Question 1

How do I know your purity claims are real?

Accepted Answer

Every lot we sell is independently tested by Janoshik Analytical (Prague, CZ) and Freedom Diagnostics before shipping. We never self-test. Your COA includes the lab name, analyst signature, lot number, HPLC chromatogram, and MS identity confirmation. You can contact either lab directly to verify any COA we issue — the lot number will trace back to your order. Most vendors cite generic purity numbers; we attach the actual documentation. We require ≥98% HPLC across the catalog; most compounds ship at ≥99%+.

Question 2

Which labs do you use for testing?

Accepted Answer

Our primary testing laboratories are Janoshik Analytical (janoshik.com, Prague, Czech Republic) — an ISO-accredited lab widely trusted in the research peptide industry — and Freedom Diagnostics for secondary confirmation on high-demand compounds. Both labs perform HPLC purity analysis and mass spectrometry identity confirmation. Endotoxin (LAL) testing is performed on select injectable-grade SKUs. Lab names and contact information appear on every COA so you can verify independently.

Question 3

Can I see a COA before I order?

Accepted Answer

Yes. Sample COAs for our top 6 compounds (BPC-157, Semaglutide, Tirzepatide, TB-500, GHK-Cu, NAD+) are available at nexphoria.com/coa/{slug}. Each shows the HPLC purity table, MS confirmation, endotoxin result, lot number, and analyst sign-off. For other compounds, COAs ship with every order and are available on request before purchase — just contact us at research@nexphoria.com with your compound of interest.

Question 4

How fast do you actually ship?

Accepted Answer

Orders placed before 2 PM ET Monday–Friday ship the same business day. Orders placed after 2 PM or on weekends ship the next business day. Standard delivery (FedEx Ground) is 2–5 business days within the continental US. Overnight Express (FedEx Priority Overnight) delivers the next business day by 10:30 AM. You receive a tracking number by email the moment your label is generated.

Question 5

How is cold-chain maintained during shipping?

Accepted Answer

All orders ship in insulated EPS foam boxes with refrigerant gel packs rated for 48–72 hours of transit at ambient temperatures up to 90°F. Lyophilized (freeze-dried) peptides are the most stable form — brief ambient exposure during transit does not degrade them. If you order reconstituted or solution-form compounds, we upgrade automatically to overnight shipping with phase-change 4°C gel packs. We monitor transit weather patterns for heat events during summer months and hold shipments when necessary.

Question 6

Do you ship internationally?

Accepted Answer

Currently, we ship within the United States only. International shipping is not available at this time. We are working on expanding to Canada and select EU jurisdictions where research peptides can be lawfully imported. Join our email list to be notified when your country is added.

Question 7

Can I track my order?

Accepted Answer

Yes. A FedEx tracking number is emailed to you as soon as your label is generated — typically within 2 hours of your order for same-day-ship orders. You can also look up your order status at nexphoria.com/account/orders using your email address and the order session ID from your confirmation email.

Question 8

What if my order arrives damaged or warm?

Accepted Answer

Contact us within 48 hours of delivery at research@nexphoria.com with your order number and a photo of the packaging, gel packs, and vials. If the cold chain was compromised during transit or packaging was damaged in shipping, we will send a replacement at no charge or issue a full refund — your choice. We stand behind our logistics. If it was our error, we fix it without debate.

Question 9

What is your return and refund policy?

Accepted Answer

We accept returns and issue refunds for: (1) damaged or compromised shipments (within 48 hours of delivery), (2) wrong product shipped (within 7 days), (3) vials with broken seals on arrival (within 48 hours). We do not accept returns on opened vials or compounds that have been reconstituted. All sales on correctly shipped, intact compounds are final due to cold-chain and research integrity requirements. Subscriptions can be cancelled any time via your Stripe billing portal before the next billing cycle.

Question 10

What payment methods do you accept?

Accepted Answer

We accept all major credit and debit cards (Visa, Mastercard, American Express, Discover) via Stripe's secure checkout. Apple Pay and Google Pay are available on supported devices. All payment processing is handled by Stripe (PCI-DSS Level 1 certified) — Nexphoria never stores your card details. Cryptocurrency payments are not currently accepted.

Question 11

Is my payment information secure?

Accepted Answer

Yes. All transactions are processed by Stripe, which is PCI-DSS Level 1 certified — the highest level of payment security certification. Your card data never touches our servers. Our site uses TLS 1.3 encryption and is protected by Cloudflare's WAF. We do not store payment information.

Question 12

How do I store my compounds when they arrive?

Accepted Answer

Lyophilized (powder) compounds: store at −20°C (standard freezer), in a desiccated environment, protected from light. Shelf life: 24+ months. If you don't have a −20°C freezer, 4°C (standard refrigerator) works for short-term storage up to 3–6 months for most compounds. Reconstituted solutions: store at 4°C for up to 2–4 weeks depending on the compound. Do not refreeze reconstituted solutions more than once. Full storage guidance by compound is available at nexphoria.com/guides/storage.

Question 13

How do I reconstitute a lyophilized peptide?

Accepted Answer

Standard procedure: (1) Let the sealed vial warm to room temperature (~15 minutes). (2) Using a sterile syringe, inject bacteriostatic water slowly down the inside wall of the vial — do not squirt directly onto the peptide cake. (3) Gently swirl the vial in a circular motion; do not shake or vortex. (4) Allow 5–10 minutes for complete dissolution. The solution should be clear with no visible particles. Our reconstitution calculator at nexphoria.com/tools/reconstitution-calculator will calculate exactly how much BAC water to add for your target concentration.

Question 14

What is a research use only (RUO) compound?

Accepted Answer

Research Use Only means the compound is sold exclusively for in vitro and in vivo laboratory research — not for human or veterinary therapeutic use, and not for use in clinical trials without proper IND authorization. All Nexphoria compounds carry RUO designation. This is a legal classification, not a comment on quality — RUO compounds are manufactured to the same high-purity standards as analytical reference standards.

Question 15

Do you offer wholesale or bulk pricing for labs?

Accepted Answer

Yes. We offer tiered wholesale pricing for research institutions, biotech firms, and labs with recurring volume. Minimum order requirements and volume-based discounts are discussed individually. Submit a wholesale inquiry at nexphoria.com/wholesale with your institution name, estimated monthly volume, and compounds of interest. We respond within 1 business day.

Questions Researchers
Actually Ask

Purity & Testing

Shipping & Delivery

Damaged Orders & Returns

Payment & Security

Storage & Handling

Research Use & Compliance

Wholesale & Bulk

Our research team responds within 4 hours.

Questions ResearchersActually Ask