You can have Adam mix Dektol powder to the stock solution that you can further dilute for use without handling the powder yourself. For years I've dilute Kodak Polymax T liquid concentrate as needed for printing with Kodak and other brands of paper. It should be more available than some imported products. Porter's Camera Store in Cedar Falls stocks it. I also use it for quick rough sheet film developing, for boosting contrast in sheet film, and always for developing Tech Pan to make the most of that film's high contrast and fine grain.

I suspect modest precautions make darkroom chemicals safer than many of the foods and toxins that people overinduolge in for pleasure.