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Intermediate Technical IVT

FSP

Also written as: FSP — Fitzpatrick Skin Phototype

Abbreviation for Fitzpatrick Skin Phototype, the six-category classification of skin response to UV radiation.

Full Definition

FSP is the standard abbreviation for Fitzpatrick Skin Phototype, used widely in dermatological literature, photobiology research, and cosmetic dermatology publications. It condenses the full eponymous classification name in tables, figures, and repeat references. Editors should define FSP on first use in a document and ensure consistency with Roman numeral notation (FSP I through FSP VI). The abbreviation should not be confused with other dermatology acronyms such as SPF (Sun Protection Factor).

Usage

Usage note: Always spell out on first use as 'Fitzpatrick Skin Phototype (FSP).' Do not confuse with SPF, which refers to sun protection factor in sunscreen labelling.

In Context

  • "All enrolled patients had FSP II–IV, as confirmed at the screening visit." — Clinical trial inclusion criteria
  • "Figure 2 presents mean erythema index values stratified by FSP." — Research article figure legend

Also known as

Fitzpatrick Skin Phototype Fitzpatrick Scale

Don't confuse with

SPF

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