I have a pretty simple shampoo formula using 30% Iselux SFS with an additional 6% Betaine but the base formula has such a strong odour (from the Iselux SFS). I have tried so many different types of fragrances from different fragrance houses and none of them have sufficiently masked the smell.
The shampoo itself seems to be quite a good product; it foams well, is gentle, and rinses out well so I don't want to play with the bulk of it too much. Can anyone suggest anything to help mask the smell? I have tried reducing the Iselux SFS by 4% and adding in Plantapon LGC Sorb or Disodium Cocoyl Glutamate but it hasn't made the odour any better. I fear I will always have this odour issue when using isethionates!