Hello Stacks Review
Scored 6.08/10 on the published Peptide Source Review formula: lab credibility, shipping, pricing, operating history, and transparency.
- COAs on file
- 21
COAs on file
- Confirmed at the lab
- 21
Confirmed at the lab
- Products
- 34
Products
- Labs
- 1
Labs
6.08/ 10
Last scored
No testing cap
- Lab credibility and recency55%5.8 (show how this was scored)
- Shipping and refund20%7.0 (show how this was scored)
- Pricing15%7.5 (show how this was scored)
- Operating history5%1.3 (show how this was scored)
- Business transparency5%6.0 (show how this was scored)
Weights are fixed for every vendor. Select a row to see how it was scored.
Is Hello Stacks legit?
Hello Stacks scores 6.08 out of 10 (Fair, #59 of 100) as of November 6, 2026 and passes our testing gate: 21 of the 33 products we score carry a certificate, 21 confirmed with the issuing lab (a lab we grade B+). Its strongest area is pricing (7.5/10); its weakest is operating history (1.3/10), with about six months of records.
On lab evidence, the heaviest-weighted factor, Hello Stacks has independently verified third-party COAs, with COA work on record from Vanguard Laboratory. Its lowest price per milligram in our data is on NAD+ (see the table below).
How this score was calculated
Every point below follows the published tables in our methodology, with the policy wording we scored and a link to where we read it. Evidence last checked October 22, 2026. Lab credibility is worked product by product from the certificates on file.
Lab credibility5.8/10
Each carried product (lab supplies excluded) is scored from the certificate on file for it, on the published lab rubric: 3 for a published certificate, then points for the laboratory, the verification key, the tests on the certificate and its purity, held to 0 to 10. A certificate that is self-issued, names no laboratory, or comes from a laboratory whose independence is not established scores a flat 2.0; a product with no certificate, a certificate the laboratory’s own record fails, or a posted copy that differs materially from the laboratory’s copy scores 0. Calculated on , the day this page was built; the date each certificate was tested is shown on its row.
- 5-Amino-1MQ9.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
- AOD-96047.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-07-01
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- −1.5Purity 98.46% (97.0% up to but not including 99.0%)
- BPC-1579.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
- Cagrilintide0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- CJC-12950.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
Certificate from Vanguard Laboratory, tier B+ · tested 2026-07-01
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.5% (99.0% up to but not including 99.7%)
- DSIP8.5
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.22% (99.0% up to but not including 99.7%)
- Epitalon0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- GHK-Cu9.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-20
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
- GLOW9.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.5% (99.0% up to but not including 99.7%)
- Humanin7.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- −1.5Purity 97.2% (97.0% up to but not including 99.0%)
- IGF-1 LR30.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- Ipamorelin0.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- KLOW8.5
Certificate from Vanguard Laboratory, tier B+ · tested 2026-07-01
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.5% (99.0% up to but not including 99.7%)
- KPV9.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
- LL-378.5
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.48% (99.0% up to but not including 99.7%)
- MOTS-c8.5
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.13% (99.0% up to but not including 99.7%)
- Melanotan-20.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- NAD+8.5
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.14% (99.0% up to but not including 99.7%)
- Oxytocin7.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- −1.5Purity 98.78% (97.0% up to but not including 99.0%)
- PT-1418.5
Certificate from Vanguard Laboratory, tier B+ · tested 2026-07-01
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.35% (99.0% up to but not including 99.7%)
- Retatrutide9.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
- Selank0.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- Sermorelin0.0
No certificate on file for this product: scores 0, counted fully because it is one of the core products.
- SLU-PP-3320.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- SS-310.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
- TB-5009.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- +0.5Purity 99.8% (99.7% or higher)
- Tesamorelin7.0
Certificate from Vanguard Laboratory, tier B+ · tested 2026-04-16
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- −1.5Purity 98.51% (97.0% up to but not including 99.0%)
- Testagen0.0
No certificate on file for this product: scores 0, counted at 0.5 weight because it is not one of the core products.
