Planet Peptide Review 2026: Metabolic Research Focus, Bulk GLP-1 Options, and a 61-Listing Catalog

# Planet Peptide Review 2026: Metabolic Research Focus, Bulk GLP-1 Options, and a 61-Listing Catalog

Planet Peptide is a consistently searched research peptide supplier driven by a stated mission around metabolic and neuropeptide research. The company has built a 61-listing catalog with notable depth in GLP-1 agonists and bulk purchasing formats. This review is based on listing data from our platform as of August 2026, cross-referenced against live pricing from the Planet Peptide website.

All compounds discussed here are for laboratory and preclinical research purposes only.

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Company Background

Planet Peptide describes its mission as advancing research in metabolic and neuropeptide areas, with stated commitments to transparency, integrity, and quality. The company differentiates from generic catalog suppliers by centering its positioning on specific research verticals rather than maximum SKU breadth.

Planet Peptide is currently an unlisted supplier on our platform. This review reflects catalog and pricing data as of August 2026.

Unlike many research peptide suppliers that simply list as many compounds as possible, Planet Peptide's approach centers on a curated catalog — 61 listings across eight distinct compound categories. That number is not small, but it is also not the 200+ SKU approach taken by some competitors. The focus appears deliberate: depth in metabolic peptides, specifically GLP-1 agonists, is a clear commercial and research priority.

The company appears to ship from within the United States based on available information. For US-based research programs, this is a practical advantage over offshore suppliers where transit times and customs uncertainty can complicate ordering logistics.

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Catalog Overview: 61 Listings Across Eight Research Categories

Planet Peptide's 61-listing catalog breaks down across the following compound categories based on data pulled directly from our platform:

GLP-1 Agonists and Metabolic Peptides (Core Category)

This is the catalog's clear strength. Planet Peptide carries four of the most actively researched GLP-1 and dual/triple agonist compounds:

Semaglutide — GLP-1 receptor agonist; first approved for T2DM (Ozempic) and obesity (Wegovy). Available in individual 10mg format ($70) and a 10-vial bulk format at $500. At $7/mg for the individual vial, pricing is competitive among the 21 suppliers on our platform that carry semaglutide.

Tirzepatide — GLP-1/GIP dual agonist; approved as Mounjaro. This is the most extensively stocked compound in Planet Peptide's catalog, with five separate listing variants: individual 10mg ($70), 30mg ($125), 60mg RUO format ($180), and bulk 5-unit ($500), 10-unit ($950), and multi-vial ($1,300) formats. The 60mg RUO format and the multi-vial bulk bundle are significant for multi-subject or longitudinal study designs.

Retatrutide — GLP-1/GIP/glucagon triple agonist; currently in Phase 3 clinical trials. Planet Peptide carries four variants: 10mg individual ($80), 20mg individual ($129), and two bulk formats at $650 (10-vial) and $950 (10 x 20mg). Retatrutide is available from only 27 suppliers on our platform — far fewer than semaglutide or tirzepatide — so multi-format coverage here is particularly notable.

Cagrilintide — Amylin/CGRP receptor agonist; used in combination with semaglutide in the REDEFINE clinical trial program. Individual 10mg ($80) and a 10-vial bulk format ($650). Cagrilintide is one of the harder-to-source compounds in the GLP-1 research space. Its inclusion reflects Planet Peptide's commitment to advanced metabolic research beyond the mainstream agonist compounds.

5-Amino-1MQ — A small molecule NNMT inhibitor with metabolic and fat-oxidation research applications. Available at $75/vial.

Healing and Recovery Peptides

BPC-157 — Body protection compound. Multiple variants: 10mg individual ($37 solo, $60 in combo formulas), 20mg ($60), and a 10-vial bulk format ($350 for 10 x 10mg). Also available in combination blends with TB-500, and in a quad-compound formula with TB-500 + KPV + GHK-Cu.

