Journal Abbreviation: PROTEIN PEPTIDE LETT
Journal ISSN: 0929-8665
| Year | Impact Factor (IF) | Total Articles | Total Cites |
| 2024 (2025 update) | 1.1 | - | 2301 |
| 2023 | 1.0 | - | - |
| 2022 | 1.6 | - | 2500 |
| 2021 | 1.927 | - | 2538 |
| 2020 | 1.890 | 128 | 2640 |
| 2019 | 1.156 | 91 | 1995 |
| 2018 | 1.168 | 128 | 1956 |
| 2017 | 1.039 | 134 | 1855 |
| 2016 | 0.964 | 128 | 1818 |
| 2015 | 1.069 | 129 | 1803 |
| 2014 | 1.068 | 148 | 1683 |
| 2013 | 1.735 | 157 | 1936 |
| 2012 | 1.994 | 168 | 2058 |
| 2011 | 1.942 | 153 | 1787 |