CLT) Certified in Botox, Dermal Fillers, PRF/PRP Treatments & Laser Procedures Founder of Majestic Beauty Spa, Verrado, AZ

In the pivotal 2018 animal study by Neelakantan et al., systemic treat Mechanism of Action 5-Amino-1MQ inhibits NNMT (nicotinamide N-methyltransferase), an enzyme that catalyzes the N-methylation of nicotinamide using S-adenosylmethionine (SAM) as the methyl donor, producing 1-methylnicotinamide (MNA) and S-adenosylhomocysteine (SAH) as products

But if you just want the fast answer, most research shows GHK-Cu to be the more broadly studied copper peptide for both hair and skin

However - I've been reading a lot of comments of this lasting for months and months, and since I'm going to the beach in August (!!!!!!!!) I'm going to the doctor this Thursday, and then trying to get referred to a dermatologist