Buy NAD+ in United States | ≥99% Purity | QSC Peptides

Why Researchers in United States Order NAD+ from QSC

QSC maintains a dedicated US Domestic Warehouse, which means your order ships domestically — no customs clearance, no import delays. No customs clearance required. Ships fully domestically within the USA.

Every vial of NAD+ is manufactured using solid-phase peptide synthesis (SPPS), verified by HPLC purity analysis and mass spectrometry, and accompanied by a published Certificate of Analysis (COA). Typical delivery to United States is 2–5 business days after order confirmation.

NAD+: Research Background

Mechanism of Action: Nicotinamide adenine dinucleotide (NAD+) is an essential coenzyme in cellular metabolism, serving as an electron carrier in oxidative phosphorylation and as a substrate for sirtuin deacetylases and PARP enzymes involved in DNA repair and gene expression.

Research Applications: Sirtuin activation research, mitochondrial bioenergetics, DNA repair pathway studies, cellular aging and senescence research, and NAD+ bioavailability studies.

Published Research: Yoshino et al. on NAD+ and aging (Cell Metabolism, 2018). Rajman et al. ‘Therapeutic Potential of NAD-Boosting Molecules’ (Cell Metabolism, 2018). PubMed: ‘NAD+ aging sirtuin’.

Storage & Reconstitution

Storage: Store lyophilized NAD+ at -20°C away from light. Highly hygroscopic — use immediately after reconstitution.

Reconstitution Protocol: Add sterile/bacteriostatic water per vial specification. Use within 24 hours of reconstitution for best stability.

Quality Verification

Every batch of QSC NAD+ undergoes a full analytical testing protocol before shipment:

• HPLC Purity Analysis — confirms ≥99% purity specification
• Mass Spectrometry (MS) — verifies molecular identity and sequence
• Impurity Profiling — identifies and quantifies any trace impurities
• Batch Traceability — every vial traceable to its published COA

Certificates of Analysis are published directly on the product page and independently verifiable via the Janoshik testing portal.

Related Research Compounds

Researchers studying NAD+ frequently also investigate: SS-31, Epitalon, FOXO4-DRI, 5-Amino-1MQ. View the full QSC catalog for complete availability from the US Domestic Warehouse.

Frequently Asked Questions

Is NAD+ legal to buy in United States?

NAD+ is sold strictly for laboratory research purposes only. It is not approved for human consumption. Researchers in United States are responsible for understanding applicable local regulations before ordering.

How long does shipping to United States take?

Orders for NAD+ shipping to United States are fulfilled from QSC’s US Domestic Warehouse. Typical delivery is 2–5 business days after order confirmation. No customs clearance required. Ships fully domestically within the USA.

How is NAD+ purity verified?

Every batch undergoes HPLC purity testing, mass spectrometry molecular verification, and impurity profiling. The Certificate of Analysis is published on the product page and verifiable via the Janoshik testing portal.

What payment methods are accepted for United States orders?

QSC accepts Bitcoin (BTC) and USDT (ERC-20) for all orders. You will receive a payment address at checkout and a confirmation email with tracking once your order ships.

What sizes of NAD+ are available for United States researchers?

QSC offers NAD+ in multiple vial concentrations and kit sizes to support different research scales. View all available options and current pricing below.