I have not placed an order with Dynamic Peptides. This profile is built from a full read of their site, all 44 product pages checked individually for certificates, and five certificates opened.
A correction worth recording
An earlier pass on this vendor reported that they publish no certificates at all. That was wrong, and the reason is worth knowing if you are looking yourself: their certificates are images inside the product photo galleries, not linked documents, so searching for links and PDF files finds nothing.
There is no index page, no lot lookup, no download link, and no navigation entry for certificates. Every path you would try returns a 404, and the site's own search returns nothing for "certificate of analysis." A buyer finds one only by opening a product page and clicking through the photo carousel past the vial shots.
What the testing shows
For the eight products that have it, the testing is real and reasonably good.
The lab is Horizon Analytical, named on every certificate. The client field reads Dynamic Peptides, correctly, and the identity field carries the vendor's correct singular domain, which is notable given the vendor's own shipping policy and support link do not. The method is ultra-high-performance liquid chromatography with mass spectrometry, and each document carries a chromatogram, a mass spectrum, a scan-to-validate code, and a PubChem identifier.
| Compound | Lot | Analysis | Label to measured | Purity spec to result |
|---|---|---|---|---|
| Retatrutide 10mg | DP-8258361 | 03/14/2026 | 10mg to 9.91mg | >98% to 99.32% |
| Retatrutide 30mg | DP-4311595 | 03/11/2026 | 30mg to 29.5mg | >98% to 99.31% |
| BPC-157 5mg | DP-3664990 | 02/02/2026 | 5mg to 5.7mg | >98% to 99.28% |
| Tesamorelin 10mg | DP-6999761 | 03/22/2026 | 10mg to 10.05mg | >98% to 99.19% |
| GHK-Cu 50mg | DP-9735040 | 04/16/2026 | 50mg to 51mg | >98% to 99.45% |
The chemistry is correct throughout: CAS numbers, molecular formulae, molecular weights, PubChem identifiers, and appearance descriptions all check out, with GHK-Cu correctly described as a blue powder and the rest as white. Content sits close to label on all five, which is a better record than several vendors scoring far above this one.
Two limits. The panel covers three things only: identity, quantity, and purity. No endotoxin, no heavy metals, no sterility, no residual solvents on any of the five. And the purity specification printed on the certificates is greater than 98 percent, not the 99 percent the site's FAQ claims, though every result did clear 99.
The chromatograms are reproduced at a resolution where the main peak is visible but the baseline, the axis labels, and any minor impurity peaks are not. A reader cannot sanity-check the stated purity figure against the trace, which is a direct consequence of publishing certificates as compressed gallery images rather than as documents.
Verification, blocked by the certificate itself
Horizon runs a public verification portal. It has two fields: a required report number, and an optional lot number.
None of the five certificates prints a report number. They print only a lot number. Submitting the lot alone returns "Enter a report number to verify," and submitting the numeric portion of the lot as a guess returns no match. The only remaining route is the QR code, which requires a phone.
So a document that states it is searchable via the lab's website omits the one field that search requires. That is a defect in the certificate rather than a limitation of this review, and it means no desktop buyer can verify one of these documents at all.
On the open question about the signing chemist, this pass got half an answer. Aleksey Yevtodiyenko is named on the certificates as Horizon's signatory, titled "Research and Formulation Chemist." Two things cut differently there. Formulation chemist is a manufacturing-side title rather than an analytical one, and it sits oddly on the signature line of an independent testing lab. Against that, his name appears on certificates published by numerous unrelated peptide vendors, which is what you would expect of one signatory at a lab serving many clients, and is therefore neutral-to-positive rather than suspicious. Whether he is employed by the lab or by a vendor remains unsettled and would need a direct approach to Horizon.
Coverage: 8 of 44
I checked all 44 product pages individually. Eight carry a certificate. Thirty-six do not.
The eight: BPC-157 in both sizes, the BPC-157 and TB-500 blend, GHK-Cu, kisspeptin, the KLOW blend, retatrutide in both sizes, tesamorelin, and tirzepatide.
The thirty-six include AOD-9604, CJC-1295, DSIP, epithalon, GHRP-6, the GLOW blend, glutathione, hexarelin, IGF-1 LR3, ipamorelin, melanotan, methylene blue, MOTS-C, NAD+, oxytocin, PT-141, selank, semaglutide, semax, sermorelin, SS-31, TB-500 on its own, thymosin alpha-1, the copper peptide serum, and every capsule product in the catalog.
Against that, the homepage carries a section headed "COA's For Every Product," and the FAQ states that each product includes a certificate providing full details about purity and testing results. Eight of forty-four. That heading is the sharpest single line on the site, and no route to request a certificate for the other thirty-six is described anywhere.
Their certificates are also the oldest in this field. Analysis dates run early February to mid-April 2026, five to seven months old at this check, with no newer lots published. And no lot number appears on any product page, so a buyer cannot tell whether the vial they receive corresponds to the certificate shown.
