Why should consumers reach for bar soap when shopping? Bar soap has the same cleansing effect as liquid soap and needs no preservatives and few additives. And thanks to its eco-friendly paper-based packaging, it gets good marks for sustainability. Plastic bottles and dispensers with liquid soap involve high transport costs and lots of packaging and plastic waste.
A plus for bar soaps is that they need no preservatives and can make do with fewer ingredients than liquid soaps. Since soap contains almost no water and has a higher pH, germs and bacteria have little chance of surviving.
Liquid products with their high water content and neutral pH have a very high risk of germ growth, making preservatives an absolute necessity. Synthetic products often contain a chemical cocktail of preservatives, thickeners, pH regulators and emulsifiers.
Both products have the same cleansing effect. They break up the natural oil layer on the skin along with the dirt, germs, bacteria and viruses it contains. The alkaline pH of bar soap is quickly neutralised by water. The skin’s protective layer is regenerated in a short time by the sebaceous glands in healthy skin.
Bar soaps work more efficiently than liquid soaps and last longer, and they are much more economical and less liable to excessive use. Pressing the dispenser once often yields more liquid soap that one really needs for hand-washing, and many users press two or three times.