• Secondly, it is our view that true equilibration of large WLMs is not practically feasible in the relatively small simulation boxes used in this type of computational study. WLMs have typical aggregation numbers in the range of many thousands to millions. In our choice of system size, the total number of surfactants present at 15 wt% is ≈ 3000, with the precise number depending upon the mole ratio of CAPB to SLSar. Whilst it would be possible to form a structure containing three-thousand surfactants, such a situation where there is only a single WLM in the simulation box is not representative of equilibrated experimental systems. These would have a distribution of micelle sizes in the sample. To be able to adequately model a system that was able to produce large WLM structures as part of a representative distribution of micelle sizes is beyond routine computational study at this point. Another consideration is that the equilibrium size of WLMs will also be affected by the micelle breakage rate for a given system. Previous authors suggest the breakage rate of WLMs for similar systems to be the region of tens to hundreds of milliseconds, which is many orders of magnitude beyond current accessible simulation time.