Research-use framing, the weakest here
The footer disclaimer is well drafted, covering research use only, a 21-plus requirement, and explicit statements that the company is neither a compounding pharmacy under section 503A nor an outsourcing facility under 503B. Their FAQ declines to give administration guidance, stating that because products are strictly for research purposes they do not provide usage instructions. A researcher-verification gate fronts the site. All of that is genuinely to their credit.
The catalog does something else entirely.
They sell finished oral dosage forms. Capsule products at a stated per-capsule strength in 30 and 60-count bottles, including 5-Amino-1MQ, BPC-157, KPV, enclomiphene, SLU-PP-332, and tesofensine. The product copy describes the capsule format as letting researchers maintain precise quantities across structured protocols. They also sell a cosmetic copper peptide serum, a vitamin B12 product, methylene blue, and a nasal spray. None of the capsule products, the serum, or the sprays carries a certificate.
And the category structure was relabelled without being rebuilt. The visible category names read as research framing: Metabolic Research, Neuro Research, Libido Research, Repair and Recovery Research, Circadian Research, Dermal Research. The URLs underneath were never changed, and still read weight-loss-peptides, muscle-growth-peptides, sexual-health-peptides, anti-aging-peptides, sleep-peptides, and cognitive-peptides. The weight-loss category still carries a page title built around fat loss. The storefront labels changed. The slugs and the indexed titles record what the categories were built to sell.
The support address
This is the most concrete defect found on any vendor in this field, because it silently breaks the only remedy the company offers.
The footer on every page displays support@dynamicpeptide.com. The underlying mailto link points to support@dynamicpeptides.com, plural. That plural domain is registered to an unrelated business, a meal-prep company, and redirects to their website. The shipping policy prints the same plural domain as Dynamic's own website.
Their refund policy instructs customers to email support with an order number and photo evidence. A buyer with a damaged order who clicks the address on the page and follows those instructions does not reach this vendor.
Whether it is a replicated typo or a misconfiguration does not change the outcome. Worth noting that Horizon Analytical got the domain right on all five certificates while the vendor did not get it right on its own site.
Ordering, shipping, payment, and returns
Their shipping policy publishes no processing time, no delivery estimate, no carrier, no cutoff, and no cost. Its substantive content is that processing usually starts shortly after payment, delivery time depends on location and method, and once shipped the order is the courier's responsibility. No shipping price appears anywhere on the site, and no free-shipping threshold is advertised.
Returns offer replacement only, never a refund: one replacement per customer per order, for shipping damage, a defect, a wrong item, or a missing item, with photo evidence required. Change-of-mind, accidental orders, opened products, and misuse are all excluded. No reporting window appears in the policy body, only "as soon as possible." The page's own title tag advertises 30-day support, a term that appears nowhere in the policy text.
Payment includes Visa, Mastercard, and American Express alongside Cash App, Venmo, and Zelle. Those last three carry no chargeback rights. Set against a policy of no refunds under any circumstances and one replacement per order, a buyer paying by any of them has no recourse at all.
Transparency and sentiment
No physical address anywhere, including on the contact page, which offers a text line and a form. No legal entity in the terms, the disclaimer, or anywhere else. No founder, officer, or staff member identified. The about page names no manufacturing partner, facility, or lab, describing only trusted partners. The domain record is redacted behind a privacy service, and the domain itself is about ten months old.
Their Trustpilot page returns a 404, meaning no profile was ever created. That is a different fact from a profile being removed, and I score it differently. The only reviews are self-hosted on their own domain, claiming 4.9 from 15 reviews, with five-star testimonials attributed to named individuals with job titles and stamped verified by the vendor itself. The page is built for search rather than for readers, opening with a list of search phrases.
To their credit, none of those testimonials claims a health outcome. They are about packaging, shipping, and support. It is still vendor-written and vendor-verified, and it is not community sentiment.
Where they fall short
- The published support address does not reach them, breaking the only remedy the refund policy offers.
- Eight of forty-four products have a certificate, under a homepage heading claiming one for every product.
- The certificates cannot be verified, because they omit the field the lab's own portal requires.
- Five to seven month old testing, the oldest in this field, with no lot number on any product page.
- No shipping cost published anywhere, and a shipping policy with essentially no content.
- No refunds ever, alongside payment rails with no chargeback rights.
- Finished capsules, a cosmetic serum, and nasal sprays, none of them tested, under category URLs that still name weight loss and muscle growth.
- No address, no entity, no named person, and no independent review profile.
Bottom line
There is a real, if small, core here: a named independent lab, correct client attribution, correct chemistry, and purity results that clear the claim. On the eight products that have it, the documentation is more trustworthy than at several vendors scoring higher, because the one thing it proves, it proves properly.
Everything around that core is either missing or broken. Four fifths of the catalog has nothing. The certificates cannot be checked. The shipping policy says nothing. The refund policy offers nothing and routes you to an address that reaches a meal-prep company. The categories still carry the URLs of the storefront this used to be.
Fixing the email address is a five-minute job and would be the single highest-value change they could make, because right now a customer with a genuine problem has no working way to report it.