Tom Hoskinson
Member
psvensson said:Hydroquinone solutions are not regarded as dangerous by contact. Millions of people have used skin creams with hydroquinone in concentrations around a few percent, comparable to very strong developer. They are regarded as safe by dermatologists for use up to three months.
My choice of words was perhaps not the best. Most people don't react to dilute solutions of these chemicals (pyrogallol, catechol, hydroquinone, glycin, metol, etc.) via skin contact, but some do.
Good chemical safety practice says wear gloves, preferably nitrile gloves when handling the wet chemistry.