Table 3. Permeation parameters of vitamin C from the vitamin C gel according to the application time.
| Time (min) | Flux (µg/cm2/h) | Accumulated amounta (µg/cm2) |
|---|---|---|
| 1 | 88.90 (R2 = 0.9776) | 1066.84 |
| 3 | 97.11 (R2 = 0.9738) | 1165.28 |
| 5 | 170.95 (R2 = 0.8767) | 2051.39 |
| 7 | 101.76 (R2 = 0.9636) | 1221.15 |
| 10 | 104.65 (R2 = 0.9541) | 1255.84 |
aAccumulated amount of vitamin C permeated at 12 h.