Not only should there be effective ingredients in a product but they should also be present in sufficient concentrations to be effective. Apart from that, the combination of certain ingredients, the formula should be effective. Often, cosmetic companies claim to have clinically proven products, but in reality they may be referring to using clinically proven ingredients rather than a clinically proven formula. There is a crucial difference between the two as some ingredients can become diluted when introduced to the formula. The only way to know for sure if a product works is to test the formula as a whole, instead of basing assumptions on third-party, anecdotal evidence from specific ingredients.
Subcision is a process used to treat deep rolling scars left behind by acne or other skin diseases. It is also used to lessen the appearance of severe glabella lines, though its effectiveness in this application is debatable. Essentially the process involves separating the skin tissue in the affected area from the deeper scar tissue. This allows the blood to pool under the affected area, eventually causing the deep rolling scar to level off with the rest of the skin area. Once the skin has leveled, treatments such as laser resurfacing , microdermabrasion or chemical peels can be used to smooth out the scarred tissue. [ citation needed ]