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Related Experiment Videos

Total body heliotherapy

M B Alora1, T B Fitzpatrick, C R Taylor

  • 1Department of Dermatology, Wellman Laboratories of Photomedicine, Harvard Medical School, Massachusetts General Hospital, Boston 02114, USA.

Photodermatology, Photoimmunology & Photomedicine
|June 6, 1998
PubMed
Summary
This summary is machine-generated.

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Tan-Thru bathing suits may offer a way for individuals with UV-responsive skin conditions to receive heliotherapy. These suits provide a mean Sun Protection Factor (SPF) of 4.9, allowing some UVB penetration.

Area of Science:

  • Dermatology
  • Photobiology
  • Textile Science

Background:

  • Heliotherapy, or sunlight exposure, is a known treatment for various skin conditions like psoriasis and eczema.
  • Social constraints limit full-body sun exposure, hindering heliotherapy's effectiveness for widespread dermatoses.
  • Tan-Thru bathing suits are designed for tanning but may allow UV penetration, potentially aiding dermatological treatment.

Purpose of the Study:

  • To verify the claimed Sun Protection Factor (SPF) of Tan-Thru bathing suits.
  • To determine the actual ultraviolet (UV) ray transmittance through the fabric of these suits.
  • To assess the potential of Tan-Thru suits for therapeutic heliotherapy in patients with UV-responsive skin conditions.

Main Methods:

  • Recruited ten healthy adult subjects for the investigation.

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  • Determined the minimal erythema dose (MED) for ultraviolet B (UVB) radiation on subjects' skin.
  • Measured UVB MED with and without the Tan-Thru bathing suit to calculate the effective SPF and transmittance.

    • Main Results:

    • The mean Sun Protection Factor (SPF) provided by the Tan-Thru bathing suit was found to be 4.9 (range 4.5-5.6).
    • This SPF indicates that the bathing suit allows a significant amount of UVB radiation to penetrate the fabric.
    • The results suggest the bathing suit offers approximately 89% protection, consistent with manufacturer claims of SPF 10 equivalence.

    Conclusions:

    • Tan-Thru bathing suits theoretically permit sufficient UVB penetration for potential therapeutic benefits in treating UV-responsive dermatoses.
    • The study validates that these suits can be used for socially acceptable, full-body heliotherapy.
    • Further clinical studies are warranted to confirm the efficacy of Tan-Thru suits for specific skin conditions.