The presence of thiols in biological samples, such as glutathione, cysteine, and homocysteine, can react with the assay reagents
Additionally, GSH shifts the melanogenesis pathway away from eumelanin (the darker brown/black pigment) toward pheomelanin (the lighter red/orange pigment) by interacting with dopaquinone intermediates in the Raper-Mason pathway
In the UK, several options are available over the counter or on prescription
In the Parkison mouse model, SM alone detected 50 pathways differentially expressed between intact and lesioned striatum and ST alone detected 332, whereas SpaMTPs combined multimodal approach identified 892 (Extended Data Fig
However, it is essential to discuss this topic with your GP or a specialist rather than attempting to source or use unlicensed medicines independently