Skinfix formulates using USP grade petrolatum only in products where it is needed to support skin barrier repair. Petrolatum is an ideal barrier protectant because it is occlusive and non-irritating. It also allows for the slow release of active ingredients onto the skin barrier, which is why it is used in many prescription ointments. It was used in the original healing balm created over 100 years ago and has been proven to work for generations. We have tried alternative ingredients and have not found anything as effective when tackling barrier repair. We use a type of petrolatum (USP Snow White) that is the cleanest form is purified to remove Polycyclic Aromatic Hydrocarbons (PAH's). Each batch of ingredients is certified to meet the PAH standards according to USA FDA codes 21 CFR 172.886, 21 CFR 178.3710, 21 CFR 178.3700 and 21 CFR 172.880.