# Photoprotection Efficacy With Sunscreen Formulas Containing the Cyclic Merocyanine Long-UVA Absorber MCE, Under Real Sun Exposure

> **NCT04865055** · NA · UNKNOWN · sponsor: **L'Oreal** · enrollment: 50 (estimated)

## Conditions studied

- Real Life Pigmentation

## Interventions

- **OTHER:** cyclic merocyanine
- **OTHER:** placebo

## Key facts

- **NCT ID:** NCT04865055
- **Lead sponsor:** L'Oreal
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-04-29
- **Primary completion:** 2021-04-29
- **Final completion:** 2021-04-29
- **Target enrollment:** 50 (ESTIMATED)
- **Last updated:** 2021-04-29


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04865055

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04865055, "Photoprotection Efficacy With Sunscreen Formulas Containing the Cyclic Merocyanine Long-UVA Absorber MCE, Under Real Sun Exposure". Retrieved via AI Analytics 2026-05-24 from https://api.ai-analytics.org/clinical/NCT04865055. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*