Precision Testing. Real Confidence.
Twin Arbor Labs is a California-based, family-operated, ISO 17025 accredited testing laboratory. We partner with supplement brands, cosmetic manufacturers, and food & beverage companies to deliver accurate, defensible third-party testing — from raw ingredient validation to finished product release. When product safety and brand integrity are on the line, we give you the data to move forward with confidence.
Our Approach
At Twin Arbor Labs, we believe accurate data is the foundation of every great product. Our analytical and microbial testing laboratories offer hundreds of validated assays — covering everything from heavy metals and microbial screening to potency, identity, and contaminant testing. As an independent third-party lab, we work for you, not your supply chain. That means unbiased results, transparent reporting, and clear written communication every step of the way — because in a regulated industry, documentation isn't just good practice, it's everything.
Our trusted partners:
Want your brand featured? Let us handle the analytics!
Every industry has its own regulatory landscape, risk profile, and testing requirements. Whether you're bringing a new supplement to market, launching a cosmetic line, or scaling a food & beverage brand, Twin Arbor Labs has the accredited testing expertise to back your claims and protect your customers. Select your industry below to explore our testing capabilities.
ISO 17025:2017 Accredited
ISO 17025 accreditation is the gold standard for testing and calibration laboratories — and it's not easy to earn. It means our methods are validated, our equipment is calibrated, our staff are qualified, and our results are defensible in regulatory and legal contexts. When you test with Twin Arbor Labs, you're backed by the most rigorous quality standard in the industry.