Statement on the test results: JUNGLÜCK Sun Cream Spf 50
In 2025, Stiftung Warentest rated JUNGLÜCK Sun Cream Spf 50 as “poor” Sun Cream Spf 50 its April 2025 issue. We would like to put this result into context, explain the legal framework, and clear why we nevertheless voluntarily withdrew the product from the market at that time, even though other independent tests have shown it to be safe.
Legal Basis: What the EU Requires
In the European Union, sunscreen products may only be SPF and sold with a specific SPF if that SPF has been demonstrated SPF standardized and reproducible test methods. This requirement stems, among other things, from Commission Recommendation (2006/647/EC) on the efficacy of sunscreen products and related claims made by manufacturers. The standardized test methods ISO 24444 and ISO 24443 meet these requirements. The in vivo test method ISO 24444, which has been used almost exclusively in the EU to date, was developed by international experts and has since been regarded as the gold standard among test methods.
Our Sun Cream Spf 50 this standard: A recognized testing laboratory confirmed an SPF 50 in accordance with ISO 24444 prior to its market launch. On this basis, the product was legally permitted to be marketed as SPF 50. In particular, our product also contained a sufficient amount of mineral UV filters.
Our actions following the announcement of the test results
Even though the product Sun Cream Spf 50 all legal requirements for sale, we decided to voluntarily withdraw our Sun Cream Spf 50 from the market immediately after the test results were announced.
The reason: The testing procedure used by Stiftung Warentest serves as a key reference point for many consumers. As long as our product does not pass this test—regardless of the methodological debate—it does not meet the quality standards we set for ourselves. We want to offer products that perform well even under conditions that are relevant to the public perception.
About the testing procedure
Although the HDRS (Hybrid Diffuse Reflectance Spectroscopy) method used by Stiftung Warentest has been deemed equivalent to ISO 24444, the HDRS method remains controversial among experts. It differs methodologically from the testing standards ISO 24444 and ISO 24443, which are still considered the “gold standard” for determining the sun protection factor. In theory, the HDRS method appears to be equivalent, but in practice, variations can occur. This means that “a repeat test of a product already on the market using a different testing method may yield differing results—with a higher or lower value.” (haut.de, Experts Advise: Regardless of the ISO Method, the SPF Rating Is Reliable, May 26, 2026)
In the past, the use of the HDRS method has repeatedly led to significantly divergent results, particularly for sunscreens containing mineral UV filters (such as JUNGLÜCK Sun Cream Spf 50)—with the result that established products received negative ratings in Stiftung Warentest tests, even though their values, as determined by standardized testing methods, met legal requirements.
References to the discussion of testing methods:
A Comparison of Mineral and Organic UV Filters
Sunscreens Treat two fundamentally different filtering mechanisms, which properties in their mode of action, texture, and physical properties . A distinction is made between mineral (physical) and organic (chemical) filters. While the JUNGLÜCK Sun Cream Spf 50 , which was voluntarily withdrawn from the market in 2025, contained Sun Cream Spf 50 UV filters, the JUNGLÜCK Sun Fluid SPF 50 currently in the product range contains organic filters.
| Mineral filters | Organic filters |
|---|---|
| Actives zinc oxide and titanium dioxide physically reflect UV radiation at the skin's surface. They are considered particularly gentle on the skin, but measuring their sun protection factor is more technically challenging than with organic filters due to the distribution of the particles. Our previous sunscreen was based on this filtering principle. | Organic filter substances absorb UV radiation and convert it into heat. They enable lightweight, invisible textures and provide more reproducible measurement results in standardized testing procedures. |
New: JUNGLÜCK Sun Fluid SPF 50 with organic UV filters
JUNGLÜCK Sun Fluid SPF 50 is our latest sunscreen product. It was developed Basis filters and was tested for its protective efficacy in accordance with both ISO 24444 (UVB protection) and ISO 24443 (UVA protection) prior to its market launch and again following the Stiftung Warentest report.
In line with our commitment to transparency, we are providing the results of these independent laboratory tests below:
Test results for Sonnenfluid
SPF: According to ISO 24444, our sunscreen fluid achieves an SPF of 56. We therefore label it as SPF 50.
UVA protection factor: The UVA protection value must be at least one-third of the stated SPF; our sun fluid meets this requirement according to ISO 24443 (UVAPF) with a protection factor of 24
Links to the documents:
UVB: Sun Fluid_SPF50_UVB_Report
UVA: Sun Fluid_SPF50_UVA_Report
Please feel free to contact us if you have any questions.