A Novel Approach for Development and Characterization of Effective Mosquito Repellent Cream Formulation Containing Citronella Oil

Table 3

Optimization of mosquito repellent cream.

Parameters	Prototype 1		Prototype 2		Prototype 3		Prototype 4		Prototype 5
	Results	Changes	Results	Changes	Results	Changes	Results	Changes	Results	Changes
Elegancy	Poor	—	Acceptable	—	Acceptable	—	Good	—	Good	—
Emulsification	Acceptable	—	Acceptable	Change emulsifier	Good	—	Good	—	Good	—
pH	5.5	(+) KOH	6.1	(+) KOH	6.7	—	6.7	—	6.7	—
Consistency
Softness^@	Very soft/not-acceptable	(+) Cetostearyl alcohol	Hard/not-acceptable	(−) Cetostearyl alcohol (+) Stearyl and cetyl alcohol	Very soft/not-acceptable	(+) Stearic acid	Soft/acceptable	(+) Stearic acid	Soft/acceptable	—
Greasiness^@	Acceptable	—	Acceptable	(−) PG	Acceptable	(−) PG	Acceptable	—	Non-greasy/Acceptable	—
Stickiness^@	Acceptable	—	Sticky/not-acceptable	(−) Cetostearyl alcohol	Sticky/not-acceptable	—	Sticky/not-acceptable	(−) PG	Non-sticky/Acceptable	—

Acceptable/not-acceptable, PG: propylene glycol, and KOH: potassium hydroxide.