Skin CarotenoidsNCT07513597
Assessment of the Effects of a Daily Supplement 4Life Transfer Factor Vista Containing AREDS2 Formula on Skin Carotenoid Levels Using a Non-invasive Detection
A study testing Dietary Supplement in people with Skin Carotenoids, run by 4Life Research, LLC at 1 site in United States.
Trial summary
The goal of the clinical study is to evaluate the impact of daily use of a dietary supplement TF Vista containing AREDS2 formula ingredients, astaxanthin (Haematococcus pluvialis) microalgae, bilberry (Vaccinium myrtillus) fruit powder and black currant (Ribes nigrum) fruit powder organic on skin carotenoid levels… Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Skin Carotenoids
- What is being tested?
- Dietary Supplement
- Type of treatment
- Vaccines, Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 24 participants
- Where
- 1 siteUnited States
- Study dates
- 16 Oct 2025to 14 Feb 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Healthy subjects ≥ 18 years of age. Committed to maintain the same eating, exercise, and other lifestyle routines for the whole duration of the study.
Who cannot join
- • Pregnant and/or lactating women or planning to become pregnant in the following 12 weeks.
- Participants were not allowed to participate if they have a known allergy or adverse reaction to any of the ingredients in the study product.
- Participants were not allowed to participate if they have used AREDS2 formula products over the past 6 months.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Assessment of the Effects of a Daily Supplement 4Life Transfer Factor Vista Containing the AREDS2 Formula on Skin Carotenoid Levels Using a Non-Invasive Method
The goal of the clinical study is to evaluate the impact of daily use of a dietary supplement TF Vista containing AREDS2 formula ingredients, astaxanthin (Haematococcus pluvialis) microalgae, bilberry (Vaccinium myrtillus) fruit powder and black currant (Ribes nigrum) fruit powder organic on skin carotenoid levels over an 8-week period for a Cohort 1(n= 20 participants) and 12 weeks for a Cohort 2 (n= 4 participants). Results will be compared using two devices - the Veggie Meter and the Samsung Watch - both of which utilize reflection spectroscopy technology. For Cohort 2 (n = 4 participants), in addition to assessing skin carotenoid levels, the study will also evaluate changes in macular pigment optical density (MPOD) before and after supplementation.
- Conditions
- Skin Carotenoids
- Being tested
- Dietary Supplement
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Dietary SupplementOther
Study product 4Life TF Vista contains Tri Factor (bovine colostrum and egg yolk), bilberry (Vaccinium myrtillus) fruit powder, black currant (Ribes Nigrum) powder, lutein, zeaxanthin (Tagetes erecta), vitamin C, vitamin A, vitamin E, zinc, and copper.
| Study group | Role | What they receive |
|---|---|---|
| 4lLife TF Vista | Experimental | Participants were supplied with two bottles of the study product (for Cohort-1) and three bottles (for Cohort-2) labeled with the participant number during the study. They were required to take the product consisting of 4 capsules per day, taken with 8 oz. of fluid and preferably with a meal. Receives: Other: Dietary Supplement |
What is being measured
The primary outcome is the main question the study is designed to answer.
Skin Carotenoid Levels
Skin carotenoid levels measured via a portable Veggie Meter, Longevity Link Corp. device using reflection spectroscopy on a participant's fingerprint.
Measured: From enrollment to the end of treatment at 8 weeks for Cohort-1 and 12 weeks for Cohort-2
Secondary outcomes (1)
Antioxidant Levels
Antioxidant levels assessed by a Samsung Watch device via skin absorption spectra. The bioactive sensor measures reflected light after emitting LED light. The test requires the participant to press the thumb on the sensor for a few seconds to get a reading.
Measured: From enrollment to the end of treatment at 8 weeks for Cohort-1 and 12 weeks for Cohort-2.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Apr 2026
- Study start16 Oct 2025
- Primary completion17 Dec 2025
- Study completion14 Feb 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Skin CarotenoidsStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 24 participants (actual)
Sponsor and investigators
- Lead sponsor
- 4Life Research, LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- David Vollmer, Principal investigator, 4Life Research
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07513597
- Sponsor's protocol ID
- 4LIFE2026-001
- Status last verified
- Mar 2026
- First submitted
- 31 Mar 2026
- Last updated
- 7 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 7 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Assessment of the Effects of a Daily Supplement 4Life Transfer Factor Vista Containing the AREDS2 Formula on Skin Carotenoid Levels Using a Non-Invasive Method
- ClinicalTrials.gov ID
- NCT07513597
- Acronym / sponsor ID
- 4LIFE2026-001
- Conditions
- Skin Carotenoids
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 24 participants (actual)
- Lead sponsor
- 4Life Research, LLCIndustry (pharma, biotech, devices)
- Study start
- 16 Oct 2025 (actual)
- Primary completion
- 17 Dec 2025 (actual)
- Study completion
- 14 Feb 2026 (actual)
- First posted
- 7 Apr 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of the clinical study is to evaluate the impact of daily use of a dietary supplement TF Vista containing AREDS2 formula ingredients, astaxanthin (Haematococcus pluvialis) microalgae, bilberry (Vaccinium myrtillus) fruit powder and black currant (Ribes nigrum) fruit powder organic on skin carotenoid levels over an 8-week period for a Cohort 1(n= 20 participants) and 12 weeks for a Cohort 2 (n= 4 participants). Results will be compared using two devices - the Veggie Meter and the Samsung Watch - both of which utilize reflection spectroscopy technology. For Cohort 2 (n = 4 participants), in addition to assessing skin carotenoid levels, the study will also evaluate changes in macular pigment optical density (MPOD) before and after supplementation.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| 4lLife TF Vista | Experimental | Other: Dietary SupplementParticipants were supplied with two bottles of the study product (for Cohort-1) and three bottles (for Cohort-2) labeled with the participant number during the study. They were required to take the product consisting of 4 capsules per day, taken with 8 oz. of fluid and preferably with a meal. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Healthy subjects ≥ 18 years of age. Committed to maintain the same eating, exercise, and other lifestyle routines for the whole duration of the study.
Key exclusion criteria (3 listed)
- • Pregnant and/or lactating women or planning to become pregnant in the following 12 weeks.
- Participants were not allowed to participate if they have a known allergy or adverse reaction to any of the ingredients in the study product.
- Participants were not allowed to participate if they have used AREDS2 formula products over the past 6 months.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Dietary SupplementStudy product 4Life TF Vista contains Tri Factor (bovine colostrum and egg yolk), bilberry (Vaccinium myrtillus) fruit powder, black currant (Ribes Nigrum) powder, lutein, zeaxanthin (Tagetes erecta), vitamin C, vitamin A, vitamin E, zinc, and copper. | Other | 4lLife TF Vista |
Primary outcome
Skin Carotenoid Levels
Time frame: From enrollment to the end of treatment at 8 weeks for Cohort-1 and 12 weeks for Cohort-2
Skin carotenoid levels measured via a portable Veggie Meter, Longevity Link Corp. device using reflection spectroscopy on a participant's fingerprint.
1 secondary outcome
Antioxidant Levels
Time frame: From enrollment to the end of treatment at 8 weeks for Cohort-1 and 12 weeks for Cohort-2.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Apr 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
David Vollmer principal investigator
4Life Research
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Dietary Supplement in people with Skin Carotenoids, run by 4Life Research, LLC at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 7 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Skin Carotenoid Levels (time frame: From enrollment to the end of treatment at 8 weeks for Cohort-1 and 12 weeks for Cohort-2). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Apr 2026.