# Study on Hypoallergenic Hair Dye

> **NCT04772482** · — · COMPLETED · sponsor: **University of Minnesota** · enrollment: 8 (actual)

## Conditions studied

- Contact Dermatitis
- Allergy; Dermatitis
- Dermatitis

## Interventions

- **DIAGNOSTIC_TEST:** Sensitivity Patch Testing

## Key facts

- **NCT ID:** NCT04772482
- **Lead sponsor:** University of Minnesota
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-04-01
- **Primary completion:** 2022-05-13
- **Final completion:** 2022-05-13
- **Target enrollment:** 8 (ACTUAL)
- **Last updated:** 2023-08-25


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04772482

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04772482, "Study on Hypoallergenic Hair Dye". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT04772482. Licensed CC0.

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