Is Stillwater BioLabs legit?

Stillwater BioLabs is a research-peptide vendor tracked in the Stacked directory, holding an independent Stacked Score of 71/100. Our score weighs third-party testing, reputation, transparency, and shipping — see the full breakdown above. No FDA warning letters are on record for Stillwater BioLabs as of our last review.

Does Stillwater BioLabs ship internationally?

Stillwater BioLabs ships within the US. Typical domestic delivery runs FREE US shipping over $200. Ships via UPS from cold storage. Day-shipping fulfillment from a single Oklahoma facility. US only.. Tracking is provided. Confirm current shipping terms on the vendor's site before ordering.

Has Stillwater BioLabs received any FDA warning letters?

No FDA warning letters are on record for Stillwater BioLabs as of our last review. We surface any that appear on the vendor profile.

Vanguard Lab UKAS ISO/IEC 17025:2017 accredited HPLC testing with ≥99% purity guaranteeVendor profile

Stillwater BioLabs

Item: Stillwater BioLabs
Rating: 3.6
Author: Stacked

stillwaterbiolabs.com ↗

Vanguard Lab UKAS ISO/IEC 17025:2017 accredited HPLC testing with ≥99% purity guaranteePublic per-batch COA library accessible by direct URLDeep GIP3 / Retatrutide tiering (10/15/20/30mg single vials)Pre-mixed hero blends (BPC/TB, CJC/Ipa, Tesa/Ipa, Glow) including a $290 premium Glow BlendVeteran-owned operational footprint (Stillwater, Oklahoma)Niche compounds — Cagrilintide, ARA-290, Kisspeptin-10, SS-31 (Elamipretide), 5-Amino-1MQ, VIP — alongside the standard injectable lineup

Stacked Score

/ 100Strong

Low confidenceUpdated 6h agoMethodology →

Stillwater BioLabs is a recognized vendor with a public per-batch COA library and uses an independent peptide-testing lab for purity validation. They offer 26 products and accept credit card payments only. However, there is no available community feedback on platforms like Reddit or Trustpilot, which limits the assessment of their reputation and service quality.

Stacked partner offer · 10% off your order

STACKED

All codes →

Score Breakdown

Purity Testing20%
95/100
Community Reputation15%
62/100
FDA / Regulatory13%
85/100
Shipping & Fulfillment12%
60/100
Payment Security10%
60/100
Customer Service10%
60/100
Catalog Depth10%
70/100
Price Competitiveness10%
60/100

Evidence

Pros & Cons

Pros

Vanguard Lab UKAS ISO/IEC 17025:2017 accredited HPLC testing on every batch (peptide-specialized accredited lab, same tier as Chromate / Freedom / BioViridian) — ≥99% chromatographic purity guarantee
Public per-batch COA library — every batch's certificate accessible by direct URL at /coa/<slug>-<batch>.pdf (e.g. gip3-retatrutide-V260212-5.pdf), with the Vanguard batch number on the file
Veteran-owned, Stillwater Oklahoma based — adds operational accountability beyond a typical anonymous research-peptide vendor
Polished Next.js storefront with structured JSON-LD product data on every page (clean, fast, conversion-tuned)
Deep GIP3 (Retatrutide / triple-agonist GLP-1+GIP+glucagon) tiering at 10/15/20/30mg single vials — wider sizing flexibility than most peers' Retatrutide lines
Pre-mixed hero blends — BPC-157+TB-500 (5/5 + 10/10), CJC-1295+Ipamorelin (5/5), Tesamorelin+Ipamorelin (5/5 + 10/5), Glow (10+10+50 BPC/TB/GHK)
Free US shipping over $200, ships via UPS from cold storage
Customer code 'STACKED' applies 10% off at checkout

Cons

Per-batch COA PDFs are accessible by direct URL rather than indexed on a single COA library page
No Tirzepatide or Semaglutide in catalog — Retatrutide via GIP3 is the only GLP-class option
Credit/debit cards only (Visa/Mastercard/Amex) — no crypto, Zelle, or ACH for customers
US-only shipping

Specialties

Payment Methods

Credit card

Shipping

Domestic: FREE US shipping over $200. Ships via UPS from cold storage. Day-shipping fulfillment from a single Oklahoma facility. US only.
International: No
Tracking: Yes
Carriers: —

Testing Methodology

Every batch HPLC-UV/VIS tested by Vanguard Lab (peptide-specialized testing operation, UKAS ISO/IEC 17025:2017 accredited per inspected COA PDF metadata). Chromatographic purity threshold ≥99%; quantity verified against labeled fill weight. Full chromatogram trace + signed lab report bundled with each batch's COA. Per-batch certificates accessible by direct URL at /coa/<slug>-<batch>-<size>.pdf — e.g. gip3-retatrutide-V260212-5.pdf for batch V260212-5 of GIP3 5mg.

FDA Warning History

No FDA warning letters on record.

Product Catalog

Every product we track from Stillwater BioLabs, linked to its peptide research profile. Prices refreshed periodically — verify on the vendor site before ordering.

