You may know that in UK herbal essences comes both in a jar (marked as an intensive treatment) and as the tall bottle (regular conditioner, available in US as well)
|the infamous picture|
|Ingredients: Hello Hydration Tall Bottle|
|Ingredients: Hello Hydration Jar|
I generally only look at the first five to six ingredients (here is why). Therefore the key part of this list is
|Stearyl Alcohol||Stearyl Alcohol|
|Cetyl Alcohol||Behentrimonium Chloride|
|Stearamidopropyl Dimethylamine||Cetyl Alcohol|
|Glutamic Acid||Bis Aminopropyl Dimethicone|
|Bis Aminopropyl Dimethicone|
The Jar: Behentrimonium Chloride in the jar is an excellent surfactant for softness . The jar is marketed as an intensive conditioner and the addition of this ingredient quite high up in the list is likely to be what contributes to the softness experienced
The Bottle: The tall bottle contains stearamidopropyldimethylamine as its key surfactant. This ingredient gives slip to hair but is also easy to wash off. It will add softness to hair but not as much as behentrimoinum chloride. The bottle also contains glutamic acid which is an amino acid which can be taken up by hair from conditioner (but interestingly not from water........we'll talk about it another day).
My experience has been:
Jar: Wonderful softness that lasts for days. Not much slip.
Bottle: Excellent slip but not much softness. If left on for too long (hour plus) can make hair feel quite strange - kind of crunchy, kind of crispy but not brittle......very odd.
Next up: Same brand, different conditoners, same ingredients..........different effect?