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Free Radical Research

Country

United Kingdom

Universities and research institutions in United Kingdom
Media Ranking in United Kingdom

Subject Area and Category

Publisher

Informa Healthcare

SJR 2024

0.862 Q2

H-Index

142

Publication type

Journals

ISSN

10292470, 10715762

Coverage

1985-2025

Information

Homepage

How to publish in this journal

a-uchida@mail.ecc.u-tokyo.ac.jp

Scope

Free Radical Research aims to publish high-quality research papers, hypotheses and reviews in all areas in the fields of: • Free radicals and other reactive species in biological, clinical, environmental and other systems • Redox signalling • Antioxidants, including diet-derived antioxidants and other relevant aspects of human nutrition • Oxidative damage, mechanisms and measurement Manuscripts should contribute a significant advance to the field, supported by clearly-presented data and statistical analysis. Manuscripts should be as concise as possible subject to the need to present relevant background, data and methods. Reviewers are strongly encouraged to identify areas of the manuscript that could be shortened. FRR discourages papers that are purely descriptive (e.g. a catalogue of changes in antioxidant levels in a human disease or after administering a toxin to an animal). Join the conversation about this journal
Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

CategoryYearQuartile
Biochemistry1999Q2
Biochemistry2000Q2
Biochemistry2001Q2
Biochemistry2002Q2
Biochemistry2003Q2
Biochemistry2004Q2
Biochemistry2005Q2
Biochemistry2006Q2
Biochemistry2007Q2
Biochemistry2008Q2
Biochemistry2009Q2
Biochemistry2010Q2
Biochemistry2011Q2
Biochemistry2012Q2
Biochemistry2013Q2
Biochemistry2014Q2
Biochemistry2015Q2
Biochemistry2016Q2
Biochemistry2017Q2
Biochemistry2018Q2
Biochemistry2019Q2
Biochemistry2020Q2
Biochemistry2021Q2
Biochemistry2022Q2
Biochemistry2023Q2
Biochemistry2024Q2
Medicine (miscellaneous)1999Q1
Medicine (miscellaneous)2000Q1
Medicine (miscellaneous)2001Q1
Medicine (miscellaneous)2002Q1
Medicine (miscellaneous)2003Q1
Medicine (miscellaneous)2004Q1
Medicine (miscellaneous)2005Q1
Medicine (miscellaneous)2006Q1
Medicine (miscellaneous)2007Q1
Medicine (miscellaneous)2008Q1
Medicine (miscellaneous)2009Q1
Medicine (miscellaneous)2010Q1
Medicine (miscellaneous)2011Q1
Medicine (miscellaneous)2012Q1
Medicine (miscellaneous)2013Q1
Medicine (miscellaneous)2014Q1
Medicine (miscellaneous)2015Q1
Medicine (miscellaneous)2016Q1
Medicine (miscellaneous)2017Q1
Medicine (miscellaneous)2018Q2
Medicine (miscellaneous)2019Q2
Medicine (miscellaneous)2020Q2
Medicine (miscellaneous)2021Q2
Medicine (miscellaneous)2022Q2
Medicine (miscellaneous)2023Q2
Medicine (miscellaneous)2024Q2
SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

YearSJR
19990.952
20000.912
20010.989
20021.014
20031.027
20040.909
20050.877
20060.896
20071.058
20081.087
20090.921
20100.844
20110.929
20120.995
20131.111
20140.999
20151.186
20161.114
20171.044
20180.844
20190.772
20200.861
20210.756
20220.714
20230.778
20240.862
Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

