True colloidal silver is actually colloidal silver. However, virtually all products sold as colloidal silver are actually mostly ionic silver and even the very best ones which are mostly colloidal silver still containi at least some ionic silver content. I only know of two commercial products which are mostly colloidal silver (not including those which artificially suspend silver particles via the use of gelatin or other added substances).
Silver produced either at home or commercially via electrolysis (passing a current between two silver electrodes) produces mostly ionic silver. At most, such production may give you 15% colloidal content. How do you make your "colloidal silver"?