Questions, answered.
Everything you want to know about purity, verification, and how we document what we ship.
Every compound in the Ever Vital catalog meets or exceeds 99% purity, verified by reverse-phase High-Performance Liquid Chromatography (HPLC) with UV detection at 214 nm. That's not a marketing claim. It's a documented standard that appears on the batch-specific Certificate of Analysis included with every order. Batches that don't meet the threshold are rejected before they ship. Published research confirms that purity at this level is essential for reproducible results in receptor binding assays and cellular studies, where even trace impurities can meaningfully affect outcomes(PMID: 19549937]. You see the actual purity percentage, not a round number, not a range. The specificity is intentional.)VERIFY PMID
We use three complementary methods, because single-point testing misses things. HPLC is the primary purity tool: it separates compound components and quantifies each peak, giving us the ratio of target compound to everything else. LC-MS confirms molecular identity by verifying mass-to-charge ratio against theoretical values within ±0.5 Da. And for compounds intended for cell culture applications, endotoxin testing via Limulus Amebocyte Lysate (LAL) assay ensures bioburden is within acceptable limits. All three are performed by ISO 17025 accredited third-party laboratories, independent of our synthesis partners, which matters(PMID: 19549937, PMID: 25342275]. Every result is compiled into the Certificate of Analysis that ships with your order.)VERIFY PMID
High-Performance Liquid Chromatography separates compounds in a mixture based on how they interact with a stationary and mobile phase. For research compound verification, we use reverse-phase HPLC, compounds are separated by hydrophobicity, and a UV detector at 214 nm monitors peptide bond absorbance as they elute from the column. The resulting chromatogram shows peaks for each component. Purity is the percentage of the target compound's peak area relative to total peak area. It's quantitative, reproducible, and considered the gold standard for compound purity assessment in both academic and industry settings(PMID: 19549937]. When you receive a CoA showing "99.4% purity," that percentage came from this method, not from an internal estimate.)VERIFY PMID
Lyophilized compounds should go into a frost-free −20°C freezer as soon as they arrive. The lyophilized form is deliberately chosen for stability, peptide bonds are protected from hydrolysis and oxidation in this state. Light-sensitive compounds, particularly those containing tryptophan or tyrosine, need protection from direct light exposure; amber glass vials help with this. Keep containers sealed until you're ready to work with them, even brief moisture exposure can affect integrity. Published research indicates that properly handled lyophilized compounds at −20°C maintain stability for 24 months or longer(PMID: 15283699]. Researchers should follow institutional laboratory protocols for downstream handling. Storage requirements are also specified on your product label and CoA.)VERIFY PMID
Think of the CoA as the compound's biography, a documented record of everything that was tested and what the results showed. The key fields: batch number (your traceability ID), test date, HPLC purity percentage with chromatogram, LC-MS molecular weight confirmation (observed vs. theoretical), and endotoxin results in EU/mg. Each result sits alongside an acceptance criterion, if a result falls outside the specified range, the batch doesn't release. The CoA is signed by quality personnel confirming the compound met all specs. We recommend archiving your CoAs with laboratory records; journals increasingly require analytical characterization of research compounds in supplementary materials. If you need help interpreting what you're reading, reach out, our team is glad to walk through it.
Yes. We offer custom pricing for universities, research institutes, and organizations with ongoing compound requirements. Bulk pricing typically applies to orders exceeding standard catalog quantities, multiple vials of the same compound, or gram-scale requests. To get started, submit an inquiry through our bulk orders page with the compound name, quantity needed, and intended research application. We'll respond with a custom quotation based on current availability and synthesis schedules. Lead times for bulk orders may be longer depending on testing queues. Every bulk order ships with the same full analytical documentation as a standard order, the standard doesn't flex based on volume.
Domestic US orders are shipped via standard expedited carriers, with insulated packaging and protective cushioning to safeguard compound integrity through transit. Orders are processed within 1-2 business days, and tracking is provided when your order ships. Most domestic orders arrive within 1-3 business days. We recommend inspecting packages immediately upon delivery; if anything looks off, contact us before using the compound. International shipping is available to select countries, and customers are responsible for import compliance and applicable duties or taxes. Shipping costs are calculated at checkout based on destination and package weight.
We stand behind what we ship. Returns are accepted if compounds arrive damaged, fail to meet stated specifications, or if there was an error on our end. Quality-related returns require photographic documentation of the issue alongside the Certificate of Analysis for our review. Returns must be initiated within 14 days of delivery. Opened compounds are not eligible for return due to contamination risk. Refunds process to the original payment method within 5-7 business days of return receipt. For domestic returns, we provide prepaid labels. If your temperature indicator shows excursion, document it photographically before anything else, that record supports the fastest resolution. Our team's goal is straightforward: if something isn't right, we fix it.
Lyophilized compounds are sealed in amber glass vials under nitrogen atmosphere, amber glass for photosensitive compounds, nitrogen to prevent oxidation and moisture absorption. Rubber septa secured with aluminum crimp seals provide a clean barrier to environmental contaminants while keeping the vial accessible for laboratory use. Each vial is individually boxed with cushioning material to survive transit intact. Outer cartons add insulating and impact-resistant layers. Every layer of packaging serves a function: protect the compound from light, moisture, and physical impact. Arriving in good condition isn't luck, it's the result of deliberate packaging design.
The categories in our catalog reflect the primary research context in which each compound has been studied in published preclinical literature, not therapeutic indications. Metabolic compounds include GLP-1 analogs and mitochondrial-derived peptides studied for glucose regulation and energy metabolism(PMID: 30215696]. Healing compounds encompass cytoprotective factors investigated for extracellular matrix interactions)VERIFY PMID(PMID: 35489163]. Cognitive compounds are neuromodulatory peptides studied for synaptic plasticity)VERIFY PMID(PMID: 16445185]. GH Secretagogues are growth hormone-releasing hormone analogs characterized for pituitary receptor interactions)VERIFY PMID(PMID: 15775957]. Longevity compounds include those investigated for cellular senescence pathways)VERIFY PMID(PMID: 19619679]. Categories are starting points for research orientation, individual compounds often appear across multiple areas of published literature.)VERIFY PMID
Because claims without citations aren't claims, they're marketing copy. Every molecular mechanism, receptor target, and preclinical finding on our product pages is backed by a PubMed-indexed citation you can follow directly to the source. PMIDs link to the National Center for Biotechnology Information (NCBI) PubMed database, where the full peer-reviewed study lives. This approach aligns with how academic research actually works: you cite what you claim. It also lets you evaluate the underlying science independently, which is exactly what you should be doing before incorporating any compound into a research protocol. All PMIDs are marked pending human verification to ensure accuracy before publication. We'd rather flag uncertainty than assert false confidence.
Something still unanswered?
Our team is here for research inquiries, CoA questions, or anything else. We'd rather over-explain than leave you guessing.
Contact UsResearch Use Only: All compounds sold by Ever Vital are intended exclusively for laboratory research. Not for human or animal consumption. These products are not drugs, supplements, or food. Statements have not been evaluated by the FDA. Must be 21+ to purchase.