> Supplier notice (updated September 25, 2026): Peptide Supply Group has exited the research-peptide market. Between September 24 and 25, 2026, peptidesupplygroup.com was rebuilt as a physician-prescribed telehealth service offering "peptide therapy & weight loss treatments" compounded by a 503A pharmacy partner. Its research-peptide catalog is gone and every product page we tracked now returns "Page Not Found." Because the new business sells prescription medications rather than research-use-only reagents, it falls outside what Peptides.SO compares, and Peptide Supply Group's 36 listings have been removed from our price comparison. The review below is preserved as a historical record; to compare suppliers that are currently active, see our supplier directory.
> Research Use Only Disclaimer: All products discussed in this article are sold strictly for laboratory research and scientific purposes. They are not approved for human consumption, clinical use, or veterinary application. Always consult applicable regulations before handling research compounds.
Peptide Supply Group, operating at peptidesupplygroup.com, is a research compound supplier with 36 active listings tracked on Peptides.SO, built around a distinctive catalog pattern: nearly every core GLP receptor compound is offered across multiple vial sizes and bundle configurations rather than a single fixed format. For researchers running a program that scales from feasibility testing to sustained supply, that size ladder is the vendor's defining feature.
What Peptides.SO Could Verify
Peptide Supply Group has 36 active listings across eight catalog categories, all currently marked in stock. The GLP receptor agonist segment dominates the catalog with 16 listings — nearly half the total — ranging from $12 to $220 per listing with an average price of roughly $49. Cosmetic peptides (6 listings, $1.10–$3.00), healing/recovery (5 listings, $1.00–$15.50), and growth peptides (5 listings, $10–$15) round out the remaining categories. The supplier holds no verified badge on Peptides.SO and has no accumulated platform rating data.
GLP Compound Depth Across Every Vial Size
The GLP segment is where Peptide Supply Group differentiates itself. Semaglutide is available in both a 5mg mini-bundle and a 10mg bulk-order format. Retatrutide (listed as GLP-3) is carried across four distinct configurations — 10mg individual vials, a 22mg 10-vial pack, a 60mg high-volume format, and a 10mg mini-bundle — giving researchers a genuine choice between small initial-study quantities and sustained-program bulk supply within a single compound line. Cagrilintide is listed at 10mg for amylin-receptor-agonist research, and a compact "Reta 10mg" configuration provides a lower-cost entry point for researchers testing feasibility before committing to a larger order.
This size-ladder approach — designing the catalog around the lifecycle of a research program rather than a single default vial size — is not universal in this market; several suppliers in this batch carry only one or two format options per compound.
Verified Pricing
Live per-mg pricing, cross-checked against affiliate URLs to exclude blend listings, shows Peptide Supply Group competitive on several standard compounds: GHK-Cu ranges from $1.10/mg at the 100mg-vial tier to $3.00/mg at the 10mg tier — a meaningful bulk discount at scale, and among the more competitive GHK-Cu ladders tracked on the platform in non-blend form. BPC-157 runs $10.00/mg, as does CJC-1295 in both DAC and No-DAC forms and Sermorelin. Ipamorelin runs $11.00/mg, and TB-500 runs $14.00/mg.
Tissue Repair, Longevity, and Growth Hormone Coverage
Beyond the GLP-1 focus, the catalog covers named tissue-repair blends — KLOW (80mg, BPC-157/TB-500/KPV) and the Wolverine Blend (BPC-157/TB-500, 10mg/10mg) — for researchers studying combination healing-compound biology. NAD+ is available in a 500mg × 10-vial (5,000mg total) format, a substantial supply size aimed at extended mitochondrial and sirtuin-biology research programs rather than a single trial. GHK-Cu itself is listed in both a 100mg × 10-vial bulk format and a monthly subscription option, and MOTS-c is available for mitochondrial and insulin-sensitivity research.
Checkout and Compliance
The supplier's own site includes a dedicated COA navigation page, though specific testing methodology (HPLC, mass spectrometry) is not detailed on the public-facing pages Peptides.SO reviewed. Payment options displayed on-site include Venmo, Zelle, and cryptocurrency — standard for this market, though these carry fewer buyer protections than card processing. The site carries the standard FD&C Act disclaimer distinguishing itself as a chemical supplier rather than a 503A/503B compounding entity, and states products are prohibited for human or animal consumption.
Pricing Position
Against the broader field of GLP-focused suppliers, Peptide Supply Group's $1.10–$3.00/mg GHK-Cu ladder and $10–$14/mg range on BPC-157, CJC-1295, and TB-500 sit toward the competitive end for standard-format, non-blend listings. Researchers can compare current prices directly on the supplier profile or plan a multi-compound protocol with the peptide reconstitution calculator before ordering.
Pros and Cons
| Pros | Cons |
|---|---|
| Retatrutide available in four distinct size/bundle formats | No verified badge or platform rating history |
| Competitive GHK-Cu bulk-tier pricing ($1.10–$3.00/mg) | Testing methodology (HPLC/mass spec) not detailed on-site |
| 5,000mg bulk NAD+ format for extended research programs | Payment limited to Venmo/Zelle/crypto — no card processing shown |
| Standard $10–$14/mg pricing across BPC-157, CJC-1295, TB-500 | Catalog outside GLP and healing segments is comparatively thin (36 total listings) |
| Named healing blends (KLOW, Wolverine) alongside standalone compounds |
Verdict
Peptide Supply Group's core strength is straightforward: it treats GLP receptor research compounds as a product line to be scaled, not a single SKU. The four-format Retatrutide ladder and bulk NAD+/GHK-Cu options make it a sensible choice for researchers who expect their compound needs to grow past an initial feasibility study, and the verified per-mg pricing on BPC-157, CJC-1295, and GHK-Cu is competitive against the broader market. The tradeoff is a catalog that's narrower outside the GLP and healing segments, and a checkout process that leans on Venmo/Zelle/crypto rather than card payment — worth weighing for researchers who prioritize buyer-protected payment methods on a first order.
