Benzos post-withdrawal recovery supplements

[alf meneas]

Sorry if covered elsewhere...

Was speaking to someone who (allegedly 8)) has knocked their diazepam habit on the head.
He had some suspicious white powder, and when I asked him about it told me it was 'a supplement to help his brain recover'.
I thought at the time he said it was 'chlor-lime' but didn't get him to spell it and an internet search turns up nothing along those lines.

Any help?
What's he bought, and is it any use?
Is he just stringing me along?

 

[YBC]

Choline? Probably not of much use beyond placebo.

 

[Ignot]

Supplement to recover? Yeah right

 

[HdoubleODeezy]

How did he ingest the powder and how much of it did he take?
That may help narrow it down.