Zusammenfassung
Der Nutzen von Sonnenschutzmitteln mit Lichtschutzfaktoren (LSF) jenseits 50 ist umstritten. Um eine Irreführung des Konsumenten zu vermeiden, sind mehrere Länder bereits dazu übergegangen, LSF über 50 nicht mehr auf Sonnenschutzmitteln zu deklarieren. Argumente gegen hohe LSF sind das Risiko eines unausgewogenen Schutzes, der die Gefahr von Schäden durch längerwellige ultraviolette Strahlung erhöhen könnte; Vermittlung eines falschen Sicherheitsgefühls, das zur zeitlichen Ausdehnung der Sonnenexposition verleiten könnte; gesundheitliche Risiken durch höhere Konzentration an Filtersubstanzen und die nur marginal höhere Lichtblockade. Demgegenüber steht die Erkenntnis, dass der funktionelle LSF von Sonnenschutzmitteln in der praktischen Anwendung ohnehin weit hinter dem deklarierten LSF zurückbleibt und daher der Einsatz von höheren LSF bei sensitiven Individuen und starker UV-Belastung durchaus Sinn machen könnte.
Abstract
The use of sunscreens with sun protection factors beyond 50 is controversial. In order to avoid misleading the consumer, several countries have already decided not to declare SPF beyond 50 on sunscreen products. Arguments against high SPF include the following: the risk of imbalanced protection, which could increase the risk of damage caused by longer-wave ultraviolet radiation; imparting a false sense of safety, which could lead to the extension of sun exposure times; health risks from higher concentrations of filter substances; and the only marginally higher blockade provided by high SPF sunscreens. On the other hand, it has been realized that the functional SPF of sunscreens remains far behind the declared SPF in the practical application and, therefore, the use of higher SPF in sensitive individuals and during strong UV exposure could make sense.
Literatur
Autier P (2000) Do high factor sunscreens offer protection from melanoma? West J Med 173:58
Autier P, Dore JF, Negrier S et al (1999) Sunscreen use and duration of sun exposure: a double-blind, randomized trial. J Natl Cancer Inst 91:1304–1309
Autier P, Dore JF, Reis AC et al (2000) Sunscreen use and intentional exposure to ultraviolet A and B radiation: a double blind randomized trial using personal dosimeters. Br J Cancer 83:1243–1248
Azurdia RM, Pagliaro JA, Diffey BL et al (1999) Sunscreen application by photosensitive patients is inadequate for protection. Br J Dermatol 140:255–258
Bech-Thomsen N, Wulf HC (1992) Sunbathers’ application of sunscreen is probably inadequate to obtain the sun protection factor assigned to the preparation. Photodermatol Photoimmunol Photomed 9:242–244
Bimczok R, Gers-Barlag H, Mundt C et al (2007) Influence of applied quantity of sunscreen products on the sun protection factor – a multicenter study organized by the DGK Task Force Sun Protection. Skin Pharmacol Physiol 20:57–64
Brown S, Diffey BL (1986) The effect of applied thickness on sunscreen protection: in vivo and in vitro studies. Photochem Photobiol 44:509–513
Faurschou A, Wulf HC (2007) The relation between sun protection factor and amount of suncreen applied in vivo. Br J Dermatol 156:716–719
Gil EM, Kim TH (2000) UV-induced immune suppression and sunscreen. Photodermatol Photoimmunol Photomed 16:101–110
Kim SM, Oh BH, Lee YW et al (2010) The relation between the amount of sunscreen applied and the sun protection factor in Asian skin. J Am Acad Dermatol 62:218–222
Lademann J, Schanzer S, Richter H et al (2004) Sunscreen application at the beach. J Cosmet Dermatol 3:62–68
Maipas S, Nicolopoulou-Stamati P (2015) Sun lotion chemicals as endocrine disruptors. Hormones (Athens) 14:32–46
Ou-Yang H, Stanfield J, Cole C et al (2012) High-SPF sunscreens (SPF 〉/= 70) may provide ultraviolet protection above minimal recommended levels by adequately compensating for lower sunscreen user application amounts. J Am Acad Dermatol 67:1220–1227
Russak JE, Chen T, Appa Y et al (2010) A comparison of sunburn protection of high-sun protection factor (SPF) sunscreens: SPF 85 sunscreen is significantly more protective than SPF 50. J Am Acad Dermatol 62:348–349
Stenberg C, Larko O (1985) Sunscreen application and its importance for the sun protection factor. Arch Dermatol 121:1400–1402
Stokes R, Diffey B (1997) How well are sunscreen users protected? Photodermatol Photoimmunol Photomed 13:186–188
von Thaler AK, Kamenisch Y, Berneburg M (2010) The role of ultraviolet radiation in melanomagenesis. Exp Dermatol 19:81–88
Wulf HC, Stender IM, Lock-Andersen J (1997) Sunscreens used at the beach do not protect against erythema: a new definition of SPF is proposed. Photodermatol Photoimmunol Photomed 13:129–132
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Herzinger, T. Lichtschutzfaktor 50+. Hautarzt 68, 368–370 (2017). https://doi.org/10.1007/s00105-017-3979-3
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DOI: https://doi.org/10.1007/s00105-017-3979-3