NCT07198503

Study on Carotenoid-Based Instrumental Index

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 600 (estimated)
• Sponsor: ChinaNorm · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

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

• Skin Carotenoid Status

Timeline

• Start date: 2025-09-06
• Primary completion: 2025-10-16
• Completion: 2025-10-16
• First posted: 2025-09-30
• Last updated: 2025-09-30

Locations

1 site across 1 country: China