Tonicity refers to the affect of a solution on a cell.
Surfactants are used in many cosmetics as foaming agents, cleansers, emulsifiers, conditioners and solubilizers or dispersants.
Research papers are written by scientists after performing a series of experiments that can take years to finish. These written reports are also called ‘primary literature’ because they are the first hand account written by the investigators who do the experiments. These papers are then published in scientific peer reviewed journals for not so leisurely reading.
The part of hops used is the flower cluster although it looks more like a cone and is called a strobile.
Does the alkaline environment or the saponification process itself of handmade soaps destroys any benefit from additives?
I have found recently that some companies and organizations are coming out saying the support the Safe Cosmetics Act of 2011 but yet still find many faults in the bill.
Overall it is still a case of an activist group who knows nothing about the cosmetics business trying to make laws about things they do not understand. The bottom line still is that this bill will not make cosmetics safer.
Saponins are plant chemicals are used for their detergent-like or cleaning properties.
Frankincense, also called olibanum is the gum resin tapped from Boswellia (Boswellia serrata mainly) trees found in Arabia, Africa and India.
Lemon balm (Melissa officinalis) is in the mint family, which explains why it grows so well.