Research peptides,
sealed and ready.
A tight catalog of 89 research peptide vials. Every lot is third-party HPLC verified at 98% purity or higher and ships with its original certificate of analysis. Free US shipping at $200.
Built for buyers who already wrote their protocol.
Peptides Maxxing is a research peptide store built for the optimizer crowd — buyers who already know which compounds belong in the next twelve-week block. The catalog stays tight on purpose: every vial we list is one we keep in stock, lot-tested by third-party HPLC at 98% purity or higher, and sealed under nitrogen before it leaves the shelf. Orders ship tracked from US fulfillment, land in three to five business days, and qualify for free shipping at $200 — a bar most stack orders clear without trying. Each lot arrives with its own certificate of analysis, so the spec printed on the listing page matches the spec on the document you receive. Everything sold here is for in-vitro laboratory research use only, and the checkout is built to move people who already did the reading.
Explore by therapeutic focus
Fat Loss
Every GLP vial we stock plus the non-GLP fat-loss shelf — Retatrutide, Tirzepatide, Semaglutide, Cagrilintide, Survodutide, Mazdutide, AOD9604, 5-Amino-1MQ, BAM-15, SLU-PP-332, Tesofensine.
Recovery
BPC-157 vial + oral capsules, TB-500, Thymosin Alpha-1 and the pre-mixed BPC-157 / TB-500 blends. The tight repair shelf.
Growth Hormone
GHRH analogues, ghrelin mimetics and pre-mixed blends plus IGF-1 LR3 from the specialty shelf. Everything for GH-axis ordering in one place.
Skin & Beauty
GHK-Cu in two sizes, GLOW and KLOW multi-compound blends, Melanotan I and II, plus SNAP-8 for topical formulation.
Longevity
Epitalon, NA-Epitalon, MOTS-c (3 sizes), NAD+ (500/1000 mg), SS-31, FOXO4-DRI, P21, Thymulin. Four mechanism families in one shelf.
Nootropic
N-Acetyl Semax Amidate, NA-Selank Amidate, Selank, DSIP in three sizes, PE-22-28, P21. Focus, anxiety, sleep and mood.
Hormonal
The four HPG-axis and neuroendocrine peptide vials: PT-141 (Bremelanotide), Kisspeptin-10, Oxytocin, Gonadorelin.
Khavinson
The full Khavinson short-peptide lineup. Pinealon, Cortagen, Cardiogen, Vesugen, Livagen, Thymogen, Vilon and more — each named for its target organ system.
Moving fastest this month
Retatrutide
Triple GLP-1/GIP/Glucagon receptor agonist
Tirzepatide
39-amino-acid synthetic peptide with C20 fatty diacid modification
BPC-157 + TB-500 Blend
Body Protection Compound-157 (15-amino-acid pentadecapeptide)
GHK-Cu
Glycyl-L-histidyl-L-lysine copper complex
Ipamorelin/CJC-1295 Blend
Aib-His-D-2-Nal-D-Phe-Lys-NH2
Semaglutide
GLP-1 receptor agonist (31-amino acid lipidated peptide)
GLOW Blend
Epitalon
Ala-Glu-Asp-Gly tetrapeptide
How a vial gets to your door
Four steps between source and shipment. No surprises, no hidden fees, no consumer-grade marketing layer between you and the compound.
Source
We source from a single research-grade supplier with documented synthesis processes and lot-traceable manufacturing.
Verify
Every lot is third-party HPLC verified at 98% purity or higher. The certificate ships with the order.
Seal
Vials are sealed under nitrogen atmosphere and lot-stamped before they leave the warehouse.
Dispatch
Orders leave within one business day, tracked courier to your US address. Free shipping above $200.
Third-party HPLC
Every lot is independently tested and the certificate ships with the order — not on request, not on file.
Lot traceability
Vials are stamped with their lot number. The spec on the listing matches the spec on the document you receive.
Tracked US shipping
Orders dispatch within one business day, deliver in three to five. Free above $200, flat rate below.