Certificate from Vanguard Laboratory, tier B+ · tested 2026-07-01
- 3.0Certificate published (base)
- +2.0Laboratory in our directory at tier B+ (Vanguard Laboratory)
- +1.5Verification key printed
- +1.5Key confirmed at the laboratory's own site
- +0.5Endotoxin test
- 0.0Purity 99.1% (99.0% up to but not including 99.7%)
Weighted mean of 33 products (8 non-core products without a certificate counted at half weight): 176.5 ÷ 29.0 = 6.086.
- −0.20LOT Lot numbers that do not identify a single batch (cap −0.2): VR0304260110 on 9 products; VR108082500001-10 on several
- −0.10CLAIM Claims the certificates do not support (cap −0.3): uncovered pages say 'HPLC-tested by an independent A2LA-accredited lab'; library titled 'Every Lot'; 12 products have none
6.086 − 0.300 = 5.786, rounded to 0.1: 5.8/10.
Testing gate: 21 of 33 products have a certificate from a directory laboratory (not tier D, not self-issued) with the key confirmed at the laboratory. That is at least half, so the vendor counts as third-party tested and no cap applies.
Shipping and refunds7.0/10
- +1
Returns and refunds
all sales are final and we do not accept returns, except as described below (missing, incorrect, or damaged items)
- +1
Lost or damaged parcels
missing, incorrect or damaged items ... we will put it right; 'approved at Hello Stacks' sole discretion'; in-transit loss not addressed
hellostacks.com (opens in new tab) source 2 (opens in new tab)checked
- +1.5
Dispatch time
Orders placed, paid, and processed before 2:00 PM PST typically ship out the same business day.
- +1
Tracking on all orders
You'll get a tracking number as soon as the label is created.
- +1.5
Payment you can dispute
Orders are paid by credit or debit card at checkout.
- +1
Shipping rates published
FREE shipping with orders over [price]
Total +7: 7.0/10.
Pricing7.5/10
We compared Hello Stacks’s current single-vial prices on 32 products, each matched to the same product and milligrams per vial, with the median price of the other vendors. Its typical price (the median ratio across those products) is 7% below the market median (ratio 0.93), which the published scale maps to 7.5/10. checked
Operating history1.3/10
Counted from April 16, 2026, the earliest dated evidence of this business operating: 6.2 months as of October 22, 2026, which the published table maps to 1.3/10.
Domain hellostacks.com registered 2020-02-19 but listed for sale (dan.com 2021-12; atom.com 'HelloStacks' 2024-07 through 2025-07-11), so the domain age is not operating history. Wayback CDX (re-listed this pass): 2018-08 and 2019-06 an empty Apache index (before the 2020 registration), 2021-12 dan.com sale redirect, 2024-04-17 a parked /lander page, 2024-07 to 2025-07-11 atom.com sale redirects, then nothing until 2026-10-01 (202 challenge) and a product page 2026-10-15; no capture of the store before 2026-10. Earliest verifiable evidence of the business is its first Vanguard Laboratory certificate round, dated 2026-04-16 (lab IDs V260407-4-xxx, client Hello Stacks, confirmed at verifiedbyvanguard.com/api/verify on 2026-10-20). The business therefore began between 2025-07-11 and 2026-04-16; the previous pass credited the 2025-07-11 bound, which is not evidence of selling.
- 2025-07-11 Archived copy: redirects to atom.com/name/HelloStacks (domain for sale) web.archive.org (opens in new tab)
- 2024-04-17 Archived copy: parked page (script redirect to /lander) web.archive.org (opens in new tab)
- 2026-04-16 Certificate: earliest certificate issued to Hello Stacks (5-Amino-1MQ, lab ID V260407-4), verified at the lab verifiedbyvanguard.com (opens in new tab)
Transparency6.0/10
- +2
Legal entity named
PranaCore Life Inc., a corporation that owns and operates the Hello Stacks store
- +1
Business address
Hello Stacks, operated by PranaCore Life Inc., 3330 Harbor Blvd., 2nd Floor, Costa Mesa, CA 92626
Address checked: virtual office.
