Table 2 The composition of different gel bases
Ingredients | TEG 1 | TEG 2 | TEG 3 | TEG 4 |
|---|---|---|---|---|
Carbopol 934 (% w/w) | 1 | 2 | – | – |
HPMC K4M (% w/w) | – | – | 2 | 3 |
Methyl paraben (% w/w) | 0.02 | 0.02 | 0.02 | 0.02 |
Propyl paraben (% w/w) | 0.01 | 0.01 | 0.01 | 0.01 |
Propylene glycol (%w/w) | 1 | 1 | 1 | 1 |
Triethanolamine (%v/w) | q.s | q.s | – | – |
Distilled Water (% w/w) | Up to 100 | Up to 100 | Up to 100 | Up to 100 |