Comparison with L-Ascorbic Acid in the market
|
Brand
|
C’smax
|
SkinXXXX
|
Nexxx
|
|
Patent
|
2003
|
1994
|
Non |
|
%
|
22％
|
10%/15%/20%
|
20%
|
|
Solvent
|
amphiphilic solvent, pure C serum
|
Aqueous solvent, Ion style C
|
Liposome C
(C/O)
|
|
Feature
|
High stability, with patent solvent to absorb Vit. C rapidly and make Vit. C have longer stay in skin
|
Add resversatol and zinc to stimulate the absorption of Vit.C
|
To cover Vit.C with liposome in order to keep the stability of Vit.C
|
| Dis-advantage |
Non
|
Difficult to store. Need to put it in refrigerator after opening. Will be oxidized after using for a while. As it use water as solvent, the preservative and stabilizer are needed and which cause the skin irritation
|
Molecular weight and viscosity are increased, the absorption is decreased. Less effectiveness. Need to use device to release Vit.C covered by liposome
|
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