| Preservative | Suggested Weight (% w/w) | Tested Weight (% w/w) | Propanediol Weight (% w/w) |
| Phenoxyethanol (and) Methylparaben (and) Propylparaben (and) Ethylparaben (Microcare PM3, Thor) | 0.3–0.7 | 0.15 | 0.0, 2.0, 4.0, 6.0 |
| Phenoxyethanol (and) Ethylhexylglycerine (euxyl PE 9010, schulke) | 0.5–1.0 | 0.25 | 0.0, 2.0, 4.0, 6.0 |
| Phenoxyethanol (and)Methylisothiazolinone (Neolone PE, Dow Chemical) | 0.6 | 0.3 | 0.0, 2.0, 4.0, 6.0 |
| Phenoxyethanol (and) Caprylyl Glycol (Jeecide CAP-4 Optiphen, Jeen) | 0.5–1.5 | 0.25 | 0.0, 2.0, 4.0, 6.0 |
| Glyceryl Caprylate (and) Glyceryl Undecylenate (Lexgard Natural, Inolex) | 1.0–1.5 | 0.5 | 0.0, 2.0, 4.0, 6.0 |
| Anisic Acid (and) Fragrance (parfum) Dermosoft 688 ECO, Dr. Straetmans) | 0.2 | 0.1 | 0.0, 2.0, 4.0, 6.0 |
| Gluconolactone (and) Sodium Benzoate (Geogard Ultra, Lonza) | 1.0 | 0.5 | 0.0, 2.0, 4.0, 6.0 |