What this store offers
RUO peptide catalog with documentation-oriented product pages
Store Review Article
Biotech Peptides review: one of its certificates read line by line, and a refund policy that says two things
Biotech Peptides is an operating US storefront that links a certificate of analysis to each size of each product. This review reads one of those certificates — issued by MZ Biolabs — line by line, and records what the store's pages said on 9 October 2026 about its catalogue, shipping, lost parcels, refunds and contact details, including two places where its own wording pulls in different directions.
Public materials checked 2026-10-09. Details published by third parties change; verify current information at the source before relying on it.
Quick answer
Biotech Peptides was trading on 9 October 2026 with 89 products; BPC-157 was $52 for 5 mg and $92 for 10 mg. Each size links a lot-specific certificate. The 5 mg BPC-157 certificate is from MZ Biolabs: lot 3140013, analysed 15 July 2026, purity 99.94% by a method labelled HPLC-UV-MS, with a two-peak UV chromatogram. It reports no measured peptide content, and no mass value appears in its text. Lost or damaged parcels are replaced free of charge. The refund page offers a "30 day refund" while refusing returns, and the terms ask buyers to consult a doctor before purchasing products the site sells for in-vitro research only.
Status on 9 October 2026
Trading; 89 products; Las Vegas, Nevada address
Certificate read
MZ Biolabs, lot 3140013, 15 July 2026, 99.94% by HPLC-UV-MS
Lost or damaged parcels
Replaced free of charge, by the store's own policy
Quick checklist before deeper review
- Match the lot number on the certificate to the lot on the vial you receive.
- Read what the certificate measures: a purity percentage, not the amount of peptide in the vial.
- Ask what the "30 day refund" covers, since the same page says returns are not accepted.
- Note the same-day cut-off of 1 pm Pacific if timing matters.
- Use the store's own laboratory pages to check what that laboratory says its purity test leaves out.
Top-half signal table
| Checkpoint | Public signal in this pass | Why this matters |
|---|---|---|
| Trading status | Operating; 89 products listed on 9 October 2026 | Confirms there is a current seller to assess |
| Certificate per size | Lot-specific PDF linked for each size, e.g. BPC-157 5 mg lot 3140013 | The document matches the exact product chosen |
| What the certificate shows | Purity 99.94%, two-peak UV chromatogram, named analyst | No measured content; no mass value in the text |
| Lost or damaged parcels | Replaced free of charge | Transit risk sits with the seller, not the buyer |
| Refund wording | "30 day refund guaranteed" alongside "we do NOT accept returns" | Worth clarifying before ordering |
| Business identity | Las Vegas street address, a call-or-text phone line, email and a form | A buyer can tell who they are dealing with and how to reach them |
What the store shows on 9 October 2026
The catalogue lists 89 products: single peptides, a long list of two- and three-peptide blends, and an offer to synthesise "any peptide" to a customer's sequence. Prices are shown openly; BPC-157 was $52.00 for 5 mg and $92.00 for 10 mg. The store describes itself as trading since 2019, with peptides synthesised and freeze-dried in the United States and every batch verified by a third-party laboratory with results posted on the site.
Research-use wording appears on every page: the footer says the products are sold for research, laboratory or analytical purposes only and not for human consumption, that buyers must be 21 or older, and that the company is a chemical supplier, not a 503A compounding pharmacy or a 503B outsourcing facility.
Reading one certificate line by line
Each size of each product carries its own certificate file, named by lot and date. We opened the one for BPC-157 5 mg. It is a one-page report headed "Proof of authenticity" from MZ Biolabs in Tucson, Arizona, addressed to Biotech Peptides. It gives lot 3140013, an analysis date of 15 July 2026, a purity of 99.94% and a method of HPLC-UV-MS, lists the peptide's sequence and PubChem identifier, and names the analytical chemist who performed it; the report itself is dated 22 July 2026.
