What purity are Bastion Peptides products?

All peptides from Bastion Peptides are independently verified at ≥99% purity by Janoshik Analytical using reverse-phase HPLC and LC-MS confirmation. Batch-specific Certificates of Analysis are available through the COA Lookup on our Resources page.

What form do Bastion Peptides products come in?

All peptides are supplied as lyophilized (freeze-dried) powder in sealed, individually labeled vials. Lyophilization extends shelf life and protects peptide integrity during shipping and storage.

Is a Certificate of Analysis available?

Yes. A batch-specific Certificate of Analysis from Janoshik Analytical is available for every Bastion Peptides product through the COA Lookup tool on the Resources page.

How should research peptides be stored?

Store lyophilized peptides at −20°C. After reconstitution with bacteriostatic water, store at 2–8°C and use within 28 days. Avoid exposure to heat, light, and repeated freeze-thaw cycles.

Growth & GH Peptides

GHRP-2 | 5mg

Name: GHRP-2 | 5mg | HPLC Verified ≥99% Purity | Bastion Peptides
SKU: GHRP2-5
Availability: InStock
Rating: 0 (1 reviews)

(1 customer review)

Price range: $28.00 through $215.00

Research-grade GHRP-2 5mg. GH secretagogue peptide. For in vitro research use only.

Pack Size

Clear

HPLC Verified ≥99% Purity

COA Included with Every Order

Ships from US — Discreet Packaging

I confirm this product is for in-vitro research purposes only and not for human consumption or therapeutic use.

SKU: GHRP2-5 Category: Growth & GH Peptides

Add $150.00 more to unlock FREE shipping

Volume Pricing

1 Vial $28.00

5 Vials $120.00($24.00/vial) Save 14%

10 Vials Best Value $215.00($21.50/vial) Save 23%

Wholesale accounts save 20–50% on all orders.

For Research Use Only — Not for human or veterinary consumption. Intended solely for in vitro laboratory research.

Third-Party Tested · Janoshik Independent Laboratories · >99% Purity

Read Research Overview

Cold-Chain Shipping Included — Insulated packaging + ice packs on every order. Store at −20°C upon arrival.

30-Day Guarantee Full refund, no questions asked

Secure Checkout 256-bit SSL encryption

≥99% Purity HPLC verified & COA on file

We accept: VISA MC AMEX STRIPE ₿ BTC ETH USDC

Overview

GHRP-2 (Growth Hormone-Releasing Peptide-2) is a synthetic hexapeptide and potent agonist of the ghrelin/GHS-R1a receptor. It is among the most efficacious GH secretagogues in its class, inducing strong GH pulses through both direct pituitary stimulation and hypothalamic GHRH release. GHRP-2 is frequently used in research as a reference compound for GHS-R agonism studies and is commonly paired with GHRH analogues to investigate synergistic GH release pathways.

Sequence	H-DAla-D2Nal-Ala-Trp-DPhe-Lys-NH₂
Molecular Formula	C₄₅H₅₅N₉O₆
Molecular Weight	817.94 g/mol
CAS Number	158861-67-7
Purity	≥99% (HPLC verified)
Format	Lyophilized powder
Quantity	5mg per vial
Storage	-20°C, protect from light

Key Research Applications

GHS-R1a receptor agonism and binding affinity studies
Pituitary somatotroph GH pulse amplitude research
Ghrelin pathway and appetite regulation models
GHRH + GHRP synergistic combination studies
Cortisol and prolactin co-secretion investigation
Comparison with GHRP-6, Ipamorelin, and Hexarelin

Reconstitution: Add 1 mL of sterile bacteriostatic water. Gently swirl — do not shake. Store reconstituted peptide at 4°C and use within 14 days.

Research Use Only. This product is intended strictly for in vitro laboratory research. Not for human or veterinary use. Not evaluated by the FDA.

Researcher Resources

For laboratory research purposes only. Not for human consumption. These statements have not been evaluated by the U.S. Food and Drug Administration.

Pack Size	1 Vial, 5 Vials, 10 Vials

1 review for GHRP-2 | 5mg

Rated 4 out of 5
Growth Hormone Study Group – April 30, 2026
GHRP-2 is potent and pure. Compared favorably against reference standards. Will continue ordering for our GH secretagogue panel.

Add a review

Reconstitution Calculator

Calculate exactly how much bacteriostatic water to add for your target concentration.

Peptide Amount (mg)

Target Concentration

Dose Per Injection (mcg)

BAC Water to Add —

Volume Per Dose —

Doses Per Vial —

Shelf Life (reconstituted) 28 days @ 4°C

For research purposes only. Always verify concentrations independently.

Frequently Bought Together

Bacteriostatic Water 10ml $8.00 Required for peptide reconstitution

+ Add to Cart

Frequently Asked Questions

What purity level is this peptide?+

All Bastion Peptides products are >99% purity (HPLC verified). IGF-1 LR3 is >98%. Certificate of Analysis available on the Resources page for every batch.

How do I reconstitute this peptide?+

Add bacteriostatic water slowly along the vial wall — do not shake. Gently swirl until dissolved. Standard dilution: 1ml bac water per 5mg peptide. Store reconstituted peptide at 4°C and use within 28 days.

What are the storage requirements?+

Store lyophilized (freeze-dried) peptides at −20°C. Once reconstituted, store at 4°C and use within 28 days. Avoid repeated freeze-thaw cycles and light exposure.

Is this product for human use?+

No. All products are strictly for in vitro laboratory research only. Not intended for human or veterinary use, consumption, or any therapeutic application.

How is cold-chain shipping handled?+

All orders ship with insulated packaging and ice packs included. US standard shipping is 3–5 business days. Expedited options available at checkout.

Do you provide a Certificate of Analysis?+

Yes. COA documents for every batch are available on the Resources page. Contact support to request a specific batch COA.

Certificate of Analysis

COA Available on Request

Janoshik Independent Lab

Lot-Specific Testing

All Bastion Peptides products are submitted to Janoshik Independent Laboratories for third-party purity, identity, and potency verification. Certificates of Analysis are available for every product lot.

Request COA by Email Janoshik Lab Website

GHRP-2 | 5mg