| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Skin Smoothness | 
        B
       | 
 | 
 | |||||||
| Skin Thickness | 
        B
       | 
 | 
 | |||||||
| Wrinkles | 
        B
       | 
 | 
 | |||||||
| Skin Elasticity | 
        D
       | 
 | 
 | |||||||
| Outcome | Grade | Effect | Studies | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Elastic Fibres | 
        B
       | 
 | 
 | |||||||
| Collagen | 
        B
       | 
 | 
 | |||||||
| Glycosaminoglycans | 
        B
       | 
 | 
 | |||||||
| Lymph Vessels | 
        D
       | 
 | ||||||||
| Autophagy | 
        D
       | 
 | ||||||||