Vitamin & Mineral Testing in California — ISO 17025 Accredited Lab
Trusted vitamin & mineral testing services in California. Our ISO 17025 accredited labs deliver precise results with 48-hour turnaround.
ISO 17025 
48 小时出结果 
100% 保证 
快速解答
Vitamin & Mineral Testing in California is available through ISO 17025 accredited laboratories like Qalitex Labs, which operates facilities in Irvine and San Diego, California. These labs use validated analytical methods including HPLC, ICP-MS, and GC-MS to test dietary supplements, cosmetics, and food products for safety, purity, and regulatory compliance.
FDA Warning: Vitamin D Toxicity Reports Linked to Mislabeled Supplements
The FDA received adverse event reports tied to vitamin D over-fortification in supplement products, where actual potency exceeded label claims — reinforcing the need for independent potency verification.
Qalitex Laboratories provides ISO 17025 accredited vitamin & mineral testing services to brands in California and throughout the United States. Vitamins and minerals are highly regulated in dietary supplements and foods. Qalitex Laboratories provides quantitative potency testing for all major vitamins and minerals, ensuring your label claims are accurate, FDA-compliant, and defensible in audits. Our California-area clients benefit from proximity to our Southern California labs, enabling faster sample delivery and turnaround times as quick as 48 hours.
Why Choose Qalitex for Vitamin & Mineral Testing in California
Qalitex Laboratories is one of the leading ISO 17025 accredited testing labs in Southern California, with facilities in both Irvine and San Diego. Our proximity to major California shipping hubs means faster sample receipt and quicker results. We combine state-of-the-art instrumentation (HPLC, ICP-MS, GC-MS, LC-MS/MS) with experienced scientists to deliver accurate, regulatory-ready results.
Vitamins We Test
We test fat-soluble vitamins (A, D, E, K1, K2) and water-soluble vitamins (C, B1 thiamine, B2 riboflavin, B3 niacin, B5 pantothenic acid, B6 pyridoxine, B7 biotin, B9 folate, B12 cobalamin) using HPLC, UV-Vis, and microbiological assay methods.
Minerals & Trace Elements
Using ICP-MS and ICP-OES, we quantify essential minerals including calcium, magnesium, zinc, iron, copper, selenium, chromium, manganese, and iodine. Results are compared against label claims and regulatory limits (USP, EU, and national standards).
Label Claim Compliance
We help brands stay compliant with FDA label claim tolerances (USP <905> for uniformity), ensuring supplement facts panels accurately reflect nutrient content. Critical for FDA enforcement defense, retailer audits, and Amazon listing compliance.
主要检测项目与方法
适用标准
服务行业
检测流程
三个简单步骤获取结果
提交样品
将样品连同订单表格寄送至我们的尔湾或圣地亚哥实验室。
检测与分析
我们的 ISO 17025 认证科学家使用经过验证的检测方法进行分析。
收取 CoA 报告
在 48–72 小时内获得签名的合格证书。
常见问题
常见问题解答
Where can I get vitamin & mineral testing in California?
Qalitex Laboratories operates ISO 17025 accredited labs in Irvine and San Diego, California, serving clients in California and across the US. Ship your samples to us and receive results within 48–72 hours.
How much does vitamin & mineral testing cost in California?
Testing costs vary based on the specific analyses required, sample matrix, and turnaround time. Contact Qalitex Labs for a custom quote — most standard panels start at competitive rates with volume discounts available.
Is Qalitex Laboratories ISO 17025 accredited?
Yes. Qalitex Laboratories holds ISO/IEC 17025 accreditation, the international standard for testing and calibration laboratories. This ensures our methods, equipment, and quality systems meet the highest standards of accuracy and reliability.
What is your turnaround time?
Standard turnaround is 5–7 business days. Rush service with 48-hour turnaround is available for most test types. Contact us to discuss your timeline requirements.
What types of products do you test?
Qalitex tests dietary supplements (capsules, powders, gummies, liquids), cosmetics and personal care products, food and beverage items, botanical extracts, and raw materials. We serve brands, contract manufacturers, and Amazon FBA sellers.
How do I submit samples for testing?
Ship your samples to our Irvine or San Diego laboratory with a completed sample submission form. We provide prepaid shipping labels for qualifying orders. Results are delivered electronically via secure portal.
Which vitamins and minerals does Qalitex test?
Qalitex tests all major fat-soluble vitamins (A, D, E, K1, K2) and water-soluble vitamins (C, B1, B2, B3, B5, B6, B7, B9, B12) using HPLC and UV-Vis methods, plus essential minerals (calcium, magnesium, zinc, iron, selenium, chromium, and more) by ICP-MS.
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