Table 5.
Twenty most frequently occurring pairs among the target chemicals.
| Chemical 1 | Chemical 2 | No. of products containing this pair |
|---|---|---|
| Methyl paraben (PB) | 2-Phenoxyethanol (GE) | 1,872 |
| Linalool (NF) | Limonene (NF) | 1,850 |
| Methyl paraben (PB) | Ethyl paraben (PB) | 1,329 |
| Ethyl paraben (PB) | 2-Phenoxyethanol (GE) | 1,081 |
| Butyl paraben (PB) | Methyl paraben (PB) | 889 |
| Linalool (NF) | 2-Phenoxyethanol (GE) | 797 |
| Limonene (NF) | 2-Phenoxyethanol (GE) | 780 |
| Butyl paraben (PB) | 2-Phenoxyethanol (GE) | 684 |
| Butyl paraben (PB) | Ethyl paraben (PB) | 595 |
| Linalool (NF) | Methyl paraben (PB) | 481 |
| Methyl paraben (PB) | Limonene (NF) | 427 |
| Eugenol (NF) | Linalool (NF) | 362 |
| Eugenol (NF) | Limonene (NF) | 302 |
| Linalool (NF) | Ethyl paraben (PB) | 179 |
| Ethyl paraben (PB) | Limonene (NF) | 155 |
| Benzophenone-3 (UV) | Methyl paraben (PB) | 140 |
| Eugenol (NF) | 2-Phenoxyethanol (GE) | 132 |
| Llinalool (NF) | Butyl paraben (PB) | 131 |
| Benzophenone-3 (UV) | 2-Phenoxyethanol (GE) | 122 |
| Butyl paraben (PB) | Limonene (NF) | 113 |
| 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) and UV filters (UV) are represented by 2-phenoxyethanol and benzophenone-3, respectively. A complete list of two-way combinations is provided in Excel File Table S1. The product totals should be considered a lower bound because some of the target chemicals are not always listed explicitly on a product label. | ||