Matrixyl vs GHK-Cu is one of the most important comparisons in skin regeneration research both peptides stimulate collagen production, but through fundamentally different mechanisms that determine which is right for specific research applications
References: Seiwerth S, Milavic M, Vukojevic J, Gojkovic S, Krezic I, Vuletic LB, Pavlov KH, Petrovic A, Sikiric S, Vranes H, Prtoric A, Zizek H, Durasin T, Dobric I, Staresinic M, Strbe S, Knezevic M, Sola M, Kokot A, Sever M, Lovric E, Skrtic A, Blagaic AB, Sikiric P
B12 injections do not require any type of aftercare, as they are very safe and cause little discomfort beyond the initial sting of the needle in the thigh
Primary Sources FDA Pharmacy Compounding Advisory Committee
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