TB-500 (Thymosin Beta-4) — Available as 10mg individual ($55) and a 10-vial bulk format ($500). Also listed as a component in several combination products alongside BPC-157.

KPV — Tripeptide (Lys-Pro-Val) with intestinal and anti-inflammatory research applications. 10mg format at $75.

LL-37 — Human cathelicidin antimicrobial peptide. 10mg format at $55.

Thymosin Alpha-1 — Immune-modulating peptide with research applications in immune function. 10mg format at $65.

Neuropeptides and Cognitive Research Compounds

Selank — Anxiolytic enkephalin analog developed by the Russian Institute of Molecular Genetics. Individual 10mg ($45) and a 10-vial bulk format ($325). At $32.50/vial in bulk, this is a meaningful reduction from the individual price.

Semax — ACTH 4-10 analog with neurotrophic and neuroprotective activity. Individual 10mg ($40) and a 10-vial bulk format ($350).

DSIP — Delta sleep-inducing peptide; researched for sleep regulation and neuroendocrine activity. 5mg format at $50.

Pinealon — Epigenetic neuropeptide bioregulator derived from pineal gland tissue. 20mg format at $75.

Growth Hormone Secretagogues and GH Axis Peptides

Tesamorelin — FDA-approved GHRH analog (Egrifta); researched for HIV-associated lipodystrophy and metabolic/cognitive applications. Individual 10mg ($65), 20mg ($85), and a 10-vial bulk format at $475. Tesamorelin's FDA approval status is a meaningful quality benchmark relative to non-approved GHRH analogs.

MOTS-c — Mitochondrial-derived peptide regulating metabolic homeostasis. Individual 10mg ($55), 20mg ($85), and a 10-vial bulk format ($375 for 10 x 10mg).

CJC-1295 No DAC 5mg — GHRH analog without drug-affinity complex. Individual format ($60) and 10-vial bulk ($550 for 10 x 5mg).

Ipamorelin — GHRP and ghrelin receptor agonist; primarily available via combination products and a standalone 10-vial bulk at $400 (for 10 x 5mg vials).

TESA/IPA 10mg/3mg Blend — Fixed-dose tesamorelin/ipamorelin combination at $60.

CJC-no DAC/Ipamorelin 5mg/5mg Blend — Fixed-dose combination at $60.

Anti-Aging and Bioregulator Peptides

Epithalon (Epitalon) — Tetrapeptide bioregulator (Ala-Glu-Asp-Gly) derived from pineal extracts. 10mg format at $40. Among the lowest-priced anti-aging peptides in the catalog.

NAD+ — Nicotinamide adenine dinucleotide; researched for cellular energy metabolism and longevity pathways. Individual 160mg vial ($75) and a 10-vial bulk at $600 (for 500mg x 10 vials).

L-Glutathione — Master endogenous antioxidant. 1500mg format at $75.

Prostamax — Prostate tissue bioregulator peptide. 20mg format at $75.

Cosmetic and Dermatological Peptides

GHK-Cu (Copper Peptide) — Collagen synthesis, wound healing, and anti-inflammatory research applications. Individual 100mg ($50) and a 10-vial bulk at $375 (for 50mg x 10 vials). The large individual vial size (100mg) is notably generous for cosmetic research.

SNAP-8 — Acetyl Glutamyl Heptapeptide-3; muscle contraction inhibitor researched as a wrinkle reduction analog. Individual 10mg ($40) and 10-vial bulk ($275 for 10 x 10mg).

Melanotan I — Alpha-MSH analog studied for photoprotection and tanning. 10mg format at $50.

Sexual Health Research

PT-141 (Bremelanotide/Vyleesi) — FDA-approved for hypoactive sexual desire disorder in women (Vyleesi, 2019). Research-grade available at $45/1mg. This is one of the only FDA-approved compounds in the catalog outside of the GLP-1 and tesamorelin listings, which is notable from a regulatory standpoint.

Additional Small Molecules

AOD-9604 — Growth hormone fragment (hGH 176-191); researched for adipose tissue metabolism. 10mg format at $50.

