✦
Price Index1014 vendors20856 listings
Median $/mg
$0.600
Spread
3358%
Vendors
767
Filter by vial sizePick the size you want to buy. The small number is how many vendors sell it.
Peppy, our AI agent activity log
times in UTC── 6 Nov 2026 ──
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Cortagen"
› fetch ……… store's catalogue: ok
› match ……… record Cortagen
› parse ……… size label → 20 mg
› diff ………… index had 20 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "FOXO4-DRI"
› fetch ……… store's catalogue: ok
› match ……… record FOXO4-DRI
› parse ……… size label → 10 mg
› diff ………… index had 10 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Chonluten"
› fetch ……… store's catalogue: ok
› match ……… record Chonluten
› parse ……… size label → 20 mg
› diff ………… index had 20 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Cardiogen"
› fetch ……… store's catalogue: ok
› match ……… record Cardiogen
› parse ……… size label → 20 mg
› diff ………… index had 20 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Bronchogen"
› fetch ……… store's catalogue: ok
› match ……… record Bronchogen
› parse ……… size label → 20 mg
› diff ………… index had 20 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "PEG-MGF"
› fetch ……… store's catalogue: ok
› match ……… record PEG-MGF
› parse ……… size label → 5 mg
› diff ………… index had 5 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Vilon"
› fetch ……… store's catalogue: ok
› match ……… record Vilon
› parse ……… size label → 20 mg
› diff ………… index had 20 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Testagen"
› fetch ……… store's catalogue: ok
› match ……… record Testagen
› parse ……… size label → 20 mg
› diff ………… index had 20 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Vesilute"
› fetch ……… store's catalogue: ok
› match ……… record Vesilute
› parse ……… size label → 20 mg
› diff ………… index had 20 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Thymulin"
› fetch ……… store's catalogue: ok
› match ……… record Thymulin
› parse ……… size label → 10 mg
› diff ………… index had 10 mg → no drift
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Sermorelin"
› fetch ……… store's catalogue: ok
› match ……… record Sermorelin
› parse ……… size label → 10 mg
› stock ……… out of stock at the store
› write ……… price kept
out of stock at the store · price kept
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "MOTS-C" --rank 619
› fetch ……… store's catalogue: ok
› match ……… record MOTS-C
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "GHK-Cu" --rank 644
› fetch ……… store's catalogue: ok
› match ……… record GHK-Cu
› parse ……… size label → 50 mg [exact]
› diff ………… index had 50 mg → no drift
› write ……… price committed to the index
link ok · 50 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "LL-37" --rank 191
› fetch ……… store's catalogue: ok
› match ……… record LL-37
› parse ……… size label → 5 mg [exact]
› diff ………… index had 5 mg → no drift
› write ……… price committed to the index
link ok · 5 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "DSIP" --rank 421
› fetch ……… store's catalogue: ok
› match ……… record DSIP
› parse ……… size label → 5 mg [exact]
› diff ………… index had 5 mg → no drift
› write ……… price committed to the index
link ok · 5 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Melanotan 1" --rank 226
› fetch ……… store's catalogue: ok
› match ……… record Melanotan 1
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Epithalon" --rank 425
› fetch ……… store's catalogue: ok
› match ……… record Epithalon
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Ipamorelin" --rank 381
› fetch ……… store's catalogue: ok
› match ……… record Ipamorelin
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Thymosin Alpha-1" --rank 314
› fetch ……… store's catalogue: ok
› match ……… record Thymosin Alpha-1
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "TB-500" --rank 516
› fetch ……… store's catalogue: ok
› match ……… record TB-500
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "ARA-290" --rank 184
› fetch ……… store's catalogue: ok
› match ……… record ARA-290
› parse ……… size label → 15 mg [exact]
› diff ………… index had 15 mg → no drift
› write ……… price committed to the index
link ok · 15 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "PT-141" --rank 437
› fetch ……… store's catalogue: ok
› match ……… record PT-141
› parse ……… size label → 5 mg [exact]
› diff ………… index had 5 mg → no drift
› write ……… price committed to the index
