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Shop 139 research-grade peptides for sale — Retatrutide, Tirzepatide, BPC-157, GHK-Cu, MOTS-c, Epitalon and more. ≥98% HPLC verified, fast US shipping, free over $200.
139
Peptides for sale
Full Phiogen catalog
≥98%
HPLC purity
Verified on every batch
$200+
Free shipping
Fast US delivery
Best Sellers
- Retatrutide
- From $134.99
- Tirzepatide
- From $134.99
- Semaglutide
- From $44.99
- BPC-157
- $53.99
- TB-500
- $53.99
- GHK-Cu
- From $45.00
Best Sellers
Most-purchased peptides on Peptide Scientists
Retatrutide 15mg
Buy Retatrutide 15mg online — research-grade lyophilized peptide for laboratory use. Triple GLP-1/GIP/Glucagon receptor agonist. ≥98% HPLC purity verified.
CAS: 2381089-83-2
Tirzepatide 15mg
Buy Tirzepatide 15mg online — research-grade lyophilized peptide for laboratory use. 39-amino-acid synthetic peptide with C20 fatty diacid modification. ≥98% HPLC purity verified.
CAS: 2023788-19-2
BPC-157 10mg
Buy BPC-157 10mg online — research-grade lyophilized peptide for laboratory use. Body Protection Compound-157 (15-amino-acid pentadecapeptide). ≥98% HPLC purity verified.
CAS: 137525-51-0
GHK-Cu 50mg
Buy GHK-Cu 50mg online — research-grade lyophilized peptide for laboratory use. Glycyl-L-histidyl-L-lysine copper complex. ≥98% HPLC purity verified.
CAS: 49557-75-7
Shop by Goal
Find the right peptide for your research focus
Weight Loss & Metabolic
Retatrutide, Tirzepatide, Semaglutide, Cagrilintide — the GLP-1 family for fat loss research.
Shop nowRecovery & Healing
BPC-157, TB-500, IGF-1 LR3, KPV — tendon, gut, and tissue repair compounds.
Shop nowSkin & Aesthetics
GHK-Cu, SNAP-8, Melanotan, GLOW Blend — collagen, melanogenesis, and skin quality peptides.
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Ipamorelin, CJC-1295, Sermorelin, Tesamorelin, GHRP — secretagogue stack for GH research.
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Epitalon, NAD+, MOTS-c, FOXO4-DRI, SS-31 — telomere and mitochondrial health compounds.
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Selank, Semax, P21, DSIP, PE-22-28 — neuropeptides for cognitive and stress research.
Shop nowThe Largest Peptide Catalog Online
139
Peptides for Sale
Across 10 categories
≥98%
HPLC Purity
Verified per batch
$8.99
Starting Price
From entry vials
Peptide Scientists carries the most comprehensive peptide catalog online — 139 compounds spanning weight loss, recovery, skin and aesthetics, growth hormone, longevity, nootropics, fat loss, hormonal research, and the full Khavinson bioregulator series. Every product is sourced from Phiogen, our verified Reykjavík-based supplier with ≥98% HPLC purity verification on every batch and full certificates of analysis on request.
≥98% HPLC Verified
Every batch comes with a certificate of analysis showing ≥98% purity via HPLC. Sourced from Phiogen, our verified Reykjavík supplier.
Free US Shipping
Free shipping on every order over $200. Fast 1-2 day handling, 2-5 day USPS/UPS transit, with tracking on every order.
139 Peptides In Stock
From Retatrutide and Tirzepatide to bioregulators and nootropics — the largest research peptide catalog online. 30-day return policy.
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139 research-grade peptides in stock. ≥98% HPLC purity verified. Free shipping on orders over $200. Fast US delivery with tracking.