Plastics for the production of bottles, tins and jars intended for cosmetic use, destined to contain liquid, powdery, solid or creamy substances. Suggested materials include polyethylene terephthalate (PET), low-density polyethylene (LDPE) or high-density polyethylene (HDPE), polypropylene (PP) or transparent polyethylene terephthalate (PETG). Flexible, odourless materials with high chemical and mechanical resistance designed to prevent any migration or contamination between product and packaging.