U.S., April 8 -- ClinicalTrials.gov registry received information related to the study (NCT07513727) titled 'Vitamin C for Gingival Depigmentation' on March 31.

Brief Summary: The purpose of this study is to evaluate the clinical and histopathological efficacy of topical vitamin C applications using three modalities (topical gel, microneedling , and mesotherapy) in gingival depigmentation. Assessment includes clinical evaluation, CIELAB analysis via DOPI, and histopathological examination (Fontana-Masson staining).

Study Start Date: July 29, 2025

Study Type: INTERVENTIONAL

Condition: Gingival Hyperpigmentation Gingival Melanin Pigmentation

Intervention: DRUG: Topical Vitamin C ( control Arm)

Topical application of L-Ascorbic Acid ge...