YearDocuments
1999153
2000147
2001143
2002163
2003158
2004148
2005148
2006152
2007153
2008108
2009133
2010124
2011127
2012141
2013117
2014141
2015130
2016135
201788
2018126
2019110
202083
202193
202263
202338
202463
Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19992.501
Cites / Doc. (4 years)20002.761
Cites / Doc. (4 years)20012.817
Cites / Doc. (4 years)20023.266
Cites / Doc. (4 years)20033.248
Cites / Doc. (4 years)20043.075
Cites / Doc. (4 years)20052.954
Cites / Doc. (4 years)20063.070
Cites / Doc. (4 years)20073.229
Cites / Doc. (4 years)20083.248
Cites / Doc. (4 years)20093.012
Cites / Doc. (4 years)20103.154
Cites / Doc. (4 years)20112.830
Cites / Doc. (4 years)20123.364
Cites / Doc. (4 years)20133.370
Cites / Doc. (4 years)20143.361
Cites / Doc. (4 years)20153.494
Cites / Doc. (4 years)20163.357
Cites / Doc. (4 years)20173.331
Cites / Doc. (4 years)20183.121
Cites / Doc. (4 years)20193.075
Cites / Doc. (4 years)20203.647
Cites / Doc. (4 years)20214.229
Cites / Doc. (4 years)20224.136
Cites / Doc. (4 years)20233.860
Cites / Doc. (4 years)20243.755
Cites / Doc. (3 years)19992.501
Cites / Doc. (3 years)20002.747
Cites / Doc. (3 years)20012.918
Cites / Doc. (3 years)20023.194
Cites / Doc. (3 years)20033.026
Cites / Doc. (3 years)20042.918
Cites / Doc. (3 years)20052.898
Cites / Doc. (3 years)20062.932
Cites / Doc. (3 years)20073.234
Cites / Doc. (3 years)20083.221
Cites / Doc. (3 years)20092.976
Cites / Doc. (3 years)20102.690
Cites / Doc. (3 years)20113.016
Cites / Doc. (3 years)20123.482
Cites / Doc. (3 years)20133.579
Cites / Doc. (3 years)20143.205
Cites / Doc. (3 years)20153.466
Cites / Doc. (3 years)20163.433
Cites / Doc. (3 years)20173.170
Cites / Doc. (3 years)20183.071
Cites / Doc. (3 years)20192.946
Cites / Doc. (3 years)20203.802
Cites / Doc. (3 years)20214.266
Cites / Doc. (3 years)20223.815
Cites / Doc. (3 years)20233.594
Cites / Doc. (3 years)20243.835
Cites / Doc. (2 years)19992.301
Cites / Doc. (2 years)20002.642
Cites / Doc. (2 years)20012.860
Cites / Doc. (2 years)20022.779
Cites / Doc. (2 years)20032.784
Cites / Doc. (2 years)20042.838
Cites / Doc. (2 years)20052.507
Cites / Doc. (2 years)20062.787
Cites / Doc. (2 years)20073.120
Cites / Doc. (2 years)20083.072
Cites / Doc. (2 years)20092.352
Cites / Doc. (2 years)20102.797
Cites / Doc. (2 years)20113.047
Cites / Doc. (2 years)20123.705
Cites / Doc. (2 years)20133.243
Cites / Doc. (2 years)20143.233
Cites / Doc. (2 years)20153.411
Cites / Doc. (2 years)20163.343
Cites / Doc. (2 years)20173.045
Cites / Doc. (2 years)20182.848
Cites / Doc. (2 years)20192.818
Cites / Doc. (2 years)20203.775
Cites / Doc. (2 years)20213.855
Cites / Doc. (2 years)20223.290
Cites / Doc. (2 years)20233.705
Cites / Doc. (2 years)20242.931
Total Cites 
Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

CitesYearValue
Self Cites199958
Self Cites2000106
Self Cites200156
Self Cites200268
Self Cites200384
Self Cites200461
Self Cites200564
Self Cites200667
Self Cites200758
Self Cites200847
Self Cites200942
Self Cites201030
Self Cites201130
Self Cites201249
Self Cites201329
Self Cites201431
Self Cites201550
Self Cites201655
Self Cites201728
Self Cites201832
Self Cites201934
Self Cites202019
Self Cites202127
Self Cites202213
Self Cites202319
Self Cites202425
Total Cites1999853
Total Cites20001096
Total Cites20011252
Total Cites20021415
Total Cites20031371
Total Cites20041354
Total Cites20051359
Total Cites20061331
Total Cites20071449
Total Cites20081459
Total Cites20091229
Total Cites20101060
Total Cites20111101
Total Cites20121337
Total Cites20131403
Total Cites20141234
Total Cites20151383
Total Cites20161332
Total Cites20171287
Total Cites20181084
Total Cites20191028
Total Cites20201232
Total Cites20211361
Total Cites20221091
Total Cites2023859
Total Cites2024744
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

CitesYearValue
External Cites per document19992.331
External Cites per document20002.481
External Cites per document20012.788
External Cites per document20023.041
External Cites per document20032.841
External Cites per document20042.787
External Cites per document20052.761
External Cites per document20062.784
External Cites per document20073.105
External Cites per document20083.117
External Cites per document20092.874
External Cites per document20102.614
External Cites per document20112.934
External Cites per document20123.354
External Cites per document20133.505
External Cites per document20143.125
External Cites per document20153.341
External Cites per document20163.291
External Cites per document20173.101
External Cites per document20182.980
External Cites per document20192.848
External Cites per document20203.744
External Cites per document20214.182
External Cites per document20223.769
External Cites per document20233.515
External Cites per document20243.706
Cites per document19992.501
Cites per document20002.747
Cites per document20012.918
Cites per document20023.194
Cites per document20033.026
Cites per document20042.918
Cites per document20052.898
Cites per document20062.932
Cites per document20073.234
Cites per document20083.221
Cites per document20092.976
Cites per document20102.690
Cites per document20113.016
Cites per document20123.482
Cites per document20133.579
Cites per document20143.205
Cites per document20153.466
Cites per document20163.433
Cites per document20173.170
Cites per document20183.071
Cites per document20192.946
Cites per document20203.802
Cites per document20214.266
Cites per document20223.815
Cites per document20233.594
Cites per document20243.835
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
199917.65
200016.33
200113.29
200216.56
200318.99
200416.22
200522.97
200623.68
200720.92
200821.30
200922.56
201029.03
201133.07
201227.66
201317.95
201417.02
201520.00
201625.19
201725.00
201824.60
201924.55
202018.07
202118.28
202212.70
202313.16
202415.87
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

