I placed an order with Ascension Peptides myself before writing this, specifically to check their COA process, packaging, and shipping against what they claim on their site. This review combines that order with a full desk review of their documentation, verified against their testing lab's own records.
The order
I ordered R-10, Ascension's coded listing for retatrutide at 10mg per vial. Their GLP-1 family products use short codes like R-10/R-30, T-10/T-30, and S-5 rather than spelling out the compound name on the listing itself. It arrived in 4 to 5 days, which is reasonable for domestic shipping and consistent with what they state.
Packaging was more than sufficient: nothing rattling loose, adequate insulation for a temperature-sensitive lyophilized product. Worth noting that their shipping policy makes no cold-chain commitment in writing, so what I received was better than what they promise.
Verifying the COA
I checked the lot number printed on my physical vial against the corresponding record in their published library, and the batch number on the vial matched the corresponding COA on their site Verified COA.
This is the single most important verification step for any research peptide order, and it is one most buyers skip. A lot number that does not match a real, independent lab report is the biggest red flag in this market. Ascension is one of only two vendors on this site where I have completed that check against a vial in my own hands, and the only one whose whole catalog is published as lot-specific records, which is why their testing score is the highest I have awarded.
Third-party testing and COAs
Their library at /certificates-of-analysis/ holds 85 lot-specific records against a 41-product catalog, searchable
and sortable by product, SKU, batch, purity, and date. Purity, batch number, and test date are all visible in the index
before you open anything, which is the most useful COA presentation I have come across.
Each record opens as a four-document package, not a single sheet: the certificate of analysis, a quantitative endotoxin analysis, a heavy metals analysis, and a rapid sterility screen. All four from Kovera Labs in Buffalo Grove, Illinois, with the vendor named as client on every one.
The analytical work behind them is real. The heavy metals report runs ICP-MS against EPA-referenced methods and publishes a spike-recovery table at 86 to 102 percent against 75 to 150 percent criteria, plus method blank, continuing calibration, and duplicate relative percent difference. That is genuine laboratory rigor, not a one-line pass.
Two things the documents say about themselves are worth quoting rather than glossing. The sterility screen states: "This rapid screening method provides preliminary sterility assessment and is suitable for quality control purposes. For regulatory compliance, full compendial sterility testing may be required." So it is a two-day screen, not USP 71, and the report says so plainly, which is more than most vendors' documents do. And the purity reference standard printed on the certificates is greater than 98 percent, not 99. Actual results beat 99 percent on both lots I opened, 99.371 and 99.441 percent, but the specification the lab certifies against sits a point below what the site's banner implies.
I verified two reports through Kovera's own public lookup. The BPC-157 record reconciled exactly, field for field. The Selank record did not, and that is the second flag on this review: three different certified dates across the vendor's copy, the lab's record, and the vendor's own index, with every analytical value matching. One of two is an isolated error rather than a pattern, but on a document whose whole job is traceability it is a legitimate ding.
One thing that looked suspicious and checked out clean, recorded so nobody re-flags it: the pink Ascension logo watermark printed across the chromatogram also appears on Kovera's own hosted copy of the same report. It is the lab's template carrying client branding, not something the vendor added afterwards. It is still a real criticism of the document's usefulness, because the watermark sits directly over the baseline region where minor impurity peaks would be read.
Research-use labeling
This is the strongest in the field and it is not close. Three independent, deliberate signals:
Their contact page carries, in capitals: "WARNING: PLEASE DO NOT CONTACT ASCENSION PEPTIDES WITH QUESTIONS REGARDING METHODS OF CONSUMPTION, DOSAGES, ETC. ANY QUESTIONS RELATED TO THOSE TOPICS WILL GO UNANSWERED." Their FAQ answers a dosage question with a flat refusal. And they will not sell the accessories at all: "We do not provide reconstitution liquids such as Bacteriostatic Water or Acetic Acid. WE DO NOT SHIP SYRINGES, as we are a Research Chemical Company."
Several vendors in this category write a research-use disclaimer and then sell reconstitution kits and prep pads alongside it. Ascension declined the revenue. That is the difference between a disclaimer and a position.
Pricing and value
Every one of their 41 products displays a struck-through list price beside a lower current price flagged SALE, which is a permanent-discount presentation where the list price is effectively never charged. Judge the current price, not the discount.
At current pricing, BPC-157 at $4.90 per mg is competitive for this field, and the KLOW blend at $1.50 per mg across 80 mg total is among the better per-mg figures available anywhere. Volume tiers apply modestly on top of that, starting around 3 percent.
Ordering, shipping, and payment
Flat $15 domestic on every order with no free-shipping threshold at any size. They are the only vendor I have scored who charges shipping on a large order. Most ship within 24 hours, arriving in 2 to 5 business days by UPS or USPS, carrier chosen by them.
Risk allocation sits entirely with the buyer. Once an order ships, loss or damage in transit is the buyer's responsibility, they are not responsible for lost or damaged packages once the carrier has custody, and they are not responsible for packages stolen after delivery. The remedy offered is a third-party upsell, Route Shipping Protection, with claims filed with Route rather than with the vendor.
Payment is Visa or ACH bank draft. ACH carries no chargeback right, and that combines badly with the returns policy below.
Where they fall short
- The returns policy is the harshest of the twelve vendors I've scored. All sales are final for any reason. Damaged or incorrect orders must be reported within 24 hours of receipt, against 72 hours at American Peptides and a real 30-day window at Midwest. Miss the day and there is no remedy at all.
- The chargeback language goes further than anyone else's. They reserve the right to "take legal action to recover any funds that have been charged back" and to charge the customer a fee covering their chargeback expenses. Paired with ACH payment, which has no chargeback right to begin with, a buyer has very little recourse.
- Their Trustpilot profile was removed for guideline violations. Trustpilot does not publish the reason. Whatever caused it, the practical effect is that there is now no independent sentiment source for this vendor at all, and a previously-cited rating can no longer be verified by anyone.
- No legal entity name and no About page. The navigation runs FAQs, Certificates of Analysis, My Account, Contact Us, Partner Program, Wholesale. Nobody is named as owner, officer, or founder anywhere on the site or in the domain record, and the Kansas City address is a unit number that reads like a mailbox suite. The phone is a Colorado area code against a Missouri address.
- Shipping costs $15 no matter what you spend. On a small order that is a meaningful share of the total.
Who this vendor is a good fit for
Someone whose priority is knowing what is in the vial, who will open the box the day it arrives, and who is comfortable with no recourse after that. The testing package here is the deepest in the field, the labeling discipline is genuinely principled rather than performative, and I verified a real vial against a real certificate. That is worth a lot.
It is a poor fit for anyone who wants a safety net. Between all-sales-final, a 24-hour window, bank-draft payment, and the chargeback clause, the entire post-delivery risk sits with you by design.
Bottom line
Ascension is the clearest example in this whole batch of a vendor whose documentation and whose commercial terms point in opposite directions. The lab work is the most thorough I've reviewed, the research-use position is the most disciplined, and the one physical check that actually proves a supply chain came back clean. Then the policies hand the buyer every risk and reserve the right to sue you for disputing a charge.
I ordered here, the order was good, and I would order again with my eyes open about the terms. One clean order does not make a vendor bulletproof, which is exactly why I check the COA rather than trusting the packaging and a fast shipping label. Check your own lot number when it arrives, and open the box the day it lands.