Single chamber water-soluble refill dose article enclosing a concentrated cleanser composition and kits having same

A method of mixing a concentrated cleanser that is stored in a single compartment defined by a water-soluble film, the method comprising:

• either melting an anhydrous first surfactant by application of heat or mixing the anhydrous first surfactant with at least one other liquid ingredient, the first surfactant being selected from the group consisting of ammonium lauryl sulfate, ammonium laureth sulfate, triethylamine lauryl sulfate, triethylamine laureth sulfate, triethanolamine lauryl sulfate, triethanolamine laureth sulfate, monoethanolamine lauryl sulfate, monoethanolamine laureth sulfate, diethanolamine lauryl sulfate, diethanolamine laureth sulfate, lauric monoglyceride sodium sulfate, sodium lauryl sulfate, sodium laureth sulfate, potassium laureth sulfate, sodium lauryl sarcosinate, sodium lauroyl sarcosinate, potassium lauryl sulfate, sodium trideceth sulfate, sodium methyl lauroyl taurate, sodium lauroyl isethionate or methyl isethionate, sodium lauroyl lactylate, sodium laureth sulfosuccinate, sodium lauroyl sulfosuccinate, sodium tridecyl benzene sulfonate, sodium dodecyl benzene sulfonate, sodium olefin sulfonate, sodium decyl sulfate, olivoil avenate, disodium coco-glucoside citrate, ammonium ether sulfate, laureth-5 carboxylic acid, potassium olivoyl hydrolyzed oat protein, sodium cocoyl glutamate, an aliphatic sulfonate, and mixtures thereof;
• mixing sequentially into the first surfactant a rheology modifier and a first alkaline substance, in either order to form an intermediate mixture;
• wherein the rheology modifier is selected from the group consisting of carbohydrate gums, swellable acrylate polymers, cationic guar, cationic modified cellulose, synthetic cationic polymer, high molecular weight polyethylene glycols, superabsorbent polymers, and combinations thereof, and
• the first alkaline substance comprises an ethoxylated amine present as a stabilizing amount to prevent the rheology modifier from increasing the viscosity of the composition until diluted with water;
• and
• mixing remaining ingredients into the intermediate mixture to form a concentrated cleanser composition that when diluted with water to form a cleanser volume will result in a cleanser with a viscosity within a range of 2000 cps to 50,000 cps.