That is true, the package I have comes with a dire warning of skin toxicity. Once again, I try to follow all safety procedures and ensure minimal exposure. After all, I also use cyanide for fixing my ambrotypes. Treat chemicals with respect and nothing bad will come forth.
The reason I did this with CD-1 is that it's still available, at a reasonable price. CD-2 is also available, at 3x the price.