Zinc Sunscreen Under the Microscope: Are Consumers Protected?
In a year when skin health awareness is at an all-time high, a new controversy is shaking the foundation of Australia’s sunscreen market. More than 30 zinc-based sunscreen brands are facing scrutiny after preliminary tests indicated their sun protection factor (SPF) may be far lower than advertised. The revelation has raised urgent questions about consumer safety, regulatory oversight, and the reliability of SPF claims in an industry built on trust.
The spark for this investigation came from Craig Jones, founder of MooGoo, a skin care company known for its zinc-based sunscreens. Jones’s journey began with a simple customer complaint about the texture of his company’s SPF 15 product. When Jones noticed the zinc oxide—supplied by Advance ZincTek—behaving differently in the mixing process, he decided to test the SPF levels of his higher-protection SPF 40 sunscreen as well. The results were unexpected: instead of the promised SPF 40, tests revealed an SPF of just 27.
Jones took decisive action, pulling the affected product from shelves and discarding $400,000 worth of inventory. “Sunscreen is so difficult to make, and a small change can just ruin the SPF,” he told ABC News. The incident prompted him to question whether other brands using the same zinc oxide supplier might be affected. His suspicions proved justified: further tests on products believed to use Advance ZincTek’s zinc oxide returned SPF results in the mid-20s—far below the advertised SPF 50.
Industry-Wide Implications: A Formula Shared by Many
The scope of the issue quickly expanded. Jones traced the origin of the zinc oxide to VeganicSKN, an Australian manufacturer closely tied to Advance ZincTek, with overlapping ownership and directorship. VeganicSKN’s formula is used in at least 30 sunscreen brands, many of which carry the same Australian Register of Therapeutic Goods (ARTG) number—an identifier meant to ensure transparency and traceability.
Tests commissioned on VeganicSKN products—including the popular Reef Safe SPF 50 and Surf Life Saving SPF 50 Natural Mineral Face Sheer Liquid Zinc Sunscreen—returned SPF values of 21 and 25, respectively, in preliminary trials. These findings alarmed consumer advocates and regulators alike. The Therapeutic Goods Administration (TGA), Australia’s regulatory body, acknowledged “concern about preliminary data that may indicate a sunscreen does not meet its claimed SPF” and is considering further investigation and regulatory action.
Testing Methods and Disputed Results: Who Decides What’s Safe?
The debate over the reliability of these findings centers on the nature of SPF testing. Australian regulations require that SPF tests be conducted on 10 human subjects before a product can be marketed, while the preliminary tests in question involved just three to five people. VeganicSKN’s CEO, Joseph Mizikovsky, dismissed the results, arguing that the smaller sample size and the lab’s choice of a lower target SPF could skew outcomes downward. “Depending what you set the target SPF at, it’ll change your actual result,” he said.
However, SPF testing expert Dr. Michael Traudt explained that preliminary tests, while not legally definitive, provide a valuable indication of whether a sunscreen is likely to meet its advertised protection. “In all likelihood, the results are in the low to mid 20s and you need to accept that,” Traudt told ABC News. He also noted that starting with a lower target SPF is a common safety measure to prevent burns during testing, particularly when the true protection level is in doubt.
VeganicSKN provided its own in-vivo 10-person test results, showing SPF levels above 50, but critics questioned the independence of these results. The tests were conducted at facilities owned by the same entities producing the zinc oxide, raising concerns about conflict of interest and transparency.
Nano Zinc Oxide: Innovation, Promise, and Challenge
The controversy comes at a time when the global nano zinc oxide market is booming. According to Custom Market Insights, the market is expected to grow from $0.49 billion in 2025 to $1.35 billion by 2034, driven by expanding use in cosmetics, textiles, paints, coatings, and pharmaceuticals. Nano zinc oxide—tiny particles less than 100 nanometers in diameter—offers advantages such as superior UV protection, transparency, and antimicrobial effects. These properties have made it a popular choice for modern sunscreens, promising both efficacy and a pleasant cosmetic feel.
Yet, as the MooGoo incident reveals, the complexity of manufacturing nano zinc oxide products introduces new challenges. Maintaining consistent particle size, dispersion, and purity is technologically demanding. Small variations can dramatically affect performance, and regulatory compliance for nanomaterials is stringent and costly. The market’s rapid growth has outpaced the ability of some manufacturers to guarantee product consistency, raising questions about quality control and consumer safety.
Industry players are investing heavily in research, innovation, and production capacity to address these issues. The focus is on developing enhanced grades of nano zinc oxide, improving stability and dispersibility, and ensuring high-purity formulations. But as the sunscreen saga shows, even with sophisticated technology, oversight and independent verification remain critical.
Consumer Confidence and Regulatory Response: What Happens Next?
For consumers, the immediate concern is simple: can they trust the SPF numbers printed on their sunscreen tubes? Regulators are responding. The TGA is reviewing data and considering whether to expand testing protocols, potentially shifting to more objective in vitro methods. In vivo (human) testing, while currently the international standard, is subject to variability and subjectivity; in vitro testing could provide greater consistency and reliability.
Meanwhile, the market is watching closely. The incident has exposed the vulnerability of supply chains and the importance of transparency in ingredient sourcing. Brands are reassessing their partnerships and testing protocols, aware that consumer trust is hard-won and easily lost.
As for the affected products, the investigation continues. Some manufacturers have proactively withdrawn questionable batches, while others dispute the findings. With more than 30 brands potentially implicated, the outcome could reshape the landscape of zinc sunscreen in Australia and beyond.
The zinc sunscreen controversy highlights both the promise and perils of rapid innovation in personal care. Nano zinc oxide’s rise has transformed sun protection, but the MooGoo episode reminds us that scientific rigor, regulatory oversight, and transparency must keep pace with technology. As the market grows, the challenge will be to ensure that every claim—especially those as vital as SPF—stands up to scrutiny, protecting both consumers and industry integrity.