The Effect of Vitamin C Supplementation in Wound Healing: A Systematic Review of Randomized Controlled Trials

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Ana Derzi
Andressa Masson
Carla Chavarria
Caterina Paiva
Cristiane Paganoti
Daniel Abad
Daniella Audi
Dermevel Neto
Dominique Schakel
Elianet Castillo
Felipe Cordova
Fernanda Malta
Hans-Udo Richarz
Helio Grullon
Iloba Njokanma
Ivan Duarte
Jose Fermin
Karen Bedirian
Kendya Reyes
Krista Cano
Lucia Salgueiro
Mobalaji Jaiyesimi
Monaly Ribeiro
Nicol Ortega
Onyekachi Aniume
Paula Sotelo
Santiago Pastrana
Stefania Zapata
Tomas Marquez
Vanessa Lessa

Abstract

Background: Vitamin C increases the proliferation of dermal fibroblasts, this favors the collagen synthesis and wound healing. However, there is no solid evidence to support this practice. 


Main objective: This review aims to evaluate the effects of vitamin C supplementation in soft tissue wound healing.


Methods: We searched 3 databases (PubMed, Embase and Cochrane) and included randomized controlled studies until July 10th, 2024, that evaluated the effect of vitamin C administered by any route in wound healing of skin and soft tissues. We excluded traumatic injuries and burns. Risk of bias was assessed using the Cochrane risk-of-bias (RoB-1) tool. 


Results: We identified 10 relevant studies, including 599 participants. Findings were summarized qualitatively and a meta-analysis was not feasible because of significant heterogeneity of settings and outcomes between the studies. Studies that evaluated the effect of vitamin C on healing in the dental setting and on ulcers had mostly positive results, while studies on corneal tissue and hysterectomy did not show a significant effect. All articles were unicentric and small, with unclear or high risk of bias except for one low risk study.


Conclusions: The available literature studying vitamin C in wound healing is inconsistent. Relatively, few studies exist and have a small number of participants in different clinical scenarios, mainly with high or unclear risk of bias. Larger and higher quality studies are warranted. Also, this intervention is simple and has low cost. Further investigation on this topic may impact patient’s quality of life and healthcare economic burden.


 

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How to Cite
The Effect of Vitamin C Supplementation in Wound Healing: A Systematic Review of Randomized Controlled Trials. (2025). Principles and Practice of Clinical Research, 10(4). https://doi.org/10.21801/ppcrj.2024.104.2
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How to Cite

The Effect of Vitamin C Supplementation in Wound Healing: A Systematic Review of Randomized Controlled Trials. (2025). Principles and Practice of Clinical Research, 10(4). https://doi.org/10.21801/ppcrj.2024.104.2

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