Mechanically recycled plastics will never have the same properties as virgin plastics. The recycling process reduces their resistance to chemicals, extreme temperatures and impacts. However, how much of an effect this has on their continued usage depends entirely on their application. Most plastic applications do not actually need the strength and resistance that a virgin plastic provides, so recycled plastic is a viable alternative. Consider a shampoo bottle. In normal household use, it is never likely to be exposed to extreme temperatures, to fall from a great height, or to be exposed to high pressure. The properties of a recycled plastic, even though of a lower quality than a virgin plastic, are therefore enough. However, for more demanding applications, adding a small amount of virgin material to a recycled plastic resin can create a plastic that has almost the same properties and strength as a completely virgin plastic. While this does not entirely eliminate the need for virgin plastics in the supply chain, it still contributes to a significant reduction in their production.