Psychosocial Stressors, Gut–Skin Axis and Acne Vulgaris: Understanding Constitutional Remedy Selection in Homoeopathic Practice

Background: Acne vulgaris is increasingly recognised as a condition influenced by psychosocial stress and dysregulation of the gut–skin axis. Emotional stress alters gut microbiota composition and neuro-endocrine immune responses, contributing to inflammatory acne. Homoeopathy, with its emphasis on mental state, individuality, and constitutional makeup, may offer therapeutic benefit by addressing psychophysiological contributors. Objective: To explore the interconnected roles of psychosocial stressors and gut–skin axis dysregulation in acne vulgaris, and to discuss how constitutional Homoeopathic remedy selection aligns with these mechanisms. Method: A narrative literature review was conducted using publications from dermatology, psychoneuroimmunology, gastroenterology, and Homoeopathic clinical literature (2010–2024). Theoretical synthesis was carried out linking stress response, intestinal dysbiosis, and inflammatory acne expression to individualised remedy selection principles. Results: Evidence suggests that chronic psychological stress impacts intestinal permeability and systemic inflammation, leading to acne exacerbation. Homoeopathic case analysis that integrates personality structure, stress triggers, coping mechanisms, and gastrointestinal symptoms enhances constitutional remedy accuracy. Key constitutional remedies, including Pulsatilla, Natrum muriaticum, Lycopodium, Sulphur, and Ignatia amara, demonstrated clinical relevance in bridging gut–skin and emotional dynamics. Conclusion: Understanding the mind–gut–skin axis provides a strong scientific framework supporting constitutional Homoeopathic prescribing. Future clinical studies correlating psychometric and microbiome markers with remedy response are warranted.