All products are for laboratory research purposes only. Not for human consumption.
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Live Pricing Table: Peptide Supply Group (September 2026)
The following prices are sourced directly from Peptide Supply Group's verified Peptides.SO listings. All prices are per milligram (mg) for lyophilized research-grade material unless otherwise noted.
| Compound | Format | Total Price | $/mg | Category |
|---|---|---|---|---|
| GHK-Cu | 100mg × 10-vial bulk (1,000mg total) | $95 | $1.10/mg | Cosmetic/longevity |
| GHK-Cu | Monthly subscription (65mg) | $65 | $1.50/mg | Cosmetic/longevity |
| KLOW (BPC-157/TB-500/KPV) | 80mg blend | $87 | $1.38/mg | Healing/recovery |
| Retatrutide (GLP-3) | 22mg × 10-vial pack (220mg) | $490 | $12.00/mg | GLP metabolic |
| Retatrutide (GLP-3) | 22mg × 10-vial pack | $370 | $17.33/mg | GLP metabolic |
| Retatrutide (GLP-3) | 22mg single | $150 | $28.00/mg | GLP metabolic |
| Retatrutide (GLP-3) | 60mg format | $125 | $29.00/mg | GLP metabolic |
| Wolverine Blend (BPC-157/TB-500) | 10mg/10mg | $105 | $15.50/mg | Healing blend |
| Semaglutide | Multi-compound bundle (8.79mg) | $145 | $16.50/mg | GLP metabolic |
| Semaglutide | 4.26mg format | $115 | $27.00/mg | GLP metabolic |
| Semaglutide | Mini-Bundle 10mg | $420 | $45.00/mg | GLP metabolic |
GHK-Cu pricing note: Peptide Supply Group's $1.10/mg bulk-tier GHK-Cu (100mg × 10-vial, $95 total) is among the lowest per-mg rates for GHK-Cu tracked on the platform in non-blend form. This is a meaningful data point for cosmetic or longevity researchers sourcing large quantities. The $1.50/mg monthly subscription format is the next-lowest entry point.
Retatrutide depth: The four-format ladder (10mg individual → 22mg 10-vial → 60mg → 22mg mini-bundle) is the defining catalog feature. Researchers can move from feasibility testing ($150 for 22mg) to bulk supply ($490 for 220mg) within a single supplier relationship.
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Frequently Asked Questions: Peptide Supply Group
Q: How does Peptide Supply Group's GHK-Cu pricing compare to other suppliers on Peptides.SO?
A: The $1.10/mg rate at the 1,000mg (10-vial, 100mg each) tier is competitive versus the typical platform range of $1–$71/mg across 43 indexed GHK-Cu listings. Most suppliers price GHK-Cu at $2–$15/mg at research lot sizes (5–50mg); the $1.10/mg bulk rate from Peptide Supply Group reflects the 1,000mg commitment, which is at the large end of what this market offers in non-blend form. For researchers sourcing continuously at that volume, it's one of the better-structured GHK-Cu options tracked.
Q: What is the KLOW blend, and what research applications does it serve?
A: KLOW combines BPC-157, TB-500, and KPV in a single pre-formulated vial. BPC-157 (Body Protection Compound, 15 amino acids) studies gastrointestinal repair, angiogenesis, and tendon healing. TB-500 (Thymosin Beta-4 fragment) studies actin modulation, wound healing, and anti-inflammatory signaling. KPV (Lys-Pro-Val) is the C-terminal tripeptide of alpha-MSH, studied for intestinal epithelial repair and anti-inflammatory effects. The combination format is designed for researchers studying multi-pathway healing biology; researchers who need custom ratios between the three compounds should use standalone vials rather than pre-formulated blends. See: BPC-157 | TB-500 | KPV
Q: Does Peptide Supply Group provide COAs for its compounds?
A: The supplier's site includes a dedicated COA navigation page. Specific testing methodology — whether HPLC purity percentage, mass spectrometry confirmation, endotoxin testing, or third-party verification — is not detailed on the public-facing pages Peptides.SO reviewed. Researchers should request batch-specific COA documentation directly from the supplier before ordering, particularly for complex compounds like the KLOW blend and Retatrutide, where synthesis quality is harder to verify from HPLC alone.
Q: What payment methods does Peptide Supply Group accept?
A: The site displays Venmo, Zelle, and cryptocurrency options. These payment methods carry fewer buyer protections than credit card or card-processor transactions; researchers making a first-order should factor this into their due diligence.
Q: Is Peptide Supply Group verified on Peptides.SO?
A: Peptide Supply Group holds no verified badge on Peptides.SO and has no accumulated platform rating data as of this review. The lack of a verified badge means Peptides.SO has not independently authenticated their COA documentation or testing standards. Use the supplier profile for current listing data.
Q: How does Retatrutide's per-mg cost at Peptide Supply Group compare across the platform?
A: At $12/mg (10-vial, 22mg pack), Peptide Supply Group is competitive for Retatrutide — platform tracking shows the compound ranging from $5.70/mg (HK Peptides Worldwide, bulk 56mg) to $175/mg at small-quantity premium suppliers. The $12/mg rate puts Peptide Supply Group in the mid-competitive tier, below HK/Planet Peptide's bulk-tier pricing but well below the premium US-domestic suppliers. The 10-vial format also ensures consistent lot-to-lot conditions for multi-arm protocols. See: Retatrutide Research Profile
> All compounds listed are for research use only. Not for human or animal consumption. Research Use Only.