All Naturallythinking Essential Oils, Carrier Oils and Ingredients are 100% Pure
| Substance | Active |
| Glycerine | >= 99.5% |
Details on Composition and Specification Criteria
| Test Method | Test | Specifcation |
| European Pharmacopoeia | Appearance | Clear |
| European Pharmacopoeia | Smell | Absent |
| European Pharmacopoeia | Esters (ml 0.1M HCL solution | 8 minimum |
| ISO 6271 | Colour APHA (Hazen) | 10 maximum |
| European Pharmacopoeia | Water (%) | 0.3 maximum |
| European Pharmacopoeia | Refractive Index | 1.473 - 1.474 |
| European Pharmacopoeia | Density at 20c (g/cm3) | 0.3 maximum |
| European Pharmacopoeia | Acidity (ml 0.1 M Na0H solution) | 0.2 maximum |
| European Pharmacopoeia | Aldehydes (mg/kg) | 10 maximum |
| European Pharmacopoeia | Halogenated Compounds (mg/kg) | 30 maximum |
| European Pharmacopoeia | Sugars | Negative |
| European Pharmacopoeia | Chlorides (mg/kg) | 10 maximum |
| E422 Heating Test | Acroleine, Glucose, Ammonium compounds | Negative |
| European Pharmacopoeia | Assay (%) | 99.5 minimum |
| ICP-MS | Arsenic (mg/kg) | 0.1 maximum |
| ICP-MS | Mercury (mg/kg) | 0.1 maximum |
| ICP-MS | Cadmium (mg/kg) | 0.1 maximum |
| ICP-MS | Lead (mg/kg) | 0.01 maximum |
| European Pharmacopoeia | Sulphated Ash | 0.1 maximum |
| European Pharmacopoeia | Impurity A and related substances % | 0.1 maximum |
| GC/MS | Butanetriols | 0.2 maximum |
| E422 | Acroleine | Complies |
| Calculated as butyric acid | Fatty Acids and Esters (%) | 0.1 maximum |
| GC/MS | 3-MCPD (mg/kg) | 0.1 maximum |