Many personal and home care products encounter the same issue during development: they smell very fragrant from the bottle and have a noticeable scent during use, but after rinsing, towel-drying, air-drying, or standing for a period of time, the fragrance quickly weakens. Common solutions ...
Cationic surfactants are a class of surfactants whose hydrophilic end carries a positive charge in aqueous solution. Like other surfactants, they have an amphiphilic molecular structure: one end is hydrophilic, and the other is hydrophobic. What makes cationic surfactants different is that their ...
Cationic surfactants hold a unique place because of their positively charged headgroups, which interact strongly with negatively charged surfaces, from cell membranes and DNA molecules to clay minerals and silica particles.