BENCHMARK PROFILE
Hello Stacks
Latest sync: Oct 3, 2026, 9:44 AM. Source coverage currently reflects PB Evidence data.
REFERRAL OFFER
20% off with disclosed code
Cart-checked October 1, 2026: BENCHMARK took 20% off BPC-157 10 mg ($49.00 → $39.20) and HGH 24 IU ($99.00 → $79.20). Reconstitution solution was rejected. A StackOne pen already carrying the storefront buy-one-get-one offer also rejected the code. The referral link records the visit and does not apply the discount by itself. PeptideBenchmark may earn 20% on a referred order. That commission is not an extra discount.
PeptideBenchmark has a disclosed affiliate relationship with Hello Stacks. This does not change benchmark scores or trust ratings — it only affects outbound links and pricing-board discount modeling where applicable.
Readers comparing an openly priced U.S. catalog who want lot-level Vanguard Laboratory certificates on vials and Freedom Diagnostics certificates on the StackOne pen line.
Vendor-stated: Hello Stacks is operated by PranaCore Life Inc., 3330 Harbor Blvd., 2nd Floor, Costa Mesa, CA 92626; [email protected]; +1-307-206-2543. The storefront said orders placed by 2:00 PM PST ship the same day. Research-use-only. Observed September 28, 2026.
GLP-1 R, GLP-1 T, and GLP-1 S are storefront codes for retatrutide, tirzepatide, and semaglutide. Prefilled pens and refill cartridges are not lyophilized vials and stay off the $/mg board. HGH is compared in IU. Several catalog products publish a price without a downloadable certificate, including GHK-Cu 100 mg and both GLP-1 S strengths. One public Vanguard MOTS-c 10 mg PDF is not in Vanguard’s current public database, and three StackOne Freedom search codes did not resolve at the laboratory on September 28, 2026. Reconstitution solution and the empty pen stay off the peptide board. As of October 1, 2026, code BENCHMARK is 20% off vials and product links add ?ref=peptidebenchmark. That relationship does not change the September 28 evidence findings or the score.
A Costa Mesa research storefront with public vial prices and lot certificates from Vanguard Laboratory and Freedom Diagnostics that a reader can check at those laboratories.
Hello Stacks publishes standing prices for lyophilized vials and for StackOne prefilled pens and refill cartridges. GLP-1 R, GLP-1 T, and GLP-1 S are the storefront codes for retatrutide, tirzepatide, and semaglutide. Vial certificates are Vanguard Laboratory PDFs under the Hello Stacks client name. StackOne pen and refill certificates are Freedom Diagnostics PDFs under the Stack One Labs client name. HGH is sold in IU. Reconstitution solution and the empty pen stay off the peptide board.
Vial lots link a Vanguard Laboratory PDF. PeptideBenchmark checks the laboratory ID on that PDF against Vanguard’s public certificate database when the laboratory copy names Hello Stacks. StackOne pen and refill lots link a Freedom Diagnostics PDF. PeptideBenchmark checks the printed search code against Freedom’s copy when that copy names Stack One Labs. A matched certificate documents the tested sample and the panels printed on that document. It does not cover a product that has no certificate, and it is not a sterility or heavy-metals finding unless the document reports those assays.
This vendor is one of 130 names currently included in our manual curated research-vendor layer.
This is the strongest public transparency pattern on the site. The key signal is that readers can leave the vendor domain and inspect reports or verification pages on an outside provider domain without needing to log in.
- Treat the outside provider route as the strongest part of the evidence, not the vendor marketing copy around it.
- Look for repeated product-level behavior across the catalog, not just one showcase example.
- Do not overread it as proof that every current lot is covered or current unless the linked report trail itself supports that.
This vendor makes the most sense when you compare it to other vendors using a similar transparency model, rather than to every vendor on the board at once.
PB Curated Assessment is a PeptideBenchmark-authored rubric built from the trust and transparency review layer. It is separate from the source-derived benchmark score.
Hello Stacks is currently one of the strongest curated cases on the site because readers can inspect a repeatable public evidence trail without logging in.
Readers can leave the vendor marketing layer and inspect verification publicly.
This is the strongest public pattern because the verification step routes into an outside provider layer.
Current review touched 77 products and 53 document/link destinations.
2 named lab signal(s) and 2 certification category signal(s) are currently visible in the reviewed evidence.
Score 6.4 from pb evidence score.
PB Curated Assessment: Strong. This is our own trust/transparency rubric and is kept separate from the PB score.
Holding a certificate for this vendor that is not here? Send it to the archive →
Same third-party review signals shown on the vendor board. Click Trustpilot or Pep Review Pro to open the source profile.
PB score is the number you should read first on this page. It starts with trust evidence, pricing coverage, and third-party review signals from Finnrick, Peptide Critic, Trustpilot, and Pep Review Pro when available. Reviewed transparency evidence contributes a bounded amount — shown as a trust lift for source-benchmarked vendors, and folded into the base score for PB-evidence vendors.
This vendor’s score is evidence-first: verifiable testing evidence forms the backbone, and outside review sources are a bounded adjustment that can warn far more than it can boost. The terms below sum to the displayed score (small rounding aside). Full formula on the scoring methodology page.
WHAT THIS PAGE IS
- Board-ranked vendor profile with source-linked benchmark inputs
- No Finnrick score currently linked
- No Peptide Critic score currently linked
- No Trustpilot profile currently linked
- No Pep Review Pro profile currently linked
CURRENT LIMITS
- Not an original lab test or editorial review
- Source scales and methodologies differ across sites
- Depends on source site freshness and formatting
These are representative public examples from the vendor testing review queue. They show how product pages in the catalog expose public report or verification paths, but they should still be read as examples rather than proof for every current lot.
In other words: the relationship registry above captures the vendor-to-provider link itself, while the examples below show what that link looks like across real product pages.
METHODOLOGY
How to read this benchmark
This profile summarizes public benchmark data synced from Finnrick and, when available, Peptide Critic. Finnrick contributes a 10-point average from its vendor table, while Peptide Critic contributes a 5-star rating that we normalize to a 10-point scale before ranking consensus entries.
A high score can be directionally useful, but it is not a substitute for current COAs, identity testing, chain-of-custody details, or your own due diligence. We are intentionally separating source aggregation from first-party editorial claims.
Scores combine PB trust evidence with external signals from Finnrick, Peptide Critic, Trustpilot, and Pep Review Pro when available.