Actively Recruiting
Study on Carotenoid-Based Instrumental Index
Led by ChinaNorm · Updated on 2025-09-30
600
Participants Needed
1
Research Sites
5 weeks
Total Duration
On this page
Sponsors
C
ChinaNorm
Lead Sponsor
N
Nu Skin Enterprises
Collaborating Sponsor
AI-Summary
What this Trial Is About
Nu Skin (China) Daily-Use\&Health Products Co.,Ltd. has developed biophotonic scanners based on Raman spectroscopy, which measures skin carotenoid levels through hand skin scanning. In this study, the new Prysm device, which adopts new technology in a lower cost and more portable form, was used to measure skin carotenoid levels in a population, and the relationships between these levels and dietary habits and lifestyle factors were analyzed. The collected data included basic demographic information such as age, gender, smoking status, use of health products or nutritional supplements, and exercise habits, as well as physiological indicators such as BMI and body fat percentage. Subjective assessments were also obtained, including questionnaires on diet, skin condition, physical health, lifestyle, psychological status, and memory performance, alongside skin image analyses capturing parameters such as ITA°, L\*, a\*, b\*, glossiness, erythema, and pigmentation.
CONDITIONS
Official Title
Study on Carotenoid-Based Instrumental Index
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Chinese individuals of Asian ethnicity aged 18 years or older
- Basic proficiency in reading and writing Chinese, sufficient to independently complete questionnaires
- Voluntary participation with signed informed consent
- Willingness to comply with all assessment requirements
You will not qualify if you...
- Presence of open facial lesions, prominent scars, or visible acne marks
- Currently planning pregnancy, pregnant, or breastfeeding
- Ongoing treatment for acute or severe medical conditions
- Significant impairments affecting cognitive or behavioral abilities
- Other medical reasons identified by experts or professionals that may interfere with the assessment results
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Shanghai China-norm Quality Technical Service Co., Ltd.
Shanghai, Shanghai Municipality, China, 200072
Actively Recruiting
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
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