Frothing with a dairy frother, infusion machine, hand blender, wand or stick processor- introduces air into the product you’re mixing.
These mixers of various design are also called emulsifiers, that add air to an ingredient or product via emulsion- whipping action and centrifugal force (physics!)
This is incredibly helpful if you are creating your own skin & coat conditioners or emollient type masques.
It is also very similar to the process that happens by using a shampoo proportioner that mixes shampoo concentrate, water, and air. 😉
*Shampoo and higher quality conditioners already contains emulsifiers*.
These are introduced into the ingredient formulation so that the product stays mixed and does not settle or separate.
Depending on the product brand and their specific recommendations frothing doesn’t necessarily benefit nor is it necessary to be used as a process for many products including shampoos.
Frothing for coat & skin care applications such as a moisturizing masque or a high oil content conditioning treatment helps to make that product go farther and use less.
It also helps it to stick easily to the hair & skin so that you don’t waste it.
As well, it makes it easier to see where you have applied the product and where you have not.
I’m an advocate for frothing, but I will tell you that in most cases it does not make any sense to be doing it for a shampoo.
In fact, it makes more work during your bathing process. Especially if you’re already using any type of a shampoo application machine or recirculator.
Just my two cents.
If you are buying product from a company that specifically tells you to apply the shampoo that way *in order for it to work*, then they may have something going on specific to their formulation that defies chemistry and physics, but I find that highly unlikely.
**Equally important: be sure that if you are frothing up diluted shampoo or conditioner or *any topical hair application, that you do not save it. Doing so once you dilute the product you also dilute the preservative and you are putting yourself at higher risk for secondary bacteria growth in the product.
**I will be releasing a video shortly showing a technique of frothing for conditioning masks and oil moisturizing wraps**