Hair Care Habits and Frontal Fibrosing Alopecia: A Case-Control Study.

ABSTRACT:

Introduction

Frontal fibrosing alopecia (FFA) has been associated with hair cosmetic habits, yet causality and frequency-dependent effects remain uncertain. This study aimed to evaluate the association between hair care habits and FFA.

Methods

An analytical case-control study was conducted including 115 FFA patients and 112 matched controls, evaluated at the Hospital Italiano de Buenos Aires between 2015 and 2024. Participants reported current hair washing frequency, cosmetic hair practices, leave-in-product use, and sunscreen use; FFA cases also reported habits 5 years before symptom onset. Logistic regression models were performed.

Results

Decreasing hair washing frequency was associated with progressively higher odds of FFA (adjusted OR 18.7 for washing ≤1 time/wee

SUBMITTER: Ko EA 

PROVIDER: S-EPMC12707933 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature