| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Skin Smoothness | 
        C
       | 
 | 
 | |||||||
| Wrinkles | 
        C
       | 
 | 
 | |||||||
| Facial Pores | 
        C
       | 
 | 
 | |||||||
| Outcome | Effect | Frequency | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Acne | ⇧ Increase | 
 | ||||||||