| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Skin Smoothness |
A
|
|
|
|||||||
| Skin Elasticity |
A
|
|
|
|||||||
| Wrinkles |
A
|
|
|
|||||||
| Skin Firmness |
C
|
|
|
|||||||
| Skin Thickness |
E
|
|
|
|||||||