| 1 | The clear layer is glycerin. | |
| 2 | Warm the glycerin slightly to lukewarm temperature. | |
| 3 | Or, you can skim the glycerin off. | |
| 4 | Cleansers that contain lactic acid, glycerin or hyaluronic acid will work to clean the skin without provoking irritation. | |
| 5 | Including the ball bearings and glycerol, Frechette estimates the entire setup cost less than $300. |