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Independent · Evidence-based · Updated monthly

Evidence-based reviews of research peptides

Side-by-side comparisons, dosage protocols and the peer-reviewed science behind every compound, from semaglutide and tirzepatide research analogs to BPC-157 and GHK-Cu. For research use only.

Peptides reviewed
24+
Research citations
150+
Supplier audits
8
Updated
May 2026
Editor's picks

Featured research peptides

5-Amino-1MQ 50mg
lyophilized powder
Longevity

Longevity research compound investigated in mitochondrial, sirtuin and senescence pathways.

Dose
50 mg
Purity
>98% by HPLC
Price
$80.00
Check Price
BPC-157 10mg
lyophilized powder
Tissue Repair

Tissue-repair research peptide studied in soft tissue, GI and angiogenesis models.

Dose
10 mg
Purity
>98% by HPLC
Price
$65.00
Check Price
Epithalon 50mg
lyophilized powder
Longevity

Longevity research compound investigated in mitochondrial, sirtuin and senescence pathways.

Dose
50 mg
Purity
>98% by HPLC
Price
$75.00
Check Price
GHK-Cu 50mg
lyophilized powder
Cosmetic

Cosmetic-research peptide studied in dermal remodeling, hair-follicle and pigmentation pathways.

Dose
50 mg
Purity
>98% by HPLC
Price
$65.00
Check Price
GLP-1 (SMA) 10mg
lyophilized powder
GLP-1 / Incretin

Research-grade GLP-1 for metabolic, incretin and body-composition studies.

Dose
10 mg
Purity
>98% by HPLC
Price
$80.00
Check Price
GLP-2 (TRZ) 15mg
lyophilized powder
GLP-1 / Incretin

Research-grade GLP-2 for metabolic, incretin and body-composition studies.

Dose
15 mg
Purity
>98% by HPLC
Price
$75.00
Check Price
GLP-3 (RTA) 10mg
lyophilized powder
GLP-1 / Incretin

Research-grade GLP-3 for metabolic, incretin and body-composition studies.

Dose
10 mg
Purity
>98% by HPLC
Price
$130.00
Check Price
IGF-1 LR3 1mg
lyophilized powder
Growth Hormone

Growth-hormone-axis research peptide used in hypertrophy, IGF-1 and recovery models.

Dose
1 mg
Purity
>98% by HPLC
Price
$90.00
Check Price
MOTS-C 10mg
lyophilized powder
Longevity

Longevity research compound investigated in mitochondrial, sirtuin and senescence pathways.

Dose
10 mg
Purity
>98% by HPLC
Price
$70.00
Check Price
NAD+ 500mg
lyophilized powder
Longevity

Longevity research compound investigated in mitochondrial, sirtuin and senescence pathways.

Dose
500 mg
Purity
>98% by HPLC
Price
$60.00
Check Price
TB-500 (Thymosin Beta-4)
lyophilized powder
Tissue Repair

Tissue-repair research peptide studied in soft tissue, GI and angiogenesis models.

Dose
10 mg
Purity
>98% by HPLC
Price
$75.00
Check Price

Why our reviews are different

We treat research peptides the way pharmacy reviewers treat compounding pharmacies, with documentation, lab verification and published citations.

Third-party CoA verified

Every reviewed supplier provides batch-specific certificates of analysis we cross-check against independent labs.

Peer-reviewed citations

Mechanism and pharmacokinetic claims are tied to PubMed-indexed studies, we link directly to the source, not press releases.

Independent editorial

Reviews are written by a PharmD and a biochemistry MSc. Affiliate links never affect rankings or what we choose to cover.

Frequently asked questions

Are research peptides legal to buy?
In most jurisdictions research peptides may be purchased by researchers and laboratories for in-vitro and animal research. They are not approved for human consumption and the suppliers we review sell them strictly for that purpose. Check your local regulations before purchasing.
What makes a good peptide supplier?
Third-party HPLC and mass-spectrometry testing, batch-specific certificates of analysis, transparent manufacturing standards, and consistent customer service. See our supplier choice guide for the full checklist.
How are products on this site ranked?
Rankings combine independent CoA verification, peer-reviewed research depth, price per milligram, formulation quality, and reader feedback. Affiliate relationships never change rankings, they only fund the testing.
Do you accept advertising?
No. We earn a small affiliate commission when readers purchase through our links, but no vendor pays for placement. Reviewed suppliers are selected on quality criteria alone.