PNC-27 — Peptide with anticancer research activity. 30mg format at $150.

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Bulk Format Availability: A Structural Differentiator

Planet Peptide's most commercially distinctive feature is the breadth of 10-vial bulk bundles across multiple compound categories. Not all research peptide suppliers offer these multi-vial formats; Planet Peptide offers them across at least 16 compounds:

For laboratories running longitudinal or multi-subject research, consolidating bulk orders from a single supplier reduces administrative overhead and lowers per-unit cost. The tirzepatide 30mg bulk at $95/vial in the 10-unit format is particularly useful for dosing schedules that require larger per-vial quantities.

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Pricing Analysis: Where Planet Peptide Sits in the Market

Planet Peptide occupies mid-tier pricing for individual unit purchases. The value proposition strengthens considerably in bulk formats for compounds with meaningful per-vial discounts.

Individual Unit Pricing vs. Platform Market Range

Market ranges include all suppliers on our platform. The low end often includes suppliers with unverified quality. Meaningful comparison should focus on mid-tier verified or reviewed suppliers.

For GLP-1 agonists specifically — where only 20-21 suppliers carry semaglutide or tirzepatide on our platform — Planet Peptide's $70 pricing is within the competitive range. Price competition is less severe for these compounds than for common peptides like selank or semax (90+ suppliers each).

The mid-market positioning means Planet Peptide is not the cheapest option for individual vials of common compounds. Budget-focused purchasers who prioritize lowest unit price over catalog breadth or bulk access can find lower prices. The trade-off is typically less certainty about supplier stability, documentation practices, and quality consistency.

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Quality Signals: What Researchers Need to Know

Planet Peptide has not been independently verified through our platform's supplier verification process as of this writing. Researchers should apply standard procurement due diligence.

COA Availability

Planet Peptide lists quality commitments on their website. Researchers should request batch-specific Certificates of Analysis before placing orders. Industry standard is a batch COA from an independent laboratory, showing HPLC purity results and, where applicable, mass spectrometry identity confirmation. A sample COA or a reference document not tied to the specific batch being purchased is not a substitute.

If a supplier declines to provide a batch-specific COA from a named third-party laboratory, that is a meaningful quality signal and a reason to proceed with caution.

Third-Party Testing

We have not independently confirmed whether Planet Peptide uses third-party testing for purity and identity verification. Best-in-class research peptide suppliers use independent HPLC and mass spectrometry testing, with results available per batch from a named laboratory. Researchers purchasing for preclinical or non-clinical research applications should clarify this before procurement.

Sterility and Endotoxin Testing

For injectable research compounds, sterility testing and endotoxin (LAL) testing are critical quality requirements distinct from purity testing. Endotoxin contamination can invalidate in vivo research results independent of peptide purity. Research programs should confirm whether Planet Peptide's products include endotoxin testing documentation for the specific batch being ordered.

Purity Standards

Industry standard for research-grade peptides is ≥98% purity by HPLC. For GLP-1 agonists specifically — where synthesis complexity increases impurity risk — verify that the COA includes an impurity profile, not only a single purity percentage. Impurity profiling identifies specific degradation products and synthetic byproducts, which is relevant for research applications where off-target activity is a confound.

Storage Conditions

Research peptides are typically supplied as lyophilized (freeze-dried) powder. Proper cold chain during shipping and storage is essential for product integrity. Researchers should confirm Planet Peptide's cold chain protocols for shipped orders, particularly for warm-weather shipping months.

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Catalog Breadth vs. Depth: A Structural Analysis

Planet Peptide's 61-listing catalog is structured differently from high-breadth suppliers:

High-breadth suppliers (150-250+ SKUs) carry wide compound diversity but often with limited format options per compound. One size, one price point per compound is common.

Format-depth suppliers (40-80 SKUs) like Planet Peptide prioritize multiple format options per compound: individual vials in different quantities, plus bulk bundles. The 61-listing count is achieved through format depth, not compound breadth.