DocumentsYearValue
Non-citable documents19992
Non-citable documents20005
Non-citable documents20016
Non-citable documents20025
Non-citable documents20036
Non-citable documents20048
Non-citable documents20057
Non-citable documents20064
Non-citable documents20073
Non-citable documents20085
Non-citable documents20095
Non-citable documents20105
Non-citable documents20114
Non-citable documents20125
Non-citable documents20137
Non-citable documents20147
Non-citable documents20156
Non-citable documents20164
Non-citable documents20176
Non-citable documents20185
Non-citable documents20194
Non-citable documents20206
Non-citable documents20217
Non-citable documents20228
Non-citable documents20233
Non-citable documents20242
Citable documents1999339
Citable documents2000394
Citable documents2001423
Citable documents2002438
Citable documents2003447
Citable documents2004456
Citable documents2005462
Citable documents2006450
Citable documents2007445
Citable documents2008448
Citable documents2009408
Citable documents2010389
Citable documents2011361
Citable documents2012379
Citable documents2013385
Citable documents2014378
Citable documents2015393
Citable documents2016384
Citable documents2017400
Citable documents2018348
Citable documents2019345
Citable documents2020318
Citable documents2021312
Citable documents2022278
Citable documents2023236
Citable documents2024192
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

DocumentsYearValue
Uncited documents199985
Uncited documents2000104
Uncited documents2001103
Uncited documents200298
Uncited documents2003104
Uncited documents200498
Uncited documents2005107
Uncited documents200693
Uncited documents200765
Uncited documents200886
Uncited documents200986
Uncited documents201074
Uncited documents201175
Uncited documents201263
Uncited documents201366
Uncited documents201465
Uncited documents201577
Uncited documents201662
Uncited documents201751
Uncited documents201865
Uncited documents201979
Uncited documents202053
Uncited documents202144
Uncited documents202245
Uncited documents202352
Uncited documents202439
Cited documents1999256
Cited documents2000295
Cited documents2001326
Cited documents2002345
Cited documents2003349
Cited documents2004366
Cited documents2005362
Cited documents2006361
Cited documents2007383
Cited documents2008367
Cited documents2009327
Cited documents2010320
Cited documents2011290
Cited documents2012321
Cited documents2013326
Cited documents2014320
Cited documents2015322
Cited documents2016326
Cited documents2017355
Cited documents2018288
Cited documents2019270
Cited documents2020271
Cited documents2021275
Cited documents2022241
Cited documents2023187
Cited documents2024155
% Female Authors

Evolution of the percentage of female authors.

YearFemale Percent
199927.26
200030.96
200131.90
200236.38
200337.84
200439.34
200537.13
200635.84
200736.94
200839.82
200944.21
201039.88
201138.35
201236.85
201342.33
201439.18
201540.29
201640.84
201738.22
201842.04
201945.13
202039.39
202139.73
202242.78
202336.63
202440.30
Documents cited by public policy (Overton)

Evolution of the number of documents cited by public policy documents according to Overton database.

DocumentsYearValue
Overton199910
Overton200011
Overton200110
Overton200211
Overton200311
Overton200412
Overton200514
Overton20069
Overton20076
Overton20088
Overton20093
Overton201010
Overton20114
Overton201211
Overton20135
Overton20147
Overton20155
Overton20165
Overton20172
Overton20182
Overton20198
Overton20201
Overton20213
Overton20220
Overton20230
Overton20240
Documents related to SDGs (UN)

Evolution of the number of documents related to Sustainable Development Goals defined by United Nations. Available from 2018 onwards.

DocumentsYearValue
SDG201840
SDG201937
SDG202028
SDG202130
SDG202217
SDG202319
SDG202423
Estimated APC

It estimates the article processing charges (APCs) a journal might charge, based on its visibility, prestige, and impact as measured by the SJR. It does not reflect the actual APC, but rather a calculated approximation based on journal quality.

YearEst. APC (USD)
19993299
20003286
20013298
20023309
20033316
20043311
20053306
20063294
20073300
20083308
20093309
20103305
20113309
20123301
20133304
20143314
20153356
20163377
20173383
20183352
20193324
20203283
20213235
20223187
20233177
20243191
Estimated financial value

It represents the potential financial worth of a journal. It is obtained by multiplying the journal's Estimated APC by the total number of citable documents published over the past five years. This value reflects the hypothetical revenue a journal could generate based on its estimated publication costs and scholarly output.

YearEst. value (USD)
1999504768
2000985874
20011461235
20022004954
20032533478
20042512806
20052512759
20062533389
20072504725
20082345126
20092296562
20102214346
20112134413
20122089647
20132121318
20142154145
20152201365
20162242567
20172067004
20182078127
20191957997
20201779380
20211617342
20221513893
20231229595
20241084840
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