Current sunscreen controversies: a critical review

@article{Burnett2011CurrentSC,
  title={Current sunscreen controversies: a critical review},
  author={Mark E. Burnett and Steven Q. Wang},
  journal={Photodermatology},
  year={2011},
  volume={27}
}
Background/purpose: Sunscreens are believed to be a valuable tool in providing photoprotection against the detrimental effects of UV radiation, a known carcinogen. However, a number of controversies have developed regarding their safety and efficacy. This review summarizes the relevant studies surrounding these controversies. 

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TLDR
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TLDR
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Dermal toxicity of ZnO nanoparticles: a worrying feature of sunscreen?

TLDR
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...

References

SHOWING 1-10 OF 109 REFERENCES

The relation between sun protection factor and amount of suncreen applied in vivo

TLDR
Theoretical calculations have suggested that the effective SPF is related to sunscreen quantity in an exponential way but this was not confirmed in vitro and has not been studied in vivo.

Quantity of sunscreen used by European students

Background The ability of sunscreen products to delay sun‐induced skin erythema is indicated by the sun protection factor (SPF), which is measured using an internationally agreed sunscreen thickness

Photoallergy to benzophenone.

TLDR
The cases of four individuals with photoallergy to oxybenzone in sunscreens are reported, likely that such reactions will become more commonplace since oxyben Zone is by far the most frequently used agent in modern, high sun protection factor sun screens being marketed today.

Photocontact allergy to oxybenzone: ten years of experience.

TLDR
The aims of this study were to establish the incidence of photocontact allergy to oxybenzone and its relationship with the use of other cosmetics, and to investigate the relationship between sunscreen agents and photoallergy.

The role of sunlight exposure in determining the vitamin D status of the U.K. white adult population

TLDR
This data indicates that the current circulating 25‐hydroxyvitamin D level is low enough to be protective against a range of malignancies, but not high enough to cause disease.

Distribution of sunscreens on skin.

Sunbathers' application of sunscreen is probably inadequate to obtain the sun protection factor assigned to the preparation.

TLDR
A large number of volunteers on a beach applied their own sunscreen all over the body and the amount of the applied sunscreen was on average 0.5 mg/cm2, indicating that the labelled SPF is probably considerably higher than the obtained degree of protection against sunburn.

High sun protection factor sunscreens in the suppression of actinic neoplasia.

TLDR
The regular use of sunscreens can significantly reduce cutaneous neoplasia, as indicated by its suppression of precancerous lesions.

Photocontact dermatitis

  • V. Deleo
  • Medicine
    Dermatologic therapy
  • 2004
ABSTRACT:  Photocontact dermatitis is not a common condition, but neither is it rare. Both photo‐irritant contact dermatitis (PICD) and photoallergic contact dermatitis (PACD) are seen by most

Sunscreen application by photosensitive patients is inadequate for protection

TLDR
Photosensitive patients fail to apply sunscreen in some prominently exposed sites, and use average thicknesses far less than the manufacturers' recommendation (2 mg/cm2), the level of protection is much lower than anticipated from the stated SPF of the product.
...