Status on 10 October 2026
Live site behind a bot check; last readable capture 11 October 2025
Store Review Article
Phoenix Peptide review: the online shop of Phoenix Pharmaceuticals, a lab-reagent maker — not a vial store
phoenixpeptide.com is the website of Phoenix Pharmaceuticals, Inc., a California manufacturer of research peptides, antibodies and immunoassay kits for laboratories. It sits in comparisons of research-peptide stores because of its domain name, but what it sells and how it sells it are different from the vial stores those comparisons are about. Its live site sat behind a bot check on 9 and 10 October 2026, so this review works from the last readable archive captures, of September and October 2025.
Public materials checked 2026-10-10. Details published by third parties change; verify current information at the source before relying on it.
Status check
We could not confirm this is still trading
phoenixpeptide.com answered our automated requests on 9 and 10 October 2026 with a Cloudflare bot check, which we do not get around, and the Internet Archive's own crawler met the same wall in July 2026. The last capture we could read is from 11 October 2025, when the site was serving its catalogue. This page records the business as it appeared then.
Trading status established 2026-10-10. No trust score is published for an entity we have not confirmed.
Quick answer
Phoenix Peptide is Phoenix Pharmaceuticals, Inc. of Burlingame, California, with European offices in Germany and France. In captures of September–October 2025 it sold catalogue peptides in 100 microgram sizes — for example an amyloid-beta fragment at $120 — alongside rabbit antibodies, EIA, ELISA and RIA kits, and custom synthesis. It names its co-founders, says all production is in-house in the USA, and claims ISO 9001:2015 certification and CE marks on over 80 assay kits; we did not verify those claims. Its terms are business-to-business: invoices due in 30 days, a 20% restocking fee for orders placed in error, and replacement as the sole remedy for a quality problem.
What it is
Phoenix Pharmaceuticals, Inc.: research peptides, antibodies and assay kits
How it sells
100 µg catalogue sizes, quotes and invoices; business terms
Quick checklist before deeper review
- Do not compare this site with vial stores on price per milligram; it sells microgram reagents to laboratories.
- Check that the company named in the footer, Phoenix Pharmaceuticals, Inc., is the one you are dealing with.
- Ask for the certificate or data sheet for the specific catalogue number and lot before ordering.
- Confirm return eligibility in advance: custom, radioactive and temperature-sensitive products can be refused.
- Treat the ISO 9001 and CE claims as the company's own until checked with the issuing body.
Top-half signal table
| Checkpoint | Public signal in this pass | Why this matters |
|---|---|---|
| Trading status | Bot check on 9–10 October 2026; last readable capture 11 October 2025 | Our record is a year old and could not be refreshed |
| Who runs it | Phoenix Pharmaceuticals, Inc., Burlingame, California; offices in Germany and France | A named company with a published address |
| What it sells | Catalogue peptides in 100 µg, antibodies, EIA/ELISA/RIA kits, custom synthesis | Laboratory reagents, not consumer-sized vials |
| Reference price | Amyloid β A4 protein (693–704), 100 µg: $120 (September 2025) | Priced per microgram quantity, as research suppliers do |
| Quality claims | ISO 9001:2015; CE mark on over 80 assay kits; purity "up to >95%" | Stated by the company; not verified here |
| Terms | Invoice in 30 days; 20% restocking fee; replacement as sole remedy | Business-to-business terms, not consumer ones |
Who is behind phoenixpeptide.com
Every page captured in 2025 carries the copyright line of Phoenix Pharmaceuticals, Inc. The company gives its address as 330 Beach Road, Burlingame, California, a US telephone and fax number, and two European offices: Phoenix Europe GmbH in Germany, described as its European headquarters, and Phoenix France S.A.S. Its about page says it is a team of about 20 people, has made peptides since 1976 and does all production in-house in the USA. The homepage names its co-founders, Eng Tau and Dr Jaw-Kang Chang, and says Dr Chang still oversees production.
That makes it a different kind of business from most entries in a comparison of research-peptide stores. It is a manufacturer selling to laboratories, under its own company name, with a street address and staff it names, rather than an online shop reselling vials from an unnamed producer.
What it sells, as captured in September–October 2025
The catalogue is organised the way a reagent supplier's is: peptides, labelled peptides, peptide libraries, polyclonal antibodies and labelled antibodies, magnetic beads, and enzyme and radio-immunoassay kits with their buffers and supplies, plus services for custom peptide synthesis, antibody production, isotope labelling and measuring peptide levels in samples. Catalogue peptides are sold in microgram quantities. On 13 September 2025, an amyloid beta A4 protein fragment (693–704), catalogue 066-09, was $120 for 100 µg, and a prokineticin-2 fragment, catalogue 023-88, was $417 for 100 µg.