- +1
- 0
Named owner or staff
none for the vendor (Dustin Newman is the testing lab's director)
- +1
Dated terms with a governing law
Last updated: August 6, 2026; 'governed by the laws of the State of California'
- +1.5
Testing lab named, certificates published
Lab Tests page; issuing lab named (Vanguard Laboratory, whose A2LA accreditation does not cover peptide testing, checked 22 October 2026)
- −0.5
GLP products sold only under code names
GLP-1 R 40mg
The product page's visible heading, description and specifications do not name the compound.
Total +6: 6.0/10.
- Research content such as calculators or protocol articles is not scored (ruling of 22 October 2026); the first-pass deduction for it was not applied.
Reader discount
Save 25% at Hello Stacks
- Rated 6.08/10 · Fair
- 21 COAs confirmed at the issuing lab
- Best value: NAD+ at $0.09/mg
Affiliate link: we may earn a commission if you buy. It never affects the score or rank.
Current Hello Stacks offers
BOGO: Buy One, Get One Free on Most Vials
Hello Stacks' homepage banner offers buy one, get one free on most vials, applied automatically with no code needed. Free shipping over $150, and orders placed before 2:00 PM PT ship the same business day.
PSR25: 25% Off Every Vial (BAC Water Excluded)
Reader code PSR25 for 25% off every vial (bacteriostatic water excluded), reusable on every order, issued to us by Hello Stacks by email on 2026-10-16. The code is not displayed on the vendor's site.
Reader code exclusions: Bacteriostatic water is excluded.
Audit history and why the rating changed
We re-audit vendors against their live COAs and site. Here is what most recently moved this rating, and why.
See the full score history and chart
- Most recent audit · 6.10to6.08
Pricing re-checked on 6 November 2026 after the market medians were recalculated with GhostLabz and NextSelf Labs added pricing 7.6 to 7.5.
- Audit · 6.08to6.10
Pricing re-checked on 5 November 2026 after the market medians were recalculated with Peptyes added pricing 7.5 to 7.6.
- Audit · 6.07to6.08
Pricing re-checked on 5 November 2026 after the market medians were recalculated pricing 7.4 to 7.5.
Earlier audits (11)
- Audit · 6.01to6.07
Core products recomputed on 29 October 2026 (rule A1b): listings added for newly reviewed vendors made NAD+ a core product in place of CJC-1295, so a missing certificate for each now counts at its new weight: lab 5.7 to 5.8.
- Audit · 6.03to6.01
Market medians updated after Delix Labs and Ageless Peptides were added pricing 7.5 to 7.4.
- Audit · 6.04to6.03
Market medians updated after S1Research was added pricing 7.6 to 7.5.
- Audit · 6.07to6.04
Pricing recomputed on 26 October 2026: listings added for a newly reviewed vendor (StudzPeptides) moved the market median for the same products: pricing 7.8 to 7.6.
- Audit · 6.46to6.07
Laboratory grades re-checked on 22 October 2026 under the published laboratory rulebook (checks L1 to L6 on How We Rate). Vanguard Laboratory's A2LA accreditation does not cover peptide testing (its scope lists microbiology, trace elements, preservatives and residual solvents), so its certificates no longer earn the accreditation point (check L6); its identity test is by HPLC retention time (check L4), which grades it B+. This affects all 21 Hello Stacks certificates. The same check found that these certificates carry no identity test, so our records no longer list LC-MS identity for them. Lab 6.4 to 5.7.
- Audit · 6.07to6.46
Lab score recalculated on 22 October 2026 under the published core-product rule (A1b): a missing certificate on one of the 15 most widely carried products still counts fully, while on any other product it now counts at half weight, so a broad catalogue is not penalised as much for its breadth. Lab 5.7 to 6.4.
- Audit · 6.10to6.07
Re-scored on 22 October 2026 under the published rulebook, which now gives one rule for each judgement call and applies it to every vendor: transparency 6.5 to 6.0.