link ok · 5 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "NAD+" --rank 625
› fetch ……… store's catalogue: ok
› match ……… record NAD+
› parse ……… size label → 500 mg [exact]
› diff ………… index had 500 mg → no drift
› write ……… price committed to the index
link ok · 500 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Cartalax" --rank 106
› fetch ……… store's catalogue: ok
› match ……… record Cartalax
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Pinealon" --rank 93
› fetch ……… store's catalogue: ok
› match ……… record Pinealon
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "N-Acetyl Semax Amidate" --rank 18
› fetch ……… store's catalogue: ok
› match ……… record N-Acetyl Semax Amidate
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "BPC-157" --rank 594
› fetch ……… store's catalogue: ok
› match ……… record BPC-157
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "N-Acetyl Selank Amidate" --rank 28
› fetch ……… store's catalogue: ok
› match ……… record N-Acetyl Selank Amidate
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Cagrilintide" --rank 311
› fetch ……… store's catalogue: ok
› match ……… record Cagrilintide
› parse ……… size label → 5 mg [exact]
› diff ………… index had 5 mg → no drift
› write ……… price committed to the index
link ok · 5 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "5-Amino-1MQ" --rank 340
› fetch ……… store's catalogue: ok
› match ……… record 5-Amino-1MQ
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "PNC-27" --rank 62
› fetch ……… store's catalogue: ok
› match ……… record PNC-27
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Oxytocin" --rank 120
› fetch ……… store's catalogue: ok
› match ……… record Oxytocin
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Kisspeptin" --rank 233
› fetch ……… store's catalogue: ok
› match ……… record Kisspeptin
› parse ……… size label → 10 mg [exact]
› diff ………… index had 10 mg → no drift
› write ……… price committed to the index
link ok · 10 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "VIP" --rank 184
› fetch ……… store's catalogue: ok
› match ……… record VIP
› parse ……… size label → 5 mg [exact]
› diff ………… index had 5 mg → no drift
› write ……… price committed to the index
link ok · 5 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Livagen" --rank 37
› fetch ……… store's catalogue: ok
› match ……… record Livagen
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Ovagen" --rank 33
› fetch ……… store's catalogue: ok
› match ……… record Ovagen
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Pancragen" --rank 33
› fetch ……… store's catalogue: ok
› match ……… record Pancragen
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Prostamax" --rank 44
› fetch ……… store's catalogue: ok
› match ……… record Prostamax
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Thymogen" --rank 27
› fetch ……… store's catalogue: ok
› match ……… record Thymogen
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
[12:00] $ peppy refresh --vendor "Biolongevity Labs" --peptide "Vesugen" --rank 50
› fetch ……… store's catalogue: ok
› match ……… record Vesugen
› parse ……… size label → 20 mg [exact]
› diff ………… index had 20 mg → no drift
› write ……… price committed to the index
link ok · 20 mg matches · price refreshed
All vendors · 767
9
ships United States · checked 2mo ago ·
Out of stock at last check 8h ago
$0.200/mg
100 mg vial · $20.00
55
ships Canada · Same-day shipping · 5-vial kit · checked 4d ago ·
$0.321/mg
5 × 100 mg kit · $161
C$225 at the store
57
ships United Kingdom · checked yesterday ·
$0.327/mg
100 mg vial · $32.70
£24.50 at the store
67
ships United States · Same-day shipping · checked yesterday ·
$0.349/mg
100 mg vial · $34.95
71
ships United States · Same-day shipping · checked yesterday ·
$0.350/mg
100 mg vial · $35.00
81
ships United States · Next-day shipping · checked yesterday ·
$0.350/mg
100 mg vial · $35.00
108
ships Canada · checked 20d ago ·
Out of stock at last check 38h ago
$0.396/mg
100 mg vial · $39.64
C$55.00 at the store
110
ships United States · Same-day shipping · checked yesterday ·
$0.399/mg
1000 mg vial · $399
126
ships United States · Ships within 24 hours · checked 1mo ago ·
$0.400/mg
300 mg vial · $120
134
ships United Kingdom · checked yesterday ·
$0.400/mg
50 mg vial · $20.01
£14.99 at the store
135
ships — · Ships within 24 hours · checked yesterday ·
$0.400/mg
100 mg vial · $40.03
£29.99 at the store
146
ships — · Next-day shipping · checked 2d ago ·
