GHK-Cu primarily focuses on skin regeneration, repair, and remodeling, offering a different approach than direct acne treatments
Regardless of its origin, vitamin D undergoes two steps: first, in the liver, it is hydroxylated by 25-hydroxylase (CYP2R1) to form 25-hydroxyvitamin D [25(OH)D], and subsequently, in the kidney, it is hydroxylated by 1-hydroxylase (CYP27B1) to generate the biologically active form, 1,25-dihydroxyvitamin D [1,25(OH)D] ( 1,25(OH)D exerts its effects by binding to the nuclear vitamin D receptor (VDR), forming a heterodimer with the retinoid X receptor (RXR), which then binds to vitamin D response elements (VDREs) on target genes
They must be able to prove that they are prescribing off licence in the patients best interests
Initial studies reported that concentrations of AFB 1 which are likely to be achieved in the liver following ingestion of real-world concentrations of AFB 1 are bioactivated to AFBO primarily by CYP1A2, whereas much higher concentrations are catalyzed by CYP3A4 [30], [46], [79]
This is a precautionary concern