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OpenTrials
Completed

NCT Number: NCT05988554

Efficacy Testing of Hibiscus Sabdariffa Extract and Collagen Products

To assess Hibiscus sabdariffa extract and collagen products on skin condition improvement

Completed

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Key information

Conditions

Skin Condition Skin Diseases Skin and Connective Tissue Diseases

Age range

20 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Chia Nan University of Pharmacy ＆ Science

Tainan, Taiwan

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Placebo sachet

Dietary Supplement

Consume 1 sachet daily

Hibiscus sabdariffa extract and collagen products

Dietary Supplement

Consume 1 sachet daily

Other names: SPRING Collagen Powder

Primary outcomes

  1. The change of skin collagen density

    Time frame: Week 0, week 4, week 8

    DermaLab® Series SkinLab Combo was utilized to measure skin pores. Units: arbitrary units

  2. The change of skin wrinkles

    Time frame: Week 0, week 4, week 8

    VISIA Complexion Analysis System was utilized to measure skin wrinkles. Units: arbitrary units

  3. The change of skin texture

    Time frame: Week 0, week 4, week 8

    VISIA Complexion Analysis System was utilized to measure skin texture. Units: arbitrary units

  4. The change of skin elasticity

    Time frame: Week 0, week 4, week 8

    SoftPlus was utilized to measure skin elasticity. Units: arbitrary units

  5. The change of skin moisture

    Time frame: Week 0, week 4, week 8

    Corneometer® CM825 was utilized to measure skin moisture. Units: arbitrary Corneometer® units 0-120

Secondary outcomes

  1. The change of skin melanin index

    Time frame: Week 0, week 4, week 8

    Mexameter® MX18 was utilized to measure skin melanin index. Units: arbitrary units

  2. The change of skin L* value

    Time frame: Week 0, week 4, week 8

    Chroma Meter MM500 was utilized to measure skin L* value. Units: arbitrary units, 0-100

  3. The change of transepidermal water loss (TEWL)

    Time frame: Week 0, week 4, week 8

    Tewameter® TM 300 was utilized to measure TEWL. Units: g/hm²

  4. The change of skin pores

    Time frame: Week 0, week 4, week 8

    VISIA Complexion Analysis System was utilized to measure skin pores. Units: arbitrary units

  5. The change of skin spots

    Time frame: Week 0, week 4, week 8

    VISIA Complexion Analysis System was utilized to measure skin spots. Units: arbitrary units

Other outcomes

  1. The change of self-assessment skin condition

    Time frame: Week 0, week 4, week 8

    A self-assessment questionnaire was collected to evaluate skin condition

Sponsors and collaborators

Lead sponsor

TCI Co., Ltd.

Industry

Registry information

Important dates

Study start
2023
Primary completion
2023
Study completion
2023
First posted
Aug 14, 2023
Registry last updated
Feb 21, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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