Rigorous peer-reviews are the basis of high-quality academic publishing. Thanks to the great efforts of our reviewers, Cosmetics was able to maintain its standards for the high quality of its published papers. Thanks to the contribution of our reviewers, in 2021, the median time to first decision was 15 days and the median time to publication was 33 days. The editors would like to extend their gratitude and recognition to the following reviewers for their precious time and dedication, regardless of whether the papers they reviewed were finally published:
| Akshaya Srikanth Bhagavathula | Luigi Bennardo |
| Alberto Zafra-Goméz | Luigi Rigano |
| Aleksandra Buha Djordjevic | Luis Eduardo Díaz |
| Alessandra Semenzato | Łukasz Kucharski |
| Amjad Hussain | Łukasz Szymañski |
| Anca Maria Juncan | Magdolna Szanto |
| Andi Alijagić | Malgorzata Miastkowska |
| André Rolim Baby | Marcelo Barcellos Da Rosa |
| Anke Burmester | Marcin Cichosz |
| Anna Campanati | Marco Gambacciani |
| Anna Nowak | Maria Giovanna Buonomenna |
| Anna Ścisłowska-Czarnecka | Maria Lapteva |
| Anqi Zhang | Maria Lomova |
| Arif Luqman | Marie Lodén |
| Athanasia Varvaresou | Marijana Curcic |
| Bancha Yingngam | Mark Willems |
| Baskaran Stephen Inbaraj | Marta Lores |
| Beatrix Péter | Martine Bertrand |
| Bernard Querleux | Marzia Vasarri |
| Bernhard Zelger | Matteo Brucoli |
| Bryan Fuller | Maxim Darvin |
| Butnariu, Monica | Mayuree Tangkiatkumjai |
| Carmen Garcia-Jares | Meha Qassem |
| Carola Martínez | Michael Balls |
| Caroline Costa Moraes | Michał Otręba |
| Chang-Hun Huh | Ming Jay Deng |
| Chang-Seok Lee | Monjurul Haq |
| Chanin Sillapachaiyaporn | Muhammad Zubair |
| Chengyu Wu | Nan Ma |
| Chrysovalantis Korfitis | Nataša Hulak |
| Cinzia Citti | Nuno Neng |
| Clara Delgado-Sánchez | Ola A. Tarawneh |
| Clara Maria Della Croce | Olga Mykhailenko |
| Claudia Clelia Assunta Juliano | Olga Pozharitskaya |
| Cristiana Caliceti | Omar Mansour |
| Cyril Messaraa | Omar Sarheed |
| Dan Eduard Mihaiescu | Patrizia Falabella |
| Daniel B. Yarosh | Patryk Tarka |
| Daniel H. González Maglio | Paula Coutinho |
| Darko Modun | Pedro Alves Da Rocha Filho |
| Diana Pinto | Pelagia Glampedaki |
| Diego Sampedro | Perry Xiao |
| D.M. Copolovic | Phil June Park |
| Donatella Usai | Philippe Henri Secretan |
| Doungporn Amornlerdpison | Piera Di Martino |
| Eduardo Guzmán | Pierfrancesco Morganti |
| Ehrhardt Proksch | Piergiacomo Calzavara-Pinton |
| Elżbieta Łodyga-Chruścińska | Ping-Chung Kuo |
| Enzo Berardesca | Pollick Howard F. |
| Ernest S. Fung | Pradeep Kumar Bolla |
| Eugenio Provenzano | Raffaella Micillo |
| Eung Ho Choi | Rakkiyappan Chandran |
| Eva Krieghoff-Henning | Rathinam Raja |
| Ewelina Dondajewska | Remo Campiche |
| Florencio Jr. Arce | Robert Krueger |
| Francesca Filon | Roman J. Nowicki |
| Francesca Prignano | Ronald Marquez |
| Francisco Solano | Rossen Sedev |
| Franco Cervellati | Ryszard Amarowicz |
| Gabriela Daniels | Saad Alghamdi |
| Gaewon Nam | Sahib Zada |
| Georgios Pampalakis | Salvador Antonio Arias Santiago |
| Georgios Stamatas | Sandra Simoes |
| Gigliola Borgonovo | Sandy Skotnicki |
| Gouri Kumar Dash | Sarana Sommano |
| Grzegorz Bartosz | Sekyoo Jeong |
| Grzegorz Trybek | Sergio Faloni Andrade |
| Hajime Kojima | Shushi Nagamori |
| Hakuto Kageyama | Sirivan Athikomkulchai |
| Harris Pratsinis | Siti Nuurul Huda Mohammad Azmin |
| Helena Margarida Ribeiro | Sofia Vasconcelos-Castro |
| Hermann M. Bolt | Spyridon Papageorgiou |
| Hiroshi Takemori | Stanescu Ana Maria Alexandra |
| Hung-Chi Cheng | Stefano Dastoli |
| Hye Lim Keum | Stefano Manfredini |
| Ichiro Kurokawa | Stephen R. Klapper |
| Ilandarage Menu Neelaka Molagoda | Steven Nisticò |
| Indrė Šveikauskaitė | Sudarson Sekhar Sinha |
| Ireneusz Sowa | Sunčica Roca |
| Irmanida Batubara | Suresh Rattan |
| Ivona Elez Garofulić | Tatyana Kirichenko |
| Jacques Desbrieres | Thi Thi Nge |
| Jaime Piquero-Casals | Titus Sobisch |
| James V. Gruber | Tomasz Gizewski |
| Jennifer Gubitosa | Tomasz Kobiela |
| Jesus Ontiveros | Tomoko Maeda-Chubachi |
| Joana Loureiro | Tsung-Hua Tsai |
| Jordan T. Petkov | Valeria Villanova |
| Junseong Park | Varoon Singh |
| Justyna Gornowicz-Porowska | Verónica Mayela Rivas-Galindo |
| Kamil Wojciechowski | Veronika Khairullina |
| Kenzo Koike | Victor Infante |
| Kinga Fanni Tóth | Virendra Yadav |
| Kuan-Han Lee | Vivienne Reeve |
| Kyoung-Chan Park | Vlad Toma |
| Laura Rubio Lareu | William Rassman |
| Laurent Vandanjon | Winfried Steiling |
| Leonel Pereira | Xiaoning Zhang |
| Leszek Kubisz | Yasuko Obata |
| Loh Teng-Hern Tan | Youngsoo Kim |
| Lourdes Franco | Youssef Elamine |
| Luca Vitali | Yunhi Cho |
| Lucia Montenegro |
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