Within Planet Peptide's 61 listings, the unique compound count is approximately 25-30 distinct molecules. Tirzepatide alone accounts for 5 listings. BPC-157 appears in at least 6 listings (solo, multiple combo variants, bulk). This means researchers are getting deep optionality on the compounds Planet Peptide does carry.

Category coverage summary:

• •GLP-1 / Metabolic: 12+ listings (5 compounds)
• •Healing/Recovery: 10+ listings (BPC-157 variants, TB-500, KPV, LL-37, Thymosin Alpha-1)
• •GH Axis / Secretagogues: 8+ listings (Tesamorelin, MOTS-c, CJC-1295, Ipamorelin, blends)
• •Neuropeptides: 6 listings (Selank, Semax, DSIP, Pinealon — individual + bulk)
• •Anti-aging / Bioregulators: 6 listings (Epithalon, NAD+, L-Glutathione, Prostamax)
• •Cosmetic: 5 listings (GHK-Cu, SNAP-8, Melanotan I)
• •Sexual health: 1 listing (PT-141)
• •Small molecules: 3 listings (AOD-9604, PNC-27, 5-Amino-1MQ)

For researchers who need a single-vendor source for metabolic + neuropeptide + recovery compounds, this structure works well. Researchers needing rare or highly specialized compounds — exosomes, specific hormones, exotic research chemicals — will likely need to supplement from other sources.

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Shipping and Fulfillment

Domestic shipping: Planet Peptide appears to ship within the United States. For temperature-sensitive compounds (particularly lyophilized GLP-1 peptides during warm-weather months), shipping speed and insulated packaging matter for product integrity. Researchers should confirm whether Planet Peptide includes cold packs or uses insulated packaging for temperature-sensitive compounds.

Discretion: Standard research peptide supplier practice. Planet Peptide appears to follow this convention based on available information.

International availability: Not confirmed. Researchers outside the US should verify directly before ordering.

Order minimums: Not clearly stated. Bulk format orders ($275-$1,300) represent the minimum commitment for those tiers. Individual vials can be ordered without apparent minimums.

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Payment Options

Planet Peptide accepts credit card payments — a meaningful differentiator in the research peptide market. Many suppliers have been dropped by payment processors and now operate cryptocurrency-only or require wire transfer. Credit card acceptance provides researchers with standard payment protection and dispute resolution options.

Payment options (per available information):

• •Credit card
• •Additional methods may be available (confirm at checkout)

For institutional research programs with purchase order or invoice requirements, contact Planet Peptide directly to confirm procurement options before committing to an order.

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Planet Peptide vs. Comparable Suppliers

Planet Peptide's strongest competitive position is the combination of broad GLP-1 agonist coverage (four compounds), multi-format bulk options across those compounds, and credit card acceptance. These three features together are uncommon in a single supplier.

The primary weakness versus verified competitors is the lack of independently confirmed COA and testing documentation. Researchers should treat this as a due diligence step, not a disqualifier.

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Pros and Cons

Pros:

Cons:

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FAQ

What GLP-1 peptides does Planet Peptide carry?

Planet Peptide carries four core GLP-1-axis compounds: Semaglutide (GLP-1 receptor agonist), Tirzepatide (GLP-1/GIP dual agonist), Retatrutide (GLP-1/GIP/glucagon triple agonist), and Cagrilintide (amylin/CGRP receptor agonist). All four are available in individual and bulk formats, making this one of the more complete GLP-1 research catalogs on our platform as of August 2026.

Does Planet Peptide offer bulk pricing?

Yes. Planet Peptide offers 10-vial bulk bundles for at least 16 compounds, including Tirzepatide (three separate bulk formats), Retatrutide, Semaglutide, Cagrilintide, Tesamorelin, MOTS-c, CJC-1295 No DAC, Ipamorelin, Selank, Semax, GHK-Cu, SNAP-8, NAD+, and TB-500. Bulk discounts range from approximately 9% to 34% versus individual unit pricing, with the strongest discounts on tirzepatide 30mg and retatrutide 20mg.

