What are OROS capsule products intended for?
OROS capsule products are intended strictly for research use only. They are not intended for human or animal consumption, medical use, diagnostic use, or cosmetic applications.
Compared to loose powders and bulk materials, capsule formulations provide researchers with a more convenient and standardized format that can help support consistency in handling, storage, transport, inventory management, and unit-to-unit quantity control.
How are OROS capsule products tested?
Every OROS capsule batch undergoes independent third-party testing in the United States. Our current capsule testing program includes identity verification, net content validation, heavy metals screening, microbial contamination testing, and residual solvent analysis.
We believe these five testing categories provide a comprehensive view of finished product quality by helping verify ingredient identity, labeled content, manufacturing consistency, and contaminant control.
Who performs your testing?
As of April 2026, all new capsule batches are validated through an ISO/IEC 17025-accredited laboratory. ISO 17025 accreditation is an internationally recognized quality standard that supports analytical accuracy, method validation, reproducibility, and traceability.
We believe utilizing accredited third-party laboratories provides an additional level of confidence and transparency in our quality control program.
Why don't you publish purity percentages for capsule products?
One thing we intentionally avoid is advertising “purity percentages” for finished capsule products because, scientifically speaking, purity analysis on blended capsule formulations is often misleading and not analytically representative in the same way it is for isolated raw materials.
Capsule formulations frequently contain multiple active ingredients, excipients, flow agents, and other formulation components. As a result, a traditional purity percentage does not necessarily provide meaningful information about the overall quality of the finished product.
Instead, we focus on testing methods that are directly relevant to finished capsule products, including identity verification, net content validation, heavy metals screening, microbial testing, and residual solvent analysis.
Why don't you test capsule products for endotoxins?
Endotoxin testing is generally most relevant for sterile products and materials used in applications where bacterial endotoxins are a primary quality concern. Finished capsule products are evaluated differently because they are not sterile lyophilized materials and are not intended for sterile applications.
For capsule products, we focus on testing categories that are more appropriate and meaningful for the finished dosage format: identity, net content, heavy metals, microbial contamination, and residual solvents. In our view, these tests provide a more relevant quality profile for capsules than endotoxin testing.
What are residual solvents and why do they matter?
Residual solvents are trace amounts of processing solvents that may be utilized during synthesis, extraction, purification, formulation, or manufacturing workflows. While a product may successfully pass other analytical tests, residual solvent analysis provides additional insight into manufacturing quality, purification efficiency, and post-processing controls.
Our current residual solvent screening panel includes:
Acetonitrile, Methanol, TFA, DMF, Dichloromethane, Diethyl Ether, Isopropanol/Ethanol, and THF.
For capsule products, THF screening can be particularly valuable due to the potential for solvent exposure during certain upstream manufacturing, extraction, formulation, or encapsulation-related processes.
Why do you test for microbial contamination?
Microbial testing helps verify that finished capsule products meet established microbiological quality standards. This screening evaluates overall microbial burden as well as the presence of specified organisms that may indicate poor manufacturing, handling, packaging, or storage conditions.
We believe microbial testing is an essential component of a comprehensive quality control program because it helps confirm products are manufactured and handled under controlled conditions.
Why do you test for heavy metals?
Heavy metals such as lead, arsenic, cadmium, and mercury can occur naturally within raw materials or be introduced through manufacturing and environmental processes. Heavy metal screening helps verify that these elemental impurities remain within established specifications.
We believe heavy metal testing is a critical component of finished product quality assurance and contaminant control.
What is net content testing?
Net content testing verifies that finished capsule products contain the quantity stated on the label within acceptable manufacturing tolerances. This testing helps support batch-to-batch consistency and confirms that products are filled according to established specifications.
What is identity testing?
Identity testing helps confirm that the material being analyzed matches the expected ingredient or compound. Identity verification serves as the foundation of our testing program and helps ensure that products are accurately characterized before release.
Where can I find testing results?
Current and historical testing reports can be found within our Lab Results Library. Available documentation may include lot numbers, manufacturing dates, expiration dates, Certificates of Analysis (COAs), and supporting analytical reports depending on the product and batch.
Where are your products manufactured?
OROS products are manufactured in the USA through qualified third-party manufacturing partners operating under controlled quality systems. Raw materials may be sourced domestically or internationally depending on availability, quality standards, and supplier qualification requirements.
Why do you not source your raw materials exclusively from the USA?
Many raw materials and specialty ingredients used across the broader supplement, research, and pharmaceutical supply chains are sourced internationally. Our manufacturing partners source domestically when possible; however, it is not always feasible to source 100% of raw materials exclusively from the United States.
What matters most is supplier qualification, manufacturing controls, and finished batch testing. Every OROS capsule batch is independently tested before release to support quality, consistency, and transparency.
How are capsule products shipped?
All orders are shipped from North Carolina via UPS, with your choice of Ground, 2-Day, or Express services. Orders over $150 receive free UPS 2-Day shipping. Every order includes full shipment insurance at no additional cost.
Where do you ship?
We currently ship to U.S. addresses only. We do not ship to PO Boxes, international destinations, military bases, or U.S. territories.
What payment methods do you accept?
We accept all major debit and credit cards, including American Express. HSAs and FSAs are not accepted.
After checkout, you must complete our secure Payment Authorization Form. Orders are not processed or shipped until authorization is completed. This workflow ensures PCI compliance and protects your payment data.
Do you accept returns?
All sales are final. If an issue occurs with your order, please contact support@orosresearch.com within 7 days of delivery.
How should capsule products be stored?
Store capsule products in a cool, dry environment away from direct sunlight, heat, moisture, and humidity. Keep the container tightly sealed when not in use and follow any storage instructions listed on the product label.
Looking for more answers?
Visit our Full FAQ Page for detailed information on storage, COAs, shipping, policies, and additional support.
