Effect of Film-Forming Polymers on Release of Naftifine Hydrochloride from Nail Lacquers

Table 4

Characteristics of tested nail lacquer films.

Polymer	Concentration range; % w/w	Solution characteristics	Nail lacquer film
			Max. drying time	Esthetic characteristics	Water resistance	Common surface structure
Eudragit RL100	10; 12.5; 15	Clear, runny solution. Low viscosity.	≤2 min.	Clear, slightly glossy, not sticky.	Resistance depends on amount of film-former, plasticizer, and both their ratios.
Eudragit RS100	10; 12.5; 15	Clear, runny solution. Low viscosity.	≤4 min.	Clear, slightly glossy, sticky.	Resistance depends on amount of film-former, plasticizer and both their ratios.
Ethyl cellulose	10; 12.5; 15	Opalescent, thick solution. Hardly runny.	≤8 min.	From clear to white.	Film starts washing out on 3rd day of an experiment. No significant difference while changing polymer or plasticizer amount.