surfactanttocosurfactant
Surfactanttocosurfactant is a term that appears to be a misspelling or a portmanteau. In the field of chemistry and material science, surfactants are compounds that lower the surface tension between two liquids, between a gas and a liquid, or between a liquid and a solid. They are characterized by having both hydrophilic (water-loving) and lipophilic (oil-loving) parts. This dual nature allows them to orient themselves at interfaces, effectively stabilizing emulsions and dispersions.
The term "tocosurfactant" is not a recognized chemical compound or class of compounds. It is possible that
Alternatively, the phrase might be intended to refer to a combination of a surfactant and a co-surfactant.