Core Viewpoint - The controversy surrounding the collagen products of Juzhi Biotechnology has intensified, with beauty blogger "Dr. Big Mouth" questioning the validity of the company's testing reports and the lack of transparency regarding the testing institutions involved [1][2]. Group 1: Company Response - Juzhi Biotechnology claims that multiple authoritative testing institutions have confirmed the presence of recombinant collagen in their products, specifically in the "Human-like Recombinant Collagen Essence" [1]. - The company asserts that the collagen content is greater than 0.1% and that the product has been sold out across various channels, countering claims of a "quiet removal" from the market [1]. Group 2: Critic's Concerns - The critic highlights four main doubts regarding the testing reports: 1. The use of different testing methods raises questions about the accuracy and consistency of results, particularly why a less precise method was used instead of a high-precision mass spectrometry method [2]. 2. The claim of 100% homology with human collagen is disputed, as the critic points out that the company's own patent indicates only 86% homology when using standard comparison methods [2]. 3. The absence of blank controls in the double biuret method testing is questioned, as it is unclear how the base components of the formula affect the results [2]. 4. The lack of names and seals from the testing institutions on the reports is criticized, suggesting that the reports lack credibility and transparency [2].
“大嘴博士”郝宇发文质疑巨子生物最新检测报告：为什么没有检测机构的名字和盖章？