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Formulation composition of gels manufactured using Method I.
| Component | Test product 0.04 % | Test product 0.06 % | Test product 0.08 % | Test product 0.1 % |
|---|---|---|---|---|
| Tretinoin-loaded-microparticle, 1 % w/w | 4 g | 6 g | 8 g | 10 g |
| Propylene glycol | 23.65 g | |||
| Carbomer 974P | ||||
| Glycerin | ||||
| PPG-20 | ||||
| Cyclomethicone and dimethicone | ||||
| Sorbic acid | ||||
| BHT | ||||
| Benzyle alcohol | ||||
| EDTA | ||||
| Trolamine | ||||
| Purified water | ad. 100 g |