Does Planet Peptide accept credit cards?

Yes. Credit card is listed as an accepted payment method. This is less common among research peptide suppliers, many of whom have been dropped by payment processors and now operate cryptocurrency-only or wire-transfer-only. Credit card acceptance provides standard dispute protection that cryptocurrency payments do not.

Does Planet Peptide provide COAs?

Planet Peptide states quality commitments on their website. We have not independently confirmed the process for obtaining batch-specific COAs from a named third-party laboratory. Researchers should explicitly request a batch COA — not a sample or reference document — before completing purchase. The COA should include HPLC purity results, ideally with an impurity profile, and should be attributable to the specific lot you are ordering.

What is Planet Peptide's shipping policy?

Planet Peptide appears to ship within the United States. Specific timelines and cold chain packaging details — important for temperature-sensitive lyophilized peptides — should be confirmed directly with the supplier before ordering, especially during warm-weather months or for time-sensitive research schedules.

Is Planet Peptide a legitimate supplier?

Planet Peptide is an active research compound vendor accessible through a live website with a real product catalog in our database. We have not completed formal verification through our platform's supplier verification process. As with any unverified supplier, researchers should request batch COAs, confirm third-party testing methodology, start with a test order before bulk commitment, and verify product quality through independent means.

How does Planet Peptide's catalog compare to larger suppliers?

Planet Peptide carries approximately 25-30 unique compounds across 61 SKUs (multiple formats per compound). Larger suppliers may carry 150-250+ unique compounds but with less format depth per compound. Planet Peptide's value is catalog curation: if metabolic peptides (GLP-1 agonists), neuropeptides, and recovery compounds cover your research needs, Planet Peptide's multi-format bulk depth may be preferable to a wider catalog that is thinner in each area.

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Who Planet Peptide Is Best For

Best fit:

• •Research programs focused on GLP-1 and metabolic agonist peptides who need multiple compound formats from one vendor
• •Laboratories ordering bulk quantities of tirzepatide, retatrutide, semaglutide, or cagrilintide
• •Programs that require credit card payment for institutional compliance or purchase protection
• •Researchers who want to consolidate metabolic + neuropeptide + recovery compound sourcing under a single vendor with consistent catalog structure

Less ideal for:

• •Researchers who require independently verified COA documentation before ordering (verification pending on our platform)
• •Programs needing exotic compounds or very large SKU breadth beyond Planet Peptide's research verticals
• •International researchers (US shipping only; export availability unconfirmed)
• •Budget-focused single-vial purchasers — the mid-tier individual pricing means cheaper options exist for common compounds, though quality tradeoffs apply

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Summary

Planet Peptide is a well-positioned supplier for researchers working in GLP-1, metabolic, neuropeptide, and recovery peptide research areas. The catalog's 61 listings deliver genuine depth — particularly in GLP-1 agonists, where four compounds (semaglutide, tirzepatide, retatrutide, cagrilintide) each appear in multiple format options including bulk bundles. Bulk purchasing coverage extends to 16+ compounds with meaningful per-vial discounts on most.

Credit card acceptance, a stated metabolic research mission, and deliberate catalog curation make Planet Peptide a practical single-vendor source for research programs in these verticals. The tirzepatide coverage in particular — individual 10mg, 30mg, 60mg RUO, plus three bulk formats — is among the most comprehensive available from a single supplier on our platform.

The key gaps are platform verification and unconfirmed COA practices. For research programs where documentation, audit trails, and quality verification are critical, due diligence should precede bulk commitment. Request batch-specific COAs, confirm the third-party testing laboratory, clarify endotoxin testing availability, and start with test orders before scaling volume.

Formal platform verification is pending. Request COAs for all compounds before ordering. All products are for laboratory research use only.

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Last reviewed: August 2026. Pricing and availability are subject to change. Compound list based on catalog data as of August 2026.