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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Skin Carotenoids Clear all
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of a Nutrient Dense Food on the Skin CarotenoidLevels of School Age Children

NCT03146715
View directory record Official record
Conditions
Raman Spectroscopy, Children, Only
Interventions
Feeding trial
Other
Lead sponsor
Utah State University
Other
Eligibility
5 Years to 18 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated May 9, 2017 · Synced Jun 27, 2026, 3:54 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Oral Probiotics on the Shift in Gut Microbiome and Skin Carotenoid Levels

NCT04841694
View directory record Official record
Conditions
Human Microbiome
Interventions
Probiotic
Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
40 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 2, 2021 · Synced Jun 27, 2026, 3:54 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Produce Prescriptions and Veggie Meter Scores for College Food Security

NCT07511699
View directory record Official record
Conditions
Food Insecurity, Carotenoid Status, Produce Prescription
Interventions
Produce boxes
Other
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessment of the Effects of a Daily Supplement 4Life Transfer Factor Vista Containing AREDS2 Formula on Skin Carotenoid Levels Using a Non-invasive Detection

NCT07513597
View directory record Official record
Conditions
Skin Carotenoids
Interventions
Dietary Supplement
Other
Lead sponsor
4Life Research, LLC
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Sandy City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Jun 27, 2026, 3:54 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Maternal Carotenoids Across Pregnancy Study

NCT06004479
View directory record Official record
Conditions
Healthy Nutrition, Pregnancy Related
Interventions
Carotenoid Intake, Serum carotenoid concentration
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 26, 2024 · Synced Jun 27, 2026, 3:54 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Correlation Between Skin Carotenoid Levels and Previous History of Skin Cancer

NCT00836342
View directory record Official record
Conditions
Skin Cancer, Basal Cell Carcinoma, Squamous Cell Carcinoma
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years to 75 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 24, 2012 · Synced Jun 27, 2026, 3:54 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Baylor Infant and Toddler Biomarker of Nutrition Study

NCT05869760
View directory record Official record
Conditions
Healthy Nutrition, Healthy Diet
Interventions
Carotenoid Intake, Serum carotenoid concentrations
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
3 Months to 24 Months
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Jun 27, 2026, 3:54 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Carotenoids in the Skin and Immune Aging

NCT07221643
View directory record Official record
Conditions
No Condition, Skin Carotenoids and Immune-aging
Interventions
Not listed
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Redwood City, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Jun 27, 2026, 3:54 AM EDT
Completed No phase listed Observational

Feasibility of Measuring Skin Carotenoid Level in an Asthma Clinic

NCT06636396
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 9, 2024 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Mango Intake of Skin Health in Postmenopausal Women

NCT03590756
View directory record Official record
Conditions
Wrinkle, Skin Red
Interventions
16 weeks mango intake
Other
Lead sponsor
University of California, Davis
Other
Eligibility
50 Years to 70 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Oct 13, 2019 · Synced Jun 27, 2026, 3:54 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of Changes in Skin Carotenoid Scores in Medical Students Following Dietary Interventions

NCT02163928
View directory record Official record
Conditions
Health Behavior
Interventions
Food-based intervention; increased fruits and vegetables
Other
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
18 Years to 89 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Feb 4, 2020 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Lycopene-rich Juice Intervention to Reduce Inflammatory Markers Among Adults With Obesity

NCT07120035
View directory record Official record
Conditions
Inflammatory Markers
Interventions
Lycopene-rich juice
Dietary Supplement
Lead sponsor
East Carolina University
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional Results available

The Zeaxanthin and Visual Function Study

NCT00564902
View directory record Official record
Conditions
Age Related Macular Degeneration, Cognition Disorders
Interventions
3R 3'R Zeaxanthin, Lutein, Lutein and Zeaxanthin
Drug · Dietary Supplement
Lead sponsor
Chrysantis, Inc.
Industry
Eligibility
45 Years to 90 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
North Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Mar 28, 2012 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Changes in Skin Carotenoid Scores in Medical Students Following a Dietary Supplement-based Intervention

NCT02464787
View directory record Official record
Conditions
Health Behavior
Interventions
LifePak Nano
Dietary Supplement
Lead sponsor
Texas Tech University Health Sciences Center
Other
Eligibility
18 Years to 89 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Aug 13, 2020 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Carotenoid Response to the Intake of Vegetables and Fruits

NCT01403844
View directory record Official record
Conditions
Resonance Raman Spectroscopy for Dietary Carotenoid Intake
Interventions
Carotenoid Depletion, Carotenoid Repletion, Natural Repletion
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated May 19, 2020 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional

Skin and Serum Carotenoids in Preterm Infants Fed on a Formula Supplemented With Carotenoids

NCT00872664
View directory record Official record
Conditions
Retinopathy of Prematurity
Interventions
carotenoids
Dietary Supplement
Lead sponsor
University of Utah
Other
Eligibility
Up to 21 Days
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 3, 2013 · Synced Jun 27, 2026, 3:54 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Oral Supplementation of Astaxanthin on Skin Photoaging, Hydration and Elasticity

NCT05882084
View directory record Official record
Conditions
Photoaging
Interventions
Astaxanthin 6 mg daily, Placebo
Dietary Supplement
Lead sponsor
Integrative Skin Science and Research
Industry
Eligibility
30 Years to 55 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jul 24, 2023 · Synced Jun 27, 2026, 3:54 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Juice Study: Sensitivity of Skin Carotenoid Status to Detect Change in Intake

NCT03202043
View directory record Official record
Conditions
Overweight
Interventions
High dose vegetable juice, Medium dose vegetable juice, Low dose vegetable juice, Control bottled water
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated May 15, 2022 · Synced Jun 27, 2026, 3:54 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Lutein, Zeaxanthin, and Meso-Zeaxanthin Supplementation on Skin Carotenoid Concentration: A Six-Month, Placebo-Controlled Crossover Study

NCT06965426
View directory record Official record
Conditions
Macular Degenerative Disease
Interventions
Lutein, Zeaxanthin, and Meso-Zeaxanthin Supplementation
Other
Lead sponsor
Insight Eyecare Specialties, Inc. dba Vision Source Eyecare,
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 23, 2025 · Synced Jun 27, 2026, 3:54 AM EDT