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Use of two high SPF sunscreens under actual use conditions.
To evaluate the difference in the level of sunburn (erythema) protection following a single period of natural sunlight exposure afforded by application of SPF 50+ and SPF 100+ sunscreens.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| SPF50+ | Other | SPF 50+ assigned to Left side of face SPF 100+ assigned to Right side of face |
|
| SPF100+ | Other | SPF 100+ assigned to Left side of face SPF 50+ assigned to Right side of face |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| SPF50+ | Other | Sun protection |
|
|
| Measure | Description | Time Frame |
|---|---|---|
| Side-by-side Comparison (overall difference) of Sunburn. | The side-by-side comparison utilized the following condensed two side overall difference scale: L1 = subject's left side noticeably more sunburned than right side, 0= no difference in sunburn, R1= subject's right side noticeably more sunburned than left side. The 0 outcomes were excluded from the analysis. | Day 2 |
| Measure | Description | Time Frame |
|---|---|---|
| Difference in Erythema Score Between Left and Right Sides at Day 2 | Erythema was assessed using a scale of 0 = no burn, 1 = possible burn, not clearly defined; 2 = defined redness clearly caused by UV; 3 = severe sunburn with pronounced redness; and 4 = edema and blisters | Day 2 |
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Inclusion Criteria:
Remain outdoors for at least 5 hours on Day 1 during the study with face and neck uncovered (as much as possible)
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Joshua Williams, PhD | Sponsor GmbH | Study Director |
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| ID | Term |
|---|---|
| D013473 | Sunscreening Agents |
| ID | Term |
|---|---|
| D011837 | Radiation-Protective Agents |
| D020011 | Protective Agents |
| D045505 | Physiological Effects of Drugs |
| D020228 | Pharmacologic Actions |
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| SPF100+ |
| Other |
Sun protection |
|
|
| D020164 | Chemical Actions and Uses |
| D003879 | Dermatologic Agents |
| D045506 | Therapeutic Uses |
| D003358 | Cosmetics |
| D020313 | Specialty Uses of Chemicals |