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Vendor comparison

Grey Matters Research vs Peptides direct to you

Grey Matters Research is cheaper per mg on 48 of the 49 peptides they share; Peptides direct to you on 1.

Across all 49, Grey Matters Research’s price per mg is a median 67% lower than Peptides direct to you’s.

Grey Matters Research
Listings on the index
56
Cheaper per mg on
48 of 49 shared
Certificates of analysis on file
none yet
Ships from
United States
Latest price check
18 Aug 2026
Peptides direct to you
Listings on the index
77
Cheaper per mg on
1 of 49 shared
Certificates of analysis on file
none yet
Ships from
not stated
Latest price check
30 Oct 2026

Retail 49

Purchases of fewer than 10 vials.

  • Adamax

    Grey Matters Research

    $4.20/mg

    10 mg · $42.00

    checked 18 Aug 2026

    Peptides direct to you

    $15.80/mg

    5 mg · $79.00

    checked 30 Oct 2026

    Grey Matters Research 73% cheaper

  • Adipotide

    Grey Matters Research

    $3.10/mg

    10 mg · $31.00

    checked 18 Aug 2026

    Peptides direct to you

    $8.90/mg

    10 mg · $89.00

    checked 30 Oct 2026

    Grey Matters Research 65% cheaper

  • AHK-Cu

    Grey Matters Research

    $0.170/mg

    100 mg · $17.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.58/mg

    50 mg · $79.00

    checked 30 Oct 2026

    Grey Matters Research 89% cheaper

  • AICAR

    Grey Matters Research

    $0.300/mg

    50 mg · $15.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.38/mg

    50 mg · $69.00

    checked 30 Oct 2026

    Grey Matters Research 78% cheaper

  • AOD-9604

    Grey Matters Research

    $4.00/mg

    5 mg · $20.00

    checked 18 Aug 2026

    Peptides direct to you

    $9.80/mg

    5 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 59% cheaper

  • ARA-290

    Grey Matters Research

    $1.19/mg

    16 mg · $19.00

    checked 18 Aug 2026

    Peptides direct to you

    $5.56/mg

    16 mg · $89.00

    checked 30 Oct 2026

    Grey Matters Research 79% cheaper

  • Cardiogen

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • Cartalax

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • Cerebrolysin

    Grey Matters Research

    $0.533/mg

    30 mg · $16.00

    checked 18 Aug 2026

    Peptides direct to you

    $0.367/mg

    215 mg · $79.00

    checked 30 Oct 2026

    Peptides direct to you 31% cheaper

  • CJC-1295 DAC

    Grey Matters Research

    $4.20/mg

    5 mg · $21.00

    checked 18 Aug 2026

    Peptides direct to you

    $9.80/mg

    5 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 57% cheaper

  • CJC-1295 NO DAC

    Grey Matters Research

    $2.60/mg

    10 mg · $26.00

    checked 18 Aug 2026

    Peptides direct to you

    $7.80/mg

    5 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 67% cheaper

  • Cortagen

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • DSIP

    Grey Matters Research

    $1.90/mg

    10 mg · $19.00

    checked 18 Aug 2026

    Peptides direct to you

    $7.80/mg

    5 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 76% cheaper

  • Epithalon

    Grey Matters Research

    $1.10/mg

    20 mg · $22.00

    checked 18 Aug 2026

    Peptides direct to you

    $2.36/mg

    25 mg · $59.00

    checked 30 Oct 2026

    Grey Matters Research 53% cheaper

  • Glutathione

    Grey Matters Research

    $0.012/mg

    1500 mg · $18.00

    checked 18 Aug 2026

    Peptides direct to you

    $0.082/mg

    600 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 85% cheaper

  • Hexarelin

    Grey Matters Research

    $3.60/mg

    5 mg · $18.00

    checked 18 Aug 2026

    Peptides direct to you

    $9.00/mg

    5 mg · $45.00

    checked 30 Oct 2026

    Grey Matters Research 60% cheaper

  • Humanin

    Grey Matters Research

    $2.80/mg

    10 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $7.90/mg

    10 mg · $79.00

    checked 30 Oct 2026

    Grey Matters Research 65% cheaper

  • IGF-1 LR3

    Grey Matters Research

    $34.00/mg

    1 mg · $34.00

    checked 18 Aug 2026

    Peptides direct to you

    $490.00/mg

    0.1 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 93% cheaper

  • Ipamorelin

    Grey Matters Research

    $1.80/mg

    10 mg · $18.00

    checked 18 Aug 2026

    Peptides direct to you

    $5.90/mg

    10 mg · $59.00

    checked 30 Oct 2026

    Grey Matters Research 69% cheaper

  • Kisspeptin

    Grey Matters Research

    $1.60/mg

    10 mg · $16.00

    checked 18 Aug 2026

    Peptides direct to you

    $6.90/mg

    10 mg · $69.00

    checked 30 Oct 2026

    Grey Matters Research 77% cheaper

  • KPV

    Grey Matters Research

    $1.07/mg

    30 mg · $32.00

    checked 18 Aug 2026

    Peptides direct to you

    $9.80/mg

    5 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 89% cheaper

  • LL-37

    Grey Matters Research

    $3.60/mg

    5 mg · $18.00

    checked 18 Aug 2026

    Peptides direct to you

    $11.80/mg

    5 mg · $59.00

    checked 30 Oct 2026

    Grey Matters Research 69% cheaper

  • Mazdutide

    Grey Matters Research

    $3.60/mg

    10 mg · $36.00

    checked 18 Aug 2026

    Peptides direct to you

    $16.90/mg

    10 mg · $169.00

    checked 30 Oct 2026

    Grey Matters Research 79% cheaper

  • Melanotan 1

    Grey Matters Research

