Options for managing tolerance include a brief dose reduction for 4 to 8 weeks ("drug holiday" at a lower dose, not complete cessation), lifestyle optimization to maximize the medication effect, evaluation for other contributing factors (thyroid function, cortisol, sleep quality, medication interactions), and consideration of adding a complementary compound to address specific aspects of the plateau
(1976) Rat (male) oral 40 5 min 55 Pachecka et al
GHK-Cu is a peptide that has been shown to play a role in skin repair and wound healing
However, in pathological conditions, excess NO can react with superoxide to form ONOO , a potent oxidant that can nitrate tyrosine residues in proteins and damage lipids and DNA [52]
UV and visible light catalyse oxidation by generating free radicals that attack amino acid residues
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