New Methodology to Evaluate Sunscreens Under Outdoor Conditions: A Double-Blind, Randomized Intra-Individual Clinical Study of a Water-Based Broad-Spectrum SPF50+ Versus SPF15 (P3) and SPF50+

[1] Lautenschlager S(2007)Photoprotection Lancet 370 528-537

[2] Wulf HC(2013)Effects of ultraviolet radiation, visible light, and infrared radiation on erythema and pigmentation: a review Photochem Photobiol Sci 12 54-64

[3] Pittelkow MR(1999)Sunscreen application by photosensitive patients is inadequate for protection Br J Dermatol 140 255-258

[4] Sklar LR(2019)Outdoor testing of the photoprotection provided by a new water-based broad-spectrum SPF50+ sunscreen product: two double-blind, split-face, randomised controlled studies in healthy adults Clin Cosmet Investig Dermatol 12 461-467

[5] Almutawa F(1987)Indoor and outdoor efficacy testing of a broad-spectrum sunscreen against ultraviolet A radiation in psoralen-sensitized subjects J Am Acad Dermatol 17 224-230

[6] Lim HW(2016)In multiple situational light settings, visual observation for skin colour assessment is comparable with colorimeter measurement Skin Res Technol 22 305-310

[7] Hamzavi I(1997)Visual assessment of human skin irritation: a sensitive and reproducible tool Contact Dermatitis 37 218-220

[8] Azurdia RM(2018)Time and place as modifiers of personal UV exposure Int J Environ Res Public Health 15 1112-910.e2

[9] Pagliaro JA(2018)SPF 100+ sunscreen is more protective against sunburn than SPF 50+ in actual use: results of a randomized, double-blind, split-face, natural sunlight exposure clinical trial Am Acad Dermatol 78 902-308

[10] Diffey BL(2017)Sun protection by beach umbrella vs sunscreen with a high sun protection factor: a randomized clinical trial JAMA Dermatol 153 304-349

[1] Lautenschlager S(2007)Photoprotection Lancet 370 528-537

[2] Wulf HC(2013)Effects of ultraviolet radiation, visible light, and infrared radiation on erythema and pigmentation: a review Photochem Photobiol Sci 12 54-64

[3] Pittelkow MR(1999)Sunscreen application by photosensitive patients is inadequate for protection Br J Dermatol 140 255-258

[4] Sklar LR(2019)Outdoor testing of the photoprotection provided by a new water-based broad-spectrum SPF50+ sunscreen product: two double-blind, split-face, randomised controlled studies in healthy adults Clin Cosmet Investig Dermatol 12 461-467

[5] Almutawa F(1987)Indoor and outdoor efficacy testing of a broad-spectrum sunscreen against ultraviolet A radiation in psoralen-sensitized subjects J Am Acad Dermatol 17 224-230

[6] Lim HW(2016)In multiple situational light settings, visual observation for skin colour assessment is comparable with colorimeter measurement Skin Res Technol 22 305-310

[7] Hamzavi I(1997)Visual assessment of human skin irritation: a sensitive and reproducible tool Contact Dermatitis 37 218-220

[8] Azurdia RM(2018)Time and place as modifiers of personal UV exposure Int J Environ Res Public Health 15 1112-910.e2

[9] Pagliaro JA(2018)SPF 100+ sunscreen is more protective against sunburn than SPF 50+ in actual use: results of a randomized, double-blind, split-face, natural sunlight exposure clinical trial Am Acad Dermatol 78 902-308

[10] Diffey BL(2017)Sun protection by beach umbrella vs sunscreen with a high sun protection factor: a randomized clinical trial JAMA Dermatol 153 304-349