Whitens and brightens skin gradually and safely
Hepatic cytochrome P450 isoenzymes CYP1A2 and CYP3A4 mediate N-de-ethylation, so polymorphisms or competitive inhibition at these pathways (e.g., by certain antidepressants or azole antifungals) may increase systemic exposure, underscoring the importance of individualizing dosage and monitoring serum concentrations in prolonged infusions
Gassmann M, Mairburl H, Livshits L, Hackbusch M, Malczyk M, Kraut S, et al
Soft, Smooth Texture Helps refine skin texture and leaves skin feeling soft and supple
J Clin Endocrinol Metab 83:16541661 Ding H, Gao XL, Hirschberg R, Vadgama JV, Kopple JD (1996) Impaired actions of insulin-like growth factor 1 on protein synthesis and degradation in skeletal muscle of rats with chronic renal failure
The cycling approach alternates treatment periods with break periods, typically following patterns like 3-4 months on followed by 1-2 months off, 6 months on followed by 2-3 months off, or flexible cycling based on skin condition assessment and benefit plateau timing