Peptide vials.
Ordered. Shipped. Sealed.
A short, store-first catalog. Every vial is lot-tested at ≥98% HPLC purity, ships sealed under nitrogen, and arrives tracked to US addresses in 3–5 business days.
StacksPeptide is a focused research-peptide store built for buyers who already know what they need. The catalog is deliberately short — every vial listed is one we keep in stock, lot-tested by third-party HPLC at 98% purity or higher, and sealed under nitrogen before it ships. Orders go out in tracked, temperature-conscious packaging and reach US addresses in three to five business days, with free shipping on orders over $200. Every lot ships with a verified certificate of analysis, and all compounds are sold strictly for laboratory and research use. What you get is a clean price, a documented product, and a checkout that does not waste your time.
Store
Shop by category
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.
Bestsellers
What everyone's ordering
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
From click to delivery
How ordering works
Four steps between clicking Buy and the sealed vial hitting your door. No surprises, no hidden fees.
Pick your vial
Browse categories or search by name. Every listing shows price, size options, and stock.
Click buy
We hand off to our partner supplier's secure checkout with our referral code applied.
Tracked ship
Orders dispatch within one business day, tracked courier to your US address.
Delivered sealed
3–5 business days. Vial ships nitrogen-sealed with its original lot CoA inside.