Liquid detergent composition

A liquid detergent composition consisting essentially of:

• (a) from about 15% to about 50% of an anionic surfactant selected from the water-soluble salts of organic sulfuric reaction products having in their molecular structure an alkyl radical containing from about 8 to about 22 carbon atoms and a radical selected from the group consisting of sulfonic acid, sulfuric acid ester radicals and mixtures thereof
• (b) from about 2.5% to about 10% of an amide of a fatty acid having the general formula
• R.sub.1 --CO--N(H).sub.m (R.sub.2 OH).sub.2-m
• wherein R.sub.1 is an aliphatic hydrocarbon radical having from about 7 to about 21 carbon atoms, R.sub.2 is an aliphatic hydrocarbon radical having from 1 to 3 carbon atoms and m is zero, 1 or 2,
• (c) from about 2% to about 25% of a reducing agent selected from the group consisting of water-soluble salts of sulfites, bisulfites, thiosulfates, metabisulfites, salts of phosphorus and hypophosphorous acids, salts of hydrazine and hydroxylamine, stannites and mixtures thereof,
• (d) from about 2% to about 20% of a protein denaturant selected from the group consisting of urea, guanidine and its salts, thiourea, biuret, thiobiuret, ammonia, monoethanolamines, triethanolamine, and mixtures thereof, and
• (e) from about 20% to about 88.5% water,
• said detergent composition providing a pH of at least 9.5 in a 0.4% solution in water at 20.degree. C.