A study of efficacy and safety of vitamin C and glutathione loaded microneedle for the treatment of post inflammatory hyperpigmentation

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

TCTR

Registry ID

TCTR20210903004

Enrollment

Registered

2021-09-03

Start date

2021-06-01

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Post inflammatory hyperpigmentation Post inflammatory hyperpigmentation Acne Vitamin C Glutathione

Interventions

350 micro millimeter length, no drug loaded microneedle patch,350 micro millimeter length, Vitamin C and Glutathione loaded microneedle patch,550 micro millimeter length, Vitamin C and Glutathione loa

Placebo Comparator No treatment,Experimental Drug,Experimental Drug

placebo,Short micro needle patch,Long micro needle patch

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Adult patients at least 3 post inflammatory hyperpigmentation

Exclusion criteria

Exclusion criteria: Previous treatment of post inflammatory hyperpigmentation with any treatment modalities within 1 week prior the study Previous used of whitening agent containning in topical cream Currently skin infection History of allergy to vitamin C and glutathione

Design outcomes

Primary

Measure	Time frame
melanin index 4 week after treatment colorimeter	—

Secondary

Measure	Time frame
luminance 4 week after treatment colorimeter	—

Countries

Thailand

Contacts

Public ContactSaranya Khunkhet

Srinakharinwirot university

tucksaranya@gmail.com022594260

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026