Actively Recruiting
The Impact of 12 Week Retention of Nutrients on Skin and the Perception of Physical Health Status
Led by ChinaNorm · Updated on 2026-02-03
120
Participants Needed
1
Research Sites
13 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
This is a randomized, double-blind, placebo-controlled clinical trial exploring the effects of a 12-week dietary supplement regimen on skin condition and perceived overall health status. The study will involve 120 healthy Chinese adults aged 18 and above with low daily fruit and vegetable intake. Participants will be randomly assigned to one of two groups: one group will take a combination of Nu Skin's Vitamin C \& Green Tea Capsules and Multivitamin \& Mineral Capsules, while the other group will take a matching placebo. The primary goal is to assess if the supplement combination improves skin health after 12 weeks, measured through specialized facial imaging (assessing spots, redness, evenness) and probe measurements (assessing elasticity, moisture, gloss). Secondary goals include evaluating changes in participants' self-perceived health status (via quality of life, fatigue, and digestive health questionnaires), psychological resilience, memory, and exploring a new method for measuring skin carotenoid levels. This study is not intended to verify the approved health functions of the products but to explore the potential combined effects of antioxidant and nutritional supplementation on skin and general well-being.
CONDITIONS
Official Title
The Impact of 12 Week Retention of Nutrients on Skin and the Perception of Physical Health Status
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Chinese adults of Asian descent aged 18 and above
- Daily fruit and vegetable intake less than 240 grams
- Skin Carotenoid Index (S3 measurement) less than 30000
- Ability to read and understand basic Chinese and independently complete questionnaires
- Voluntary participation with signed informed consent
- Willingness to comply with all study evaluations
You will not qualify if you...
- Open facial skin lesions, visible scars, acne marks, or skin lesions on face or hand measurement areas
- Symptoms of skin disease on face or hand measurement areas
- Medical aesthetic procedures within the last 6 months
- Participation in other clinical trials involving product use within the last 3 months
- Use of health or nutritional supplements within the last 1 month
- Planning pregnancy, pregnant, or lactating
- Presence of any disease currently being treated
- Any health issues or chronic diseases affecting behavior or cognition
- Other medical reasons identified by experts that may affect study results
AI-Screening
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Trial Site Locations
Total: 1 location
1
Shanghai China-norm Quality Technical Service Co., Ltd.
Shanghai, Shanghai Municipality, China, 200072
Actively Recruiting
Research Team
Y
Yanwen Jiang
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
PREVENTION
Number of Arms
2
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