The purpose of shaving cream is to moisten the skin and prep it for hair removal. A very important aspect of shaving cream preparation is pH level. It should be close to what the skins natural pH level is so there is not an excessive amount of irritation caused.
Two of the most common ingredients found in shaving cream are stearic acid triethanolamine. There are also many other ingredients as well.
When shaving cream is manufactured the process begins by heating the fatty portions of the formula. After is has been smoothed it is allowed to cool. More ingredients are added at this point and it is mixed. This is when fragrance can be added. The mixture is still allowed to cool and it is screened to remove any lumps that may remain behind. The next part of the process is packaging.