There are some ingredients which has been included o ensure that you get a shampoo to pass hair drug test now matter how much you have been abusing drugs and some other banned substances. Some of the most prominent components in a shampoo include surfactant (sodium sulphate compounds which provide lather), conditioners (such as acetyl alcohol), citric acid, sodium chloride, Preservatives, and perfume among several others.
Looking at the functions of each component, preservatives for instance are added to a shampoo to destroy a wide range of destructive micro-organisms which can destroy the shampoo in a relatively short period of time, thus you should be careful of choosing a shampoo to pass hair drug test, anyone that has no preservative may likely be destroyed in a relatively short period of time. Sodium chloride acts as a thickening agent in a shampoo, while citric acid functions as a balancing product which balances the pH of the shampoo, because it often becomes alkaline in nature.
When you are looking for a shampoo to pass hair drug test, always look for one that contains tetra-sodium EDTA, this component ensures that the water used in rinsing off the shampoo from the hair becomes softened, it should be noted that the inability to removal calcium and magnesium from water can cause the hardness of the water, the hardness of water will make the surfactants present in the shampoo (such as sodium sulphates) to become insoluble and a lather will take a longer time to form when you apply the shampoo in your hair.
There are several types of surfactants that are [resent in a hair wash shampoo, they also offer different functions. Amphoteric surfactants decrease irritation while improving the actions of the active contents that increase lather formation. Non ionic surfactants are often avoided in the making of shampoos because they strip hair out and cause scalp irritation.
An ideal shampoo to pass drug hair test should come with all these ingredients in order to ensure that the hair is free from drug residues and other metabolites.