ABS is defined as Acrylonitrile-Butadiene-Styrene which is blow molded plastic.
This is a specific type of plastic which is used in artificial nails for the actual tips. There are different options available, but some are designed to be more resistant to splits or cracks than others.
Daily Hair Tip
With any hair care products it is important to remember that a little goes a long way. Overuse of any products can make hair look lank, oily or greasy.