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

Conditions

• Skin Carotenoids

Eligibility Criteria

Sex

ALL

Age

18 Years - N/A

Healthy Volunteers

Accepted

Interventions

• Dietary Supplement — OTHER
  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 Details

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.

Key Dates

Start date

Oct 16, 2025

Status verified

Mar 2026

Primary completion

Dec 17, 2025

Completion

Feb 14, 2026

Study Design

Enrollment

24 participants (actual)

Allocation

NA

Intervention model

SINGLE_GROUP

Primary purpose

TREATMENT

Arms

• Experimental: 4lLife TF Vista
  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.

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 ]

Locations (1)

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