Frequently Asked Questions

Peptides are short chains of amino acids, the building blocks of proteins. In research settings, they are studied for their roles in signaling, regulation, and other biological pathways.

Peptides are generally shorter amino acid chains, while proteins are larger, more complex structures. Both may be studied for biological activity, structure, and pathway interactions.

DNA Longevix does not manufacture these products or independently determine their production method. Review any information supplied by the applicable third-party source.

DNA Longevix does not make an independent purity representation. Any purity information shown in source documents originates from the applicable third-party laboratory and is not independently verified by DNA Longevix.

Products are third-party dual tested in the US. DNA Longevix does not operate the testing laboratories or independently verify their reported results. COAs may be available for selected products and batches.

Documents identified by a third-party source as Certificates of Analysis may be available for selected products and batches. Availability is not guaranteed, and DNA Longevix does not independently verify those documents.

Follow the handling information provided by the applicable third-party source and your laboratory's own approved protocols. DNA Longevix does not independently establish storage requirements.

DNA Longevix does not make stability or usable-life representations. Refer to applicable source documentation and your laboratory's approved protocols.

Product stability information, when available, should be taken from the applicable third-party source documentation and evaluated under your laboratory's own protocols.

These labels describe the format identified by the third-party source. Refer to the source-provided documentation for product-specific handling information.

You can contact DNA Longevix with product requests. Availability depends on third-party sourcing and research-use compliance.

Yes, selected blends are available in the catalog. Individual compounds and blends should be reviewed by product page, category, and batch documentation.

The catalog name reflects the description supplied by the third-party source. Refer to available source documentation for production-method information. The product is listed for research use only.

Current prices are displayed by product and variant in the catalog. DNA Longevix does not use testing claims to represent or justify catalog pricing.

Contact support with the products and quantities required so availability can be confirmed. Current catalog pricing applies to all orders.

DNA Longevix ships orders from secure U.S. fulfillment channels to support reliable domestic processing and delivery.

Shipping cost depends on the order, destination, service level, and available carrier options confirmed after the request is submitted.

Carrier availability can vary by destination and order requirements. Available options are confirmed during order review and fulfillment.

Processing times depend on order volume, inventory, payment review, and fulfillment requirements. Order confirmations and updates are provided when available.

When tracking is available, shipment updates are provided through the contact information submitted with the order request.

Expedited options may be available depending on product availability, destination, carrier schedule, and fulfillment timing.

Contact support with your order details, tracking information, and photos if damage is involved. Our team can review available next steps.

Orders are packaged professionally and securely. Packaging details may vary by product format and fulfillment requirements.

Contact support as soon as possible. Address changes cannot be guaranteed once an order has entered fulfillment or shipment.

Yes. Order confirmations and related updates are sent to the email address provided with the order request when an order is processed.

Products are third-party dual tested in the US. The scope of testing varies, so review the applicable COA or laboratory documentation for any contaminant-testing information.

DNA Longevix does not ensure or independently verify peptide purity. Any purity statement in source documentation is made by the applicable third-party laboratory.

Yes. Products are third-party dual tested in the US. DNA Longevix does not operate the testing laboratories, and COA availability and content vary by product and batch.

Review the product label, order information, and any source-provided documents. DNA Longevix does not independently authenticate or verify the product.

Third-party sources control their documents and revision timing. DNA Longevix may make received documents accessible but does not guarantee availability, completeness, or update frequency.

Stop handling the product, preserve packaging and documentation, and contact support with photos, order details, and a description of the concern.

No. DNA Longevix products are not FDA-approved and are offered for research, laboratory, analytical, or in-vitro experimental use only.

No. Products sold by DNA Longevix are not for human or animal consumption and are not intended to diagnose, treat, cure, or prevent disease.

DNA Longevix is not a pharmacy, clinic, medical provider, or prescribing service. Products are sold only for legally authorized research use.

It means the product is intended only for laboratory, analytical, or in-vitro research settings and not for clinical, therapeutic, human, or animal use.

DNA Longevix maintains research-use positioning, quality documentation pathways, and customer-facing compliance language. Customers are responsible for following laws in their jurisdiction.

Contact DNA Longevix through the contact page with product, documentation, shipping, or research-use questions.