Fluoride is found in many toothpastes designed to prevent tooth decay. As a matter of fact, the fluorination of water and toothpastes is felt to be the major factoring contributing the increasing number of adults retaining their own teeth into maturity.
Dermal pinning is a technique that goes by many different propriety names, including dermal poration and dermal needling. It is essentially the use of a roller device with many small needles that is pressed and rolled over the skin. It can be used with or without electricity.
Fragrances and masking fragrances are one in the same, but have a different purpose. Fragrances are designed to create a perceivable pleasant smell while masking fragrances are designed to mask a bad smell creating a neutral smell.
This is the second most difficult question to answer in dermatology behind how often should I wash my face. I am not sure that all dermatologists would agree on the frequency of hair washing, and perhaps this is due to the fact that shampoo is to wash the scalp and beautify the hair.