May 11, 2012 at 11:06 pm. How long a multi-dose vial eye drop can be used, apart from the temparature of preservation, has to do with the nature of the used preservative. Some preservatives may not keep for more than two weeks e.g. Benzakonium chloride while some can preserve up to one month especially the phenolics.
Definition of 'nail bar'. nail bar. noun. a type of beauty salon specializing in manicure and the decoration of, esp women's, fingernails. Example sentences containing 'nail bar'. But the action doesn't take place at the hair salons and nail bars.
Nail polish (also known as nail varnish) is a lacquer that can be applied to the human fingernails or toenails to decorate and protect the nail plates. The formulation has been revised repeatedly to enhance its decorative effects and to suppress cracking or flaking.