What is the simplest way to prepare a lipstick that is suitable for children approximately 15 years old?

How can tretinoin be dissolved or processed in a solution containing 2% minoxidil, 0.05% tretinoin, 10% propylene glycol, 100 ml ethanol, and 100 ml aqua?

Should Arlacel 83 be added to the following preparation: 20 g Elocom lipophilic cream, 1 g erythromycin base, and cold cream up to 50 g?

Is it possible to prepare a clear gel containing 12 g of theophylline, 10 g of hamamelis tincture, 30 drops of rosemary oil, and carbopol gel up to 300 g?

Multiple dentists are requesting a stabilized 3% sodium hypochlorite solution for disinfecting root canals after nerve removal and before filling, a product they normally obtain from the Netherlands; how can this be stabilized without hindering the release of active chlorine, is buffering to a pH of 8.5 or 11 a sufficient solution, and what is the specific situation regarding chlorine degrees?

What is the permissible amount of isosorbide dinitrate to be used in an ointment for treating anal fissures in children aged 1 to 2 years?

What data is available regarding the stability, shelf life, and excipients for processing a beta-blocker, such as metoprolol or atenolol, into a suppository or oral solution?