| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Skin Firmness | 
        B
       | 
 | 
 | |||||||
| Skin Elasticity | 
        B
       | 
 | 
 | |||||||
| Wrinkles | 
        B
       | 
 | 
 | |||||||
| Peeling | 
        C
       | 
 | 
 | |||||||
| Skin Hydration | 
        E
       | 
 | 
 | |||||||