So I guess that’s why you don’t hear about SLS being used solo?
By the way I considered using SLS in HI&I products as an alternative to alkylbenzene sulfonates.
Also by using copolymers, such as those envisaged by U.S. Pat. No. 4,423,199, containing from 20 to 25 weight percent of N-alkyl acrylamide units, it is possible to increase the viscosity of certain surfactants in solution, such as sodium lauryl sulfate at a concentration of 8 percent, but the texture of the resulting gels is too stringy on discharge and is not therefore practically suitable.
https://patents.google.com/patent/US5324765
Anionic surfactant compositions such as sodium laureth (2EO) sulfate (SLES)/cocodiethanolamide (CDEA) provide a wide viscosity/salt curve that is only moderately salt sensitive and is about 3.5% salt tolerant, Figure 1. Ammonium lauryl sulfate (ALS) compositions, however, have a higher narrower viscosity/salt curve with a significantly lower salt tolerance of about 0.6%, Figure 2.
Use of anionic compositions, particularly with ALS containing compositions at high active ingredient levels and those containing amphoterics such as betaines, develop very high nonpourable viscosities that generally require thinning agents to lower viscosity.
https://patents.google.com/patent/EP0574086A2/en