- Audit · 6.04to6.10
Re-scored on 22 October 2026 under version 2 of our published rules. The deduction for verification codes the laboratory could not find was retired: each such certificate now keeps its points for the printed key and earns none for confirmation, and codes on certificates we do not score no longer count: the one code behind it is not on the scored MOTS-c certificate. Lab 5.6 to 5.7. Score 6.04 to 6.10.
- Audit · 6.54to6.04
Re-scored on 22 October 2026 under our published rubric for shipping, pricing, operating history and transparency, applied to every vendor the same day: prices re-read from the vendor's site and matched by milligrams per vial, operating history from the earliest dated evidence of the business, and policies scored item by item. shipping and refunds 8.0 to 7.0, pricing 8.0 to 7.8, operating history 5.9 to 1.3, transparency 7.3 to 6.5.
- Audit · 6.12to6.54
Pricing 5.2 to 8.0. The earlier figure blended the pen line with the vials. Our method everywhere else uses standard prices for the cheapest plain vial of each compound, with no code applied; on that basis the plain vials sit at about 0.87 times the market median per milligram, with 26 of 32 compounds below the median.
- Audit · 7.33to6.12
Lab evidence re-checked on 20 October 2026 under our coverage rule, which counts a listed product with no published certificate as zero in the lab average. Certificates cover 21 of the 33 products we list that the vendor offers for sale. Lab 7.8 to 5.6.
Editor’s notes
Hello Stacks runs its testing through Vanguard Laboratory, which cites ISO/IEC 17025 accreditation through A2LA (its scope does not cover peptide testing, checked 22 October 2026), and publishes 31 certificates with a per-certificate verification page on the laboratory's own domain. We checked them first-hand and the verification mechanism is the strongest we have used: each certificate resolves to a unique record showing the issuing party, the report number and an authentication state. Endotoxin is reported on every certificate, and the results vary rather than repeating one convenient figure, which is what a genuine assay looks like. Against that, the certificates reflect two testing rounds rather than per-batch testing, no identity test, sterility or heavy-metals results appear anywhere, roughly half the purity figures are specification limits rather than measured values, and one lot code is shared across as many as nine different compounds, so a lot number does not identify a single production batch. Retatrutide and tirzepatide are listed as GLP-1 R and GLP-1 T, and compound-specific naming is part of our transparency measure. Certificates exist for GLP-1 T at 10mg, 30mg and 60mg, but no plain GLP-1 T vial is on the storefront as of 6 October 2026; it is sold only as a pen. Pricing splits sharply by product form and readers should know which half they are buying. The plain vials are good value: when we re-read standard prices for the cheapest plain vial of each compound on 22 October 2026, with the pens excluded, they sat at about 0.9 times the market median per milligram across the 32 compounds we could compare. The exceptions are worth naming: oxytocin 2mg works out to roughly five times the market median per milligram, sermorelin about 1.6 times, and epitalon about 1.3 times. The StackOne pen line is roughly 2.9 times median, and the GHK-Cu pen is about 7.5 times, so a discount applied there still leaves a reader paying well above the market. Shipping is a genuine strength: free above an order minimum, same-business-day dispatch before 2:00 PM PST, and quantity breaks of 10% at five units and 25% at ten. Certificates cover 21 of the 34 products we list, and every one of those 21 resolves at the laboratory's own verification hub.
Hello Stacks COAs and lab test results
One row per product: the certificate on file and how the lab rule reads it, the laboratory that issued it and its tier, the date it was tested, the purity it reports, and the lowest price per milligram we recorded (per IU or mL where a product is sold that way).
