So, I have gone and done some research for this particular experiment. I went and researched the ingredients of nail polish. I found that the ingredients largely affect the strength and durability of a nail varnish. I found out that nail polish has several ingredients, the three main ingredients are: a solvent (dries fast to ensure the varnish dries hard), pigment or colorant (suspends the pigment that is dissolved in the solvent) & hardening agents (makes the plastic harden when exposed to the air. This also helps to trap the pigment in the plastic.)
I also found some useful information here:
Hardeners plasticisers and resins
There are many different nail polish ingredients to make hundreds of different products. The main plasticiser that causes concern is a phthalate. (See below)
Other resins and plasticizers used include castor oil, amyl and butyl stearate, and mixes of glycerol, fatty acids, and acetic acids.
There are many, many ways of combining ingredients to create saleable products with desirable qualities. So many products have huge lists of ingredients.
Nail polish ingredients that cause concern include phthalates (pronounced "thal-ates").
Phthalates are used to keep nail polish from chipping. They do this by having a plasticising effect on the other ingredients.
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