The frequently asked questions are about laboratory work — storing plasma samples, extracting peptides before an assay, how the rabbit antibodies are raised, the activity of iodine-125 tracers — not about vials, shipping speed or discounts. The company says its antibodies are raised in-house in California and that its catalogue peptides are synthesised in the USA.
On quality, the about page promises purity "up to >95%", and a separate page says the company holds ISO 9001:2015 certification and that more than 80 of its enzyme immunoassay kits carry a CE mark. We did not check those certifications with the bodies that issue them, and the pages we read did not show per-lot certificates of analysis for catalogue peptides.
What its terms said
The terms of use captured on 13 September 2025 are written as a purchase contract between the company and a buying organisation. The points that matter:
- Ordering: by phone, email or online; the terms say placing an order accepts them.
- Payment: due within 30 days of a proper invoice, for example one raised against a purchase order, with a service charge of 1.5% a month on overdue invoices.
- Inspection: the buyer has a reasonable time, up to 30 days, to inspect goods, and needs written authorisation before rejecting them.
- Returns: the company may refuse returns of radioactive, custom-made and temperature-sensitive products, and may charge a 20% restocking fee on products ordered in error.
- Quality: products are warranted to be of the stated quality at shipment; if a problem arises, the sole obligation is replacement at the original price, for products in their original packaging.
- Use: all products are for research use only and not for human consumption.
Why this page was rewritten
The earlier version was generated from a template shared with every store review. It called Phoenix Peptide an RUO storefront that "appears in RUO comparison searches" and told readers to check its certificates of analysis like any vial store's. That missed the main fact: the domain belongs to a long-standing reagent manufacturer that sells to laboratories on business terms. This version records what the company publishes about itself, dated to the captures it came from, because the live site could not be read on the day.
Limits of this page
- The live site showed a bot check on 9 and 10 October 2026. Everything else comes from Internet Archive captures of 2 August to 11 October 2025 and may have changed since.
- We did not verify the ISO 9001:2015 certificate or the CE marks with their issuing bodies.
- We did not buy, receive or test any product, and we do not test products of any seller.
- Everything here is research-context information about a market. Nothing on this page is guidance about the use of any compound in humans or animals.
- Medibact is not affiliated with Phoenix Pharmaceuticals, Inc. Names are used only to identify the business described.
Related internal pages
FAQ
Who runs Phoenix Peptide?
phoenixpeptide.com is the website of Phoenix Pharmaceuticals, Inc., a research-reagent manufacturer at 330 Beach Road, Burlingame, California, with offices in Germany and France, according to its own pages captured in 2025.
Is Phoenix Peptide still in business?
Its live site showed a Cloudflare bot check on 9 and 10 October 2026, which we do not get around, so we could not look. The last readable capture, from 11 October 2025, shows the site serving its catalogue. We record the status as unverified.
What does Phoenix Peptide sell?
Laboratory reagents: catalogue peptides in 100 microgram sizes, rabbit antibodies, EIA, ELISA and RIA kits with supplies, and custom peptide synthesis and labelling services.
How much does a peptide cost at Phoenix Peptide?
In September 2025, an amyloid beta A4 protein fragment (693–704) was $120 for 100 µg and a prokineticin-2 fragment was $417 for 100 µg. Prices are per microgram quantity, so they do not compare with per-vial prices at consumer-facing stores.
Can I return a product to Phoenix Pharmaceuticals?
Its terms let the company refuse returns of radioactive, custom-made and temperature-sensitive products, charge a 20% restocking fee on items ordered in error, and limit a quality claim to replacement of products in their original packaging.
Does Medibact have any connection to Phoenix Peptide?
No. Medibact has no affiliation, commercial relationship or arrangement with Phoenix Pharmaceuticals, Inc. or with any seller or laboratory named on this site. We sell USP-grade bacteriostatic water made at an FDA-registered facility in the United States, and we do not sell peptides.
Educational use only — not medical advice. This guide summarizes information reported in published research and community practice for educational purposes. It is not medical advice and not a recommendation to use any compound. Any doses, schedules, or combinations shown are examples of what has been reported, not instructions for you. Many peptides described here are research compounds that are not FDA-approved for the uses discussed and may be investigational or restricted. Effects, risks, and legal status vary; individual needs and results vary. Consult a qualified, licensed healthcare professional before making any decision. Do not use this content to diagnose, treat, or dose yourself.
Medibact does not endorse third-party stores or labs. This review content is educational, based on public website materials, and requires independent verification. No ranking position is a safety guarantee. Affiliate or outclick links may be added later.