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This study is being conducted to confirm whether skin tape stripping methodology can identify changes in gene expression (i.e. whether different genes are turned on to make proteins) in aged skin after use of a retinoid.
This is a randomized study. Participants will be randomly assigned to either the intervention cell and receive a cleanser, a sunscreen serum, and a night cream or the control cell and receive a cleanser and a sunscreen serum to use at home for 10 weeks. Participants will be randomized and receive products at Visit 1 (Screening/Baseline) conducted at Day 0 and return to the clinical site at Day 28 for Visit 2, and at Day 71 for Visit 3.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Intervention Cell | Experimental | Investigational Night Cream plus auxiliary cleanser and sunscreen |
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| No Intervention | Active Comparator | Auxiliary cleanser and sunscreen only |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Night Cream Usage | Other | Participants will use the provided products only on their face and right upper inner arm. The auxiliary cleanser will be used twice per day (morning and evening). The auxiliary sunscreen will be used 15 minutes prior to sun exposure and reapplied after 80 minutes of sweating or swimming. The investigational night cream will be used daily in the evening/at night. |
| Measure | Description | Time Frame |
|---|---|---|
| Skin tape stripping. | The investigator will collect skin samples from subjects through a non-invasive method - tape stripping. The tape strips will be analyzed by extracting DNA collected from the epidermal skin cells then use targeted sequencing using 4M CpG sites to further analyze if certain genes (assessment of UV damage, smoking, and biological age ) are turned on or off from retinol use. Baseline samples will be compared to Day 71 samples. | Baseline (Day 0), Visit 3 (Day 71) |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Dermatology Consulting Services, PLLC | High Point | North Carolina | 27262 | United States |
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| No Night Cream Usage | Other | Participants will use the provided products only on their face and right upper inner arm. The auxiliary cleanser will be used twice per day (morning and evening). The auxiliary sunscreen will be used 15 minutes prior to sun exposure and reapplied after 80 minutes of sweating or swimming. No night cream will be used. |
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