    $1.50/mg

    10 mg · $15.00

    checked 18 Aug 2026

    Peptides direct to you

    $3.90/mg

    10 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 62% cheaper

  • Melanotan 2

    Grey Matters Research

    $1.40/mg

    10 mg · $14.00

    checked 18 Aug 2026

    Peptides direct to you

    $3.90/mg

    10 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 64% cheaper

  • MOTS-C

    Grey Matters Research

    $1.00/mg

    40 mg · $40.00

    checked 18 Aug 2026

    Peptides direct to you

    $7.90/mg

    10 mg · $79.00

    checked 30 Oct 2026

    Grey Matters Research 87% cheaper

  • NAD+

    Grey Matters Research

    $0.028/mg

    1000 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $0.305/mg

    750 mg · $229.00

    checked 30 Oct 2026

    Grey Matters Research 91% cheaper

  • Oxytocin

    Grey Matters Research

    $1.60/mg

    10 mg · $16.00

    checked 18 Aug 2026

    Peptides direct to you

    $3.90/mg

    10 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 59% cheaper

  • Pancragen

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • PE-22-28

    Grey Matters Research

    $1.60/mg

    10 mg · $16.00

    checked 18 Aug 2026

    Peptides direct to you

    $11.13/mg

    8 mg · $89.00

    checked 30 Oct 2026

    Grey Matters Research 86% cheaper

  • PEG-MGF

    Grey Matters Research

    $9.00/mg

    2 mg · $18.00

    checked 18 Aug 2026

    Peptides direct to you

    $13.80/mg

    5 mg · $69.00

    checked 30 Oct 2026

    Grey Matters Research 35% cheaper

  • Pinealon

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • Prostamax

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • PT-141

    Grey Matters Research

    $1.50/mg

    10 mg · $15.00

    checked 18 Aug 2026

    Peptides direct to you

    $4.90/mg

    10 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 69% cheaper

  • Retatrutide

    Grey Matters Research

    $1.22/mg

    60 mg · $73.00

    checked 18 Aug 2026

    Peptides direct to you

    $23.80/mg

    5 mg · $119.00

    checked 30 Oct 2026

    Grey Matters Research 95% cheaper

  • Selank

    Grey Matters Research

    $1.60/mg

    10 mg · $16.00

    checked 18 Aug 2026

    Peptides direct to you

    $4.90/mg

    10 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 67% cheaper

  • Semaglutide

    Grey Matters Research

    $1.70/mg

    10 mg · $17.00

    checked 18 Aug 2026

    Peptides direct to you

    $13.27/mg

    15 mg · $199.00

    checked 30 Oct 2026

    Grey Matters Research 87% cheaper

  • Semax

    Grey Matters Research

    $1.60/mg

    10 mg · $16.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.96/mg

    25 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 18% cheaper

  • SNAP-8

    Grey Matters Research

    $1.00/mg

    10 mg · $10.00

    checked 18 Aug 2026

    Peptides direct to you

    $3.90/mg

    10 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 74% cheaper

  • SS-31

    Grey Matters Research

    $1.16/mg

    50 mg · $58.00

    checked 18 Aug 2026

    Peptides direct to you

    $2.98/mg

    50 mg · $149.00

    checked 30 Oct 2026

    Grey Matters Research 61% cheaper

  • Survodutide

    Grey Matters Research

    $3.50/mg

    10 mg · $35.00

    checked 18 Aug 2026

    Peptides direct to you

    $17.90/mg

    10 mg · $179.00

    checked 30 Oct 2026

    Grey Matters Research 80% cheaper

  • TB-500

    Grey Matters Research

    $1.80/mg

    10 mg · $18.00

    checked 18 Aug 2026

    Peptides direct to you

    $7.90/mg

    10 mg · $79.00

    checked 30 Oct 2026

    Grey Matters Research 77% cheaper

  • Tesamorelin

    Grey Matters Research

    $2.40/mg

    20 mg · $48.00

    checked 18 Aug 2026

    Peptides direct to you

    $8.90/mg

    10 mg · $89.00

    checked 30 Oct 2026

    Grey Matters Research 73% cheaper

  • Testagen

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • Thymalin

    Grey Matters Research

    $1.60/mg

    10 mg · $16.00

    checked 18 Aug 2026

    Peptides direct to you

    $2.45/mg

    20 mg · $49.00

    checked 30 Oct 2026

    Grey Matters Research 35% cheaper

  • Thymosin Alpha-1

    Grey Matters Research

    $2.50/mg

    10 mg · $25.00

    checked 18 Aug 2026

    Peptides direct to you

    $8.90/mg

    10 mg · $89.00

    checked 30 Oct 2026

    Grey Matters Research 72% cheaper

  • Vesilute

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • Vesugen

    Grey Matters Research

    $1.40/mg

    20 mg · $28.00

    checked 18 Aug 2026

    Peptides direct to you

    $1.95/mg

    20 mg · $39.00

    checked 30 Oct 2026

    Grey Matters Research 28% cheaper

  • VIP

    Grey Matters Research

    $2.20/mg

    10 mg · $22.00

    checked 18 Aug 2026

    Peptides direct to you

    $11.50/mg

    6 mg · $69.00

    checked 30 Oct 2026

    Grey Matters Research 81% cheaper

Two listings are compared only when they are the same peptide in the same market, so a 10-vial kit is never set against a single vial. Price per mg is our arithmetic on the listed price, for comparison; the amount you pay is the listed price for the size shown, so check it on the vendor’s own page before you buy. What price per mg means.

No vendor can pay to change a price or the order of anything on this page. Some outbound links are affiliate links.