Table 6.
Twenty most frequently occurring three-way combinations of the target chemicals.
| Chemical 1 | Chemical 2 | Chemical 3 | No. of products containing this ternary combination |
|---|---|---|---|
| Methyl paraben (PB) | Ethyl paraben (PB) | 2-Phenoxyethanol (GE) | 1,059 |
| Butyl paraben (PB) | Methyl paraben (PB) | 2-Phenoxyethanol (GE) | 662 |
| Butyl paraben (PB) | Methyl paraben (PB) | Ethyl paraben (PB) | 587 |
| Linalool (NF) | Limonene (NF) | 2-Phenoxyethanol (GE) | 566 |
| Butyl paraben (PB) | Ethyl paraben (PB) | 2-Phenoxyethanol (GE) | 530 |
| Linalool (NF) | Methyl paraben (PB) | Limonene (NF) | 308 |
| Eugenol (NF) | Linalool (NF) | Limonene (NF) | 272 |
| Linalool (NF) | Methyl paraben (PB) | 2-Phenoxyethanol (GE) | 241 |
| Methyl paraben (PB) | Limonene (NF) | 2-Phenoxyethanol (GE) | 216 |
| Linalool (NF) | Methyl paraben (PB) | Ethyl paraben (PB) | 176 |
| Methyl paraben (PB) | Ethyl paraben (PB) | Limonene (NF) | 153 |
| Linalool (NF) | Ethyl paraben (PB) | 2-Phenoxyethanol (GE) | 150 |
| Ethyl paraben (PB) | Limonene (NF) | 2-Phenoxyethanol (GE) | 131 |
| Linalool (NF) | Ethyl paraben (PB) | Limonene (NF) | 123 |
| Linalool (NF) | Butyl paraben (PB) | Methyl paraben (PB) | 122 |
| Linalool (NF) | Butyl paraben (PB) | Ethyl paraben (PB) | 106 |
| Linalool (NF) | Butyl paraben (PB) | 2-Phenoxyethanol (GE) | 103 |
| Butyl paraben (PB) | Methyl paraben (PB) | Limonene (NF) | 102 |
| Eugenol (NF) | Linalool (NF) | 2-Phenoxyethanol (GE) | 95 |
| Butyl paraben (PB) | Limonene (NF) | 2-Phenoxyethanol (GE) | 91 |
| The chemical classes are as follows: methyl, ethyl, and butyl paraben comprise the parabens (PB); linalool, limonene, and eugenol comprise the natural fragrances (NF); and glycol ethers (GE) are represented by 2-phenoxyethanol. A complete list of three-way combinations is provided in Excel File Table S2. The product totals should be considered a lower bound because some of the target chemicals are not always listed explicitly on a product label. | |||