| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Skin Brightness | 
        B
       | 
 | 
 | |||||||
| Skin Smoothness | 
        B
       | 
 | 
 | |||||||
| Skin Thickness | 
        B
       | 
 | 
 | |||||||
| Under Eye Circles | 
        E
       | 
 | 
 | |||||||
| Hyperpigmentation | 
        E
       | 
 | 
 | |||||||
| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Porphyrins | 
        E
       | 
 | 
 | |||||||