SPF test for cosmetic products in vivo, UVA in vivo test. Water resistance test, sandproof for SPF, anti-sand test, photoallergy test, phototoxicity test, UVA testing, ISO, FDA Guidelines

Cosmetics and household chemicals testing laboratory
SPF, UVA, photoallergy, phototoxicity
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SPF test - sunscreen cosmetics testing

The SPF test is essential for evaluating the effectiveness of sunscreen products in protecting the skin from UVB radiation. It ensures that the product meets safety standards and provides the claimed level of sun protection. We perform UV tests:

  • SPF in vivo (SPF 6, SPF 10, SPF 15, SPF 20, SPF 25, SPF 30, SPF 50, SPF 50+)
  • UVA in vivo
  • UVA in vitro, critical wavelength, UVA:UVB ratio
  • SWEAT RESISTANCE TEST
  • ANTI-SAND test, SANDPROOF for SPF
  • effectiveness of removing SPF products
  • WR – Water Resistance
  • VWR – Very Water Resistance
  • photoallergy test
  • phototoxicity test

The tests are performed in accordance with the following standards: EN ISO 23675 (DOUBLE PLATE), EN ISO 24442, EN ISO 24443, EN ISO 24444 and FDA Guidelines.

UVA and SPF tests deadline:

  • UVA in vitro- results in 10 days
  • SPF in vivo- results up to 10 days

Safe sun protection - SPF test and UVAPF test for cosmetic

In order to declare that a cosmetic protects against UV radiation, two factors must be tested:

  • SPF (Sun Protection Factor) – for UVB radiation
  • UVAPF (UVA Protection Factor) – for UVA radiation

The SPF factor should be given as a numerical value and an effectiveness category:

  • 6,10 – low (obtained value in the test = 6 – 14,9)
  • 15,25 – mean (obtained value in the test = 15 – 29,9)
  • 30,50 – high (obtained value in the test = 30 – 59,9)
  • 50+ very high (obtained value in the test = 60 ≤ )
The UVAPF factor should be at least 1/3 of the SPF value. This parameter is referred to as the UVA:UVB ratio.
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Water Resistance and Very Water Resistance tests

Sunscreen is more valuable when it is waterproof.

The method for determining the water resistance of a sunscreen cosmetic – Water Resistance (WR) – is based on comparing the sun protection factor of the product after two 20-minute water baths at 29 ± 2°C to the sun protection factor obtained before immersion in water.

For cosmetics intended for children, we use a method to determine the high water resistance of the cosmetic – Very Water Resistance (VWR). It differs in that the high water resistance test uses not 2 but 4 baths.

The study must meet appropriate statistical criteria. The SPF value after bathing cannot be less than a specified percentage of the average SPF value before exposure.

In order to ensure reliable test results, we always use reference material (reference product) in the above methods.

Commission Recommendation of 22 September 2006 on the effectiveness of sunscreen products and related claims (Official Journal of the European Union)

EpiDermLab Laboratorium badawcze s.c., laboratory address: Poland, 30-613 Kraków, ul. Łowienicka 14, phone: +48 662 178 533, mail: biuro@epidermlab.pl, VAT-ID: PL9452271009