| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Skin Brightness | 
        B
       | 
 | 
 | |||||||
| Skin Smoothness | 
        B
       | 
 | 
 | |||||||
| Hyperpigmentation | 
        B
       | 
 | 
 | |||||||
| Outcome | Effect | Frequency | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Skin Discomfort | ⇧ Increase | 
 | ||||||||