Since it's reported that repeated vitamin C can lighten (hennaed) hair, and Malibu C crystals also has a high concentration of ascorbic acid, has anyone else also experienced lightened hair with Malibu C.

I've hennaed my hair with a herbal mix in 2018 (so lower lawsone conc) but in 2019 did monthly chelating rinses with Malibu C or vitamin C and noticed my hair looked lighter overtime and the henna color has been faded (but my virgin color is also reddish brown).