Table 1.
Material | Formulation code (w/w) | |||
---|---|---|---|---|
F1 | F2 | F3 | F0 (–) | |
Extract | 5 | 7.5 | 12.5 | – |
Carbopol 940 | 2 | 2 | 2 | 2 |
TEA | 3.5 | 3.5 | 3.5 | 3.5 |
Propylene glycol | 10 | 10 | 10 | 10 |
Methyl paraben | 0.2 | 0.2 | 0.2 | 0.2 |
Propylparaben | 0.02 | 0.02 | 0.02 | 0.02 |
Purified water | ad 100 | ad 100 | ad 100 | ad 100 |
TEA = triethanolamine
F1: gel with 5% extract concentration
F2: gel with 7.5% extract concentration
F3: gel with 12.5% extract concentration
F0: gel with 0% extract concentration as negative control