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $3.90$39.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 98.46%
- Price per mg
- $6.90$69.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $4.90$49.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $7.90$79.00 / 10mg
- Purity
- —
- Price per mg
- $15.80$79.00 / 5mg
- Purity
- —
- Price per mg
- $7.90$79.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.5%
- Price per mg
- $7.90$79.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.22%
- Price per mg
- $4.90$49.00 / 10mg
- Purity
- —
- Price per mg
- $3.90$39.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $0.69$69.00 / 100mgbest of 2 sizes
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $1.84$129.00 / 70mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.5%
- Price per mg
- $6.90$69.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 97.2%
- Price per mg
- $7.90$79.00 / 10mg
- Purity
- —
- Price per mg
- $79.00$79.00 / 1mg
- Purity
- —
- Price per mg
- $4.90$49.00 / 10mg
- Purity
- —
- Price per mg
- $4.90$49.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.5%
- Price per mg
- $1.74$139.00 / 80mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $4.90$49.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.48%
- Price per mg
- $9.80$49.00 / 5mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.13%
- Price per mg
- $2.98$119.00 / 40mgbest of 3 sizes
- Purity
- —
- Price per mg
- $3.50$35.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.14%
- Price per mg
- $0.09$89.00 / 1000mgbest of 2 sizes
Vanguard LaboratoryTier B+tested
- Purity
- 98.78%
- Price per mg
- $29.50$59.00 / 2mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.35%
- Price per mg
- $4.90$49.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $4.97$199.00 / 40mgbest of 3 sizes
- Purity
- —
- Price per mg
- $4.50$45.00 / 10mg
- Purity
- —
- Price per mg
- $13.80$69.00 / 5mg
- Purity
- —
- Price per mg
- $15.80$79.00 / 5mg
- Purity
- —
- Price per mg
- $4.90$49.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.8%
- Price per mg
- $5.90$59.00 / 10mg
Vanguard LaboratoryTier B+tested
- Purity
- 98.51%
- Price per mg
- $6.45$129.00 / 20mgbest of 2 sizes
- Purity
- —
- Price per mg
- $1.95$39.00 / 20mg
Vanguard LaboratoryTier B+tested
- Purity
- 99.1%
- Price per mg
- $7.90$79.00 / 10mg
- Purity
- —
- Price per mL
- $0.53$16.00 / 30 mL
Learn more about what Hello Stacks carries
Hello Stacks: Frequently Asked Questions
Is Hello Stacks legit?
Hello Stacks scores 6.08 out of 10 (Fair, #59 of 100) as of November 6, 2026 and passes our testing gate: 21 of the 33 products we score carry a certificate, 21 confirmed with the issuing lab (a lab we grade B+). Its strongest area is pricing (7.5/10); its weakest is operating history (1.3/10), with about six months of records.
Is there a Hello Stacks promo code, coupon code, or discount code?
Yes. Hello Stacks issued us the reader code PSR25 for 25% off. Enter this Hello Stacks promo code at checkout to claim the discount. Exclusions: Bacteriostatic water is excluded. If it stops working at checkout, tell us and we will update or remove it.
Does Hello Stacks use third-party lab testing?
Yes. We have independently verified third-party COA evidence for this vendor. Laboratories on the certificates we hold: Vanguard Laboratory.
Where can I see Hello Stacks' COAs?
In the "Hello Stacks COAs and lab test results" table on this page. We hold 21 certificates for Hello Stacks, covering 21 of the 34 products we track, issued by Vanguard Laboratory. 21 products' certificates were confirmed at the issuing laboratory itself. Each row links the certificate, its lab, its test date and the purity it reports.
What peptides does Hello Stacks carry?
Hello Stacks carries 5-Amino-1MQ, AOD-9604, BPC-157, BPC-157 + TB-500, Cagrilintide, CJC-1295, CJC-1295 + Ipamorelin, DSIP, and 26 more. Current per-milligram pricing, COA links, and verification keys for each are in the comparison table on this page.
Is the Hello Stacks review on Peptide Source Review affected by affiliate status?
No. All affiliate relationships are publicly disclosed and never change a vendor's score, rank, or gate status. Our scoring formula is published in full and applied identically to every vendor.
Want to understand how this score was built?
Read the full methodology or the editorial integrity policy. Disclosure: the link below is an affiliate link; it never affects the score.
Hello Stacks6.08Fair
21 confirmed at the labAffiliate link