5-Amino-1MQ
5-Amino-1MQ 5mg
Size5 mg
Price$49.00
/ mg$9.80
In stockView
AOD-9604
AOD-9604 5mg
Size5 mg
Price$45.00
/ mg$9.00
In stockView
ARA-290
ARA-290 10mg
Size10 mg
Price$69.00
/ mg$6.90
In stockView
BPC-157
BPC-157 10mg
Size10 mg
Price$85.00
/ mg$8.50
In stockView
CJC-1295 (without DAC)
CJC-1295 (No DAC) 10mg
Size10 mg
Price$69.00
/ mg$6.90
In stockView
Cagrilintide
Cagrilintide 10mg
Size10 mg
Price$129.00
/ mg$12.90
In stockView
DSIP
DSIP 5mg
Size5 mg
Price$45.00
/ mg$9.00
In stockView
Epithalon
Epithalon 50mg
Size50 mg
Price$169.00
/ mg$3.38
In stockView
GHK-Cu
GHK-Cu 100mg
Size100 mg
Price$99.00
/ mg$0.99
In stockView
Ipamorelin
Ipamorelin 10mg
Size10 mg
Price$69.00
/ mg$6.90
In stockView
KPV
KPV 10mg
Size10 mg
Price$89.00
/ mg$8.90
In stockView
Kisspeptin-10
Kisspeptin-10 5mg
Size5 mg
Price$59.00
/ mg$11.80
In stockView
MOTS-c
MOTS-c 40mg
Size40 mg
Price$259.00
/ mg$6.48
In stockView
NAD+
NAD+ 500mg
Size500 mg
Price$139.00
/ mg$0.28
In stockView
Oxytocin
Oxytocin 5mg
Size5 mg
Price$49.00
/ mg$9.80
In stockView
PT-141
PT-141 10mg
Size10 mg
Price$55.00
/ mg$5.50
In stockView
Retatrutide
GIP3 30mg (Retatrutide)
Size30 mg
Price$219.00
/ mg$7.30
In stockView
SS-31
SS-31 (Elamipretide) 50mg
Size50 mg
Price$379.00
/ mg$7.58
In stockView
Selank
Selank 10mg
Size10 mg
Price$69.00
/ mg$6.90
In stockView
Semax
Semax 5mg
Size5 mg
Price$39.00
/ mg$7.80
In stockView
Sermorelin Acetate
Sermorelin 10mg
Size10 mg
Price$79.00
/ mg$7.90
In stockView
TB-500
TB-500 10mg
Size10 mg
Price$109.00
/ mg$10.90
In stockView
Tesamorelin
Tesamorelin 10mg
Size10 mg
Price$129.00
/ mg$12.90
In stockView
Thymalin
Thymalin 10mg
Size10 mg
Price$69.00
/ mg$6.90
In stockView
Thymosin Alpha-1
Thymosin Alpha-1 10mg
Size10 mg
Price$119.00
/ mg$11.90
In stockView
VIP
VIP 10mg
Size10 mg
Price$99.00
/ mg$9.90
In stockView

Stillwater BioLabs — Frequently Asked

Is Stillwater BioLabs legit?: Stillwater BioLabs is a research-peptide vendor tracked in the Stacked directory, holding an independent Stacked Score of 71/100. Our score weighs third-party testing, reputation, transparency, and shipping — see the full breakdown above. No FDA warning letters are on record for Stillwater BioLabs as of our last review.
What is Stillwater BioLabs's Stacked Score?: Stillwater BioLabs holds a Stacked Score of 71/100. Stillwater BioLabs is a recognized vendor with a public per-batch COA library and uses an independent peptide-testing lab for purity validation. They offer 26 products and accept credit card payments only. However, there is no available community feedback on platforms like Reddit or Trustpilot, which limits the assessment of their reputation and service quality. The score is editorial and independent of our affiliate relationship.
Does Stillwater BioLabs third-party test its peptides?: Every batch HPLC-UV/VIS tested by Vanguard Lab (peptide-specialized testing operation, UKAS ISO/IEC 17025:2017 accredited per inspected COA PDF metadata). Chromatographic purity threshold ≥99%; quantity verified against labeled fill weight. Full chromatogram trace + signed lab report bundled with each batch's COA. Per-batch certificates accessible by direct URL at /coa/<slug>-<batch>-<size>.pdf —
Does Stillwater BioLabs ship internationally?: Stillwater BioLabs ships within the US. Typical domestic delivery runs FREE US shipping over $200. Ships via UPS from cold storage. Day-shipping fulfillment from a single Oklahoma facility. US only.. Tracking is provided. Confirm current shipping terms on the vendor's site before ordering.
Has Stillwater BioLabs received any FDA warning letters?: No FDA warning letters are on record for Stillwater BioLabs as of our last review. We surface any that appear on the vendor profile.

Affiliate Disclosure

Disclosure

Stacked earns a commission on purchases via affiliate links on this page. This does not influence our Stacked Score methodology.