The name of a preservative on the ingredients list often raises more questions than the name of the ingredient advertised on the front. It is worth looking at the cosmetic as a whole formulation. The technological feature is part of the product, not an automatic argument for its rejection or selection.
Product protection and care
The preservative system serves to protect the formulation against the development of undesirable microorganisms. This is a different role than the care effect described in advertising. On this basis, the cosmetic should not be attributed a therapeutic effect or treated as a means of disinfecting skin or accessories.
One component does not describe the system
You may see phenoxyethanol, potassium sorbate or sodium benzoate on the list. Their role depends on the entire recipe. It is impossible to calculate maintenance efficiency from a list of names alone, just as it is impossible to reproduce percentages. Do not mix the finished cosmetic with water or other products.
How to use the package
Follow the manufacturer's instructions and keep the dispenser clean. Do not unnecessarily pour it into a random container, do not put the taken portion back and write down the date of opening if it concerns PAO. Changing packaging also makes it difficult to retain information about the batch and date.
No preservatives does not mean for everyone
The absence of a specific name does not guarantee tolerance or replace the rules of use. With a known allergy, look for the exact ingredient, not the overall ranking. If the product has changed its appearance, smell or consistency, do not try to save it with additives; clarify the situation with the manufacturer or seller.
Check the dictionary
Sources and further reading
Sources help explain the topic; do not confirm the composition or action of a specific FEROSUP product.