Are cordyceps tough on the kidneys?

I just added Cordyceps into my herbal rotation. (I’ve been doing knotweed for a few weeks, on top of my usual other supplements). I’ve immediately noticed dark urine since taking it.
I am vigilant to hydrate during the day, along with trace mineral drops, and baking soda/lemon juice throughout. It’s surprising to see this.

i have been taking 3ml 4x a day of 1:4 50% alcohol tincture - per buhner - along with a long list of other buhner herbs and have not found any adverse effects from cordyceps.

Anything I've ever seen about cordyceps and kidneys has been a positive toward helping kidneys. According to studies I've seen and numerous other stories about it, cordyceps, supposedly, lowers creatinine (good thing), helps lower protein in urine for those with that problem, lowers inflammation, increases hemoglobin, etc...

I've been using cordyceps for about three years now with no problems. Of course, all meds and herbs don't fit everyone, but it has all been positive here. Studies in NCBI are the ones I look at as they seem to have the most validation. Perhapsp Google ncbi cordyceps, and you should find a lot of information that would help you in your search for information, Canary.