The evidence on the page is a UV chromatogram with a peak list: two peaks, the main one at 6.69 minutes holding 99.94% of the area and a minor one at 5.00 minutes holding 0.06%. A note explains that salts and sugars added to aid solubility are not normally seen by UV and are not counted as impurities. Two things the document does not show are worth knowing. No measured peptide content appears — the 5 mg is the labelled amount. And although the method is labelled HPLC-UV-MS, no observed mass value appears in the text of the document, so the identity confirmation rests on the method label rather than on a figure a reader can check.
MZ Biolabs' own site, read the same day, states that its purity testing does not test for activity, sterility, endotoxins, heavy metals or pH, and claims no ISO/IEC 17025 accreditation. Both points apply to this certificate as much as to any other the laboratory issues.
| Field | What the certificate says |
|---|---|
| Laboratory | MZ Biolabs, Tucson, Arizona |
| Lot and analysis date | 3140013, 15 July 2026 (report dated 22 July 2026) |
| Purity and method | 99.94%, HPLC-UV-MS |
| Chromatogram | UV, two peaks: 6.69 min (99.94%), 5.00 min (0.06%) |
| Measured peptide content | Not reported |
| Observed mass | No value in the document's text |
Shipping, parcels, refunds and contact, as written
The store's policies are short. Two of them are generous by the standards of this market; one needs a question before ordering.
- Free USPS Priority shipping on orders over $200, shown on product pages.
- Same-day dispatch for orders placed by 1 pm Pacific.
- Damaged parcels: replaced free of charge. Lost parcels: the same order sent again free of charge.
- Returns: not accepted, "due to the nature of our products"; dissatisfied buyers are asked to get in touch.
- Refunds: the refunds page says "we stand behind our products and offer a 30 day refund guaranteed" and, in the next sentence, that returns are not accepted. It does not say what the refund requires.
- Terms: the terms and conditions ask buyers to consult their own doctor before purchasing, while the same terms say the information and products are for in-vitro laboratory research only.
- Contact: a street address in Las Vegas, Nevada, a phone number for calls or text messages, a support email and a contact form. Payment methods are not listed on the pages we read.
What changed on this page
The previous version of this review was generated from a template shared with every store review and told readers, in general terms, what to check. This version records what the store's own documents say on a stated date, including one certificate read in full. It carries no score and makes no recommendation; the findings are there to be checked again, and they will change as the store updates its pages.
Limits of this page
- We read the store's public pages and one certificate on 9 October 2026, and the MZ Biolabs site the same day. We did not buy, receive or test any product, and we do not test products of any seller.
- One certificate was read in full. Other products and sizes carry their own certificates, which may differ in laboratory, date, lot and result.
- The product count is the number of products the store's catalogue returned on that day; it changes as items are added or withdrawn.
- 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 Biotech Peptides or MZ Biolabs. Names are used only to identify the businesses described.
Related internal pages
FAQ
Is Biotech Peptides still in business?
Yes. On 9 October 2026 the store was serving 89 products with prices, per-lot certificates and a working contact page.
Does Biotech Peptides publish certificates of analysis?
Yes, one per size of each product, named by lot and date. The BPC-157 5 mg certificate we read is from MZ Biolabs: lot 3140013, analysed 15 July 2026, purity 99.94% by HPLC-UV-MS.
Does the certificate show how much peptide is in the vial?
No. It reports a chromatographic purity percentage. The 5 mg is the labelled amount; no measured content appears, and no observed mass value appears in the document's text.
What happens if a Biotech Peptides parcel is lost or damaged?
Its shipping page says a damaged parcel is replaced free of charge and a lost parcel is re-sent free of charge.
Can I get a refund from Biotech Peptides?
Its refunds page offers a "30 day refund guaranteed" and also says returns are not accepted, without explaining what the refund requires. Ask the store before ordering.
Does Medibact have any connection to Biotech Peptides?
No. Medibact has no affiliation, commercial relationship or arrangement with Biotech Peptides, MZ Biolabs or 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.