| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Hyperpigmentation | 
        C
       | 
 | 
 | |||||||
| Skin Elasticity | 
        C
       | 
 | 
 | |||||||
| Skin Firmness | 
        C
       | 
 | 
 | |||||||
| Acne | 
        C
       | 
 | 
 | |||||||
| Skin Smoothness | 
        C
       | 
 | 
 | |||||||
| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Collagen | 
        D
       | 
 | ||||||||
| Oxidation | 
        D
       | 
 | ||||||||
| Collagenase | 
        D
       | 
 | ||||||||
| Aryl Transcription Factor | 
        D
       | 
 | ||||||||
| Melanin | 
        D
       | 
 | ||||||||