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Safety and Efficacy of Skin Cleanser Contained Roselle Extract in Acne

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified June 2008 by Thammasat University.
Recruitment status was:  Recruiting
National Research Council of Thailand
Information provided by:
Thammasat University Identifier:
First received: June 17, 2008
Last updated: NA
Last verified: June 2008
History: No changes posted
Skin cleanser for daily used is essential and one of the most common questions asked by acne patients. There are studies reported beneficial effects of cleansers in acne treatment. Extracts of plants as active ingredients in skin cleansers are increasingly popular worldwide. Roselle is a common tropical shrub. Usually, the calyces of the plant have been used to make beverages but it also used in Thai traditional medicine for several purposes including as antiseptic and astringent. The extract of roselle showed antioxidant and keratolytic effects from previous studies which fit to the pathogenesis of acne. The aims of the study is to determine the safety and efficacy of skin cleanser contained roselle extract in acne.

Condition Intervention Phase
Acne Other: skin cleanser contained Hibiscus sabdariffa extract Other: marketed skin cleanser Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Supportive Care
Official Title: Randomized Double-Blind Case Control Study of Safety and Efficacy of Skin Cleanser Contained Hibiscus Sabdariffa Extract in Acne Treatment.

Resource links provided by NLM:

Further study details as provided by Thammasat University:

Primary Outcome Measures:
  • 1. Safety evaluation: Patch test 2. Efficacy evaluation: Acne lesions counts/ acne severity grading [ Time Frame: 6 weeks ]

Secondary Outcome Measures:
  • 1. Safety evaluation: "a." Skin properties by visual and tactile features., "b." Biophysical parameters of skin. 2.Efficacy evaluation: Patient assessments. [ Time Frame: 6 weeks ]

Estimated Enrollment: 50
Study Start Date: April 2008
Estimated Study Completion Date: September 2008
Estimated Primary Completion Date: July 2008 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: 1
skin cleanser contained Hibiscus sabdariffa
Other: skin cleanser contained Hibiscus sabdariffa extract
face washing 2-3 times/day
Other Name: Roselle skin cleanser
Active Comparator: 2
marketed skin cleanser
Other: marketed skin cleanser
face washing 2-3 times/day
Other Names:
  • Clean and Clear
  • Clearasil
  • Neutrogena

Detailed Description:

Acne is one of the most common skin problems in teenagers and adolescents. Keys pathogenesis of the disease are 1.abnormal hypercornification of pilosebaceous duct,2.excess sebum production, 3.inflammation, 4.the present of Propionibacterium acnes. Treatments often include combination of topical and oral medications according to degree of acne severities. Acne medications can lead to drying and irritation of skin. Proper skin cleansing is important and can improve tolerability and efficacy of acne treatment.

Traditional medicine with longstanding used of herbal ingredients for skin problems and beauty is increasing more popular. Hibiscus sabdariffa L.(Roselle) is used as food, drink and topical formulation for skin infection in Thai traditional medicine. The extract from calyces contained polyphenolic compounds and anthocyanins that showed antioxidant and keratolytic activities. There for skin cleanser with Roselle extract might be benefit to acne by loosen comedone, reduce Propionibacterium acne and prevent keratinocyte injury.

The purposes of this study is to evaluate skin cleanser contained Roselle extract in two aspects ; 1. safety for irritation and allergic effects, 2. efficacy in acne as cleanser alone and as supportive care with others acne therapies.


Ages Eligible for Study:   12 Years to 45 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • age 12-45 yrs,both sex
  • clinical diagnosis of mild to moderately severe acne vulgaris(grade 1-3)
  • have at least 10 facial acne lesions
  • not changing any acne treatment during study period
  • able to follow up according to protocol
  • Written informed consent

Exclusion Criteria:

  • pregnant or breast feeding
  • severe acne(grade4 or nodulocystic acne)
  • treated with isotretinoin orally during the last 3 months
  • have other systemic disease or illness
  • have allergic history to Roselle
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00701480

Contact: Mali - Achariyakul, MD. 66-02-9269473
Contact: Narumol - Teeranulak, MD. 66-02-9269474

Thammasat University Recruiting
KlongLaung, Pathumtanee, Thailand, 12120
Contact: Mali - Achariyakul, MD.    66-02-9269473   
Contact: Narumon Teeranurak, MD.    66-02-9269474      
Sub-Investigator: Narumon - Teeranurak, MD.         
Sub-Investigator: Vareeporn - Dispanurat, MD.         
Sponsors and Collaborators
Thammasat University
National Research Council of Thailand
Principal Investigator: Mali - Achariyakul, MD. Thammasat University
  More Information

Responsible Party: Mali Achariyakul/Dr., Thammasat University Identifier: NCT00701480     History of Changes
Other Study ID Numbers: MTU-E-1-002/51
Study First Received: June 17, 2008
Last Updated: June 17, 2008

Keywords provided by Thammasat University:
skin cleanser
Hibiscus sabdariffa
efficacy processed this record on September 21, 2017