Preservative is crucial materials in any water based products. It prevents microbial growth and it will not be absorbed into your skin.  You can also check the maximum level allowed in finished products on cosIng website. I have been using three different preservatives brands. Plantaserv E / Euxyl PE 9010 INCI: Phenoxyethanol, Ethylhexylglycerin  Appearance: Clear […]