Efficacy Testing of Hibiscus Sabdariffa Extract and Collagen Products

Study Overview
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Brief Summary
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To assess Hibiscus sabdariffa extract and collagen products on skin condition improvement

Official Title
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Efficacy Testing of Hibiscus Sabdariffa Extract and Collagen Products

Conditions
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Skin Condition

Intervention / Treatment
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* Dietary Supplement: Placebo sachet
* Dietary Supplement: Hibiscus sabdariffa extract and collagen products


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy adults aged above 20 years old Exclusion Criteria: Subject who is not willing to participate in this study. Patients with diseases of the skin, liver, kidney. Subjects who have known cosmetic, drug or food allergies, difficulty in digestive tract absorption or disorder. Female who is pregnant or nursing or planning to become pregnant during the course of the study. Received facial laser therapy, chemical peeling or UV overexposure (> 3 hr/week) in the past 4 weeks. Constant drug use Students who are currently taking courses taught by the principal investigator of this trial.

Ages Eligible for Study
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Minimum Age: 20 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: Placebo sachet<br> | Dietary Supplement: Placebo sachet<br>* Consume 1 sachet daily<br>|
| Experimental: Hibiscus sabdariffa extract and collagen products<br> | Dietary Supplement: Hibiscus sabdariffa extract and collagen products<br>* Consume 1 sachet daily<br>* Other names: SPRING Collagen Powder;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The change of skin collagen density | DermaLab® Series SkinLab Combo was utilized to measure skin pores. Units: arbitrary units | Week 0, week 4, week 8 | 
| The change of skin wrinkles | VISIA Complexion Analysis System was utilized to measure skin wrinkles. Units: arbitrary units | Week 0, week 4, week 8 | 
| The change of skin texture | VISIA Complexion Analysis System was utilized to measure skin texture. Units: arbitrary units | Week 0, week 4, week 8 | 
| The change of skin elasticity | SoftPlus was utilized to measure skin elasticity. Units: arbitrary units | Week 0, week 4, week 8 | 
| The change of skin moisture | Corneometer® CM825 was utilized to measure skin moisture. Units: arbitrary Corneometer® units 0-120 | Week 0, week 4, week 8 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The change of skin melanin index | Mexameter® MX18 was utilized to measure skin melanin index. Units: arbitrary units | Week 0, week 4, week 8 | 
| The change of skin L* value | Chroma Meter MM500 was utilized to measure skin L* value. Units: arbitrary units, 0-100 | Week 0, week 4, week 8 | 
| The change of transepidermal water loss (TEWL) | Tewameter® TM 300 was utilized to measure TEWL. Units: g/hm² | Week 0, week 4, week 8 | 
| The change of skin pores | VISIA Complexion Analysis System was utilized to measure skin pores. Units: arbitrary units | Week 0, week 4, week 8 | 
| The change of skin spots | VISIA Complexion Analysis System was utilized to measure skin spots. Units: arbitrary units | Week 0, week 4, week 8 |