Oral and sublingual B12 forms must get absorbed before they are active in your body
(Some women apply retinols on alternating nights or twice weekly to avoid the skin irritation that can come with daily useor skip it altogether and just use GHK-Cu peptides topically.) If you have sensitive skin thats irritated by either retinol or vitamin C, then using a GHK-Cu peptide can be an effective and non-irritating option to promote collagen synthesis in the skin
Models included two predictor variables, including the number of motif occurrences in the 2 kb upstream region (x1) and the length of sequence scanned (x2)
Topical application uses concentrations between 0.005 and 0.1 percent in a cream base, applied twice daily to affected areas
They target aging through entirely different mechanisms, which means the comparison matters more for sequencing and stacking than for choosing one over the other
GHK-Cu is sold strictly for laboratory and research use only not for human or veterinary use, consumption, or clinical application