$0.427/mg
50 mg vial · $21.35
£15.99 at the store
147
ships United Kingdom · Next-day shipping · checked 2d ago ·
$0.427/mg
50 mg vial · $21.35
£15.99 at the store
148
ships Canada · Same-day shipping · checked yesterday ·
$0.429/mg
100 mg vial · $42.88
C$59.99 at the store
151
ships United States · Ships in 1 business day · checked yesterday ·
$0.430/mg
100 mg vial · $42.99
154
ships United Kingdom · 2-vial kit · checked yesterday ·
$0.434/mg
2 × 100 mg kit · $86.74
£64.99 at the store
157
ships United Kingdom · Same-day shipping · checked 3mo ago ·
$0.440/mg
100 mg vial · $43.98
£32.49 at the store
159
ships United States · Same-day shipping · checked yesterday ·
$0.440/mg
100 mg vial · $44.00
163
ships United States · Ships within 1 business day · checked today ·
$0.450/mg
100 mg vial · $44.99
174
ships United States · Ships within 24 hours · checked 6d ago ·
$0.450/mg
100 mg vial · $45.00
181
ships United States · Same-day shipping · checked yesterday ·
$0.450/mg
100 mg vial · $45.00
184
ships United States · Ships within 48 hours · checked yesterday ·
$0.450/mg
100 mg vial · $45.00
187
ships United Kingdom · checked yesterday ·
$0.454/mg
100 mg vial · $45.38
£34.00 at the store
191
ships United Kingdom · checked yesterday ·
$0.467/mg
100 mg vial · $46.65
£34.95 at the store
192
ships — · Ships within 1 working day · checked yesterday ·
$0.467/mg
100 mg vial · $46.70
£34.99 at the store
193
ships Europe · Same-day shipping · checked today ·
$0.467/mg
100 mg vial · $46.70
£34.99 at the store
195
ships United Kingdom · checked yesterday ·
$0.467/mg
100 mg vial · $46.72
£35.00 at the store
200
ships United States · Same-day shipping · checked yesterday ·
$0.470/mg
100 mg vial · $47.00
207
ships EU · Same-day shipping · checked 2d ago ·
$0.480/mg
50 mg vial · $24.02
£17.99 at the store
215
ships United States · Same-day shipping · checked yesterday ·
$0.490/mg
100 mg vial · $49.00
218
ships — · Ships within 3 business days · checked yesterday ·
$0.490/mg
100 mg vial · $49.00
219
ships — · Same-day shipping · 3-vial kit · checked yesterday ·
$0.495/mg
3 × 100 mg kit · $148
221
ships United States · Same-day shipping · checked 19d ago ·
Out of stock at last check 16d ago
$0.499/mg
50 mg vial · $24.95
222
ships United States · Same-day shipping · checked yesterday ·
$0.499/mg
100 mg vial · $49.95
226
ships United States · Same-day shipping · checked yesterday ·
$0.500/mg
100 mg vial · $49.99
227
ships — · checked 9d ago ·
Out of stock at last check 21h ago
$0.500/mg
100 mg vial · $49.99
251
ships United States · Ships within 24 hours · checked 2d ago ·
$0.500/mg
50 mg vial · $25.00
269
ships United States · Ships within 24 hours · checked 3d ago ·
$0.504/mg
100 mg vial · $50.40
277
ships United States · Ships within 24 hours · checked today ·
$0.530/mg
100 mg vial · $53.00
280
ships — · Ships within 24 hours · checked today ·
$0.534/mg
100 mg vial · $53.39
£40.00 at the store
282
ships Canada · Same-day shipping · checked 2d ago ·
$0.536/mg
100 mg vial · $53.61
C$75.00 at the store
301
ships — · checked 2mo ago ·
Out of stock at last check 8d ago
$0.550/mg
100 mg vial · $55.00
318
ships Lithuania · Same-day shipping · checked yesterday ·
$0.558/mg
100 mg vial · $55.80
€49.99 at the store
320
ships United States · Same-day shipping · checked yesterday ·
$0.560/mg
100 mg vial · $55.99
322
ships Canada · Same-day shipping · checked today ·
$0.565/mg
100 mg vial · $56.47
C$79.00 at the store
334
ships United Kingdom · Same-day shipping · checked yesterday ·
$0.587/mg
50 mg vial · $29.35
£21.99 at the store
335
ships United Kingdom · Ships within 1 business days · checked yesterday ·
$0.587/mg
100 mg vial · $58.73
£44.00 at the store
355
ships United Kingdom · Next-day shipping · checked 11d ago ·
$0.595/mg
50 mg vial · $29.77
£21.99 at the store
382
ships United States · Same-day shipping · checked yesterday ·
$0.600/mg
100 mg vial · $60.00
389
ships United Kingdom · checked yesterday ·
$0.600/mg
100 mg vial · $60.00
£44.95 at the store
399
ships United Kingdom · Same-day shipping · checked today ·
$0.601/mg
100 mg vial · $60.05
£44.99 at the store
400
ships United Kingdom · Same-day shipping · checked yesterday ·
$0.601/mg
100 mg vial · $60.05
£44.99 at the store
404
ships United Kingdom · Next-day shipping · checked 2d ago ·
$0.614/mg
50 mg vial · $30.70
£23.00 at the store
406
ships Australia · Same-day shipping · checked yesterday ·
$0.625/mg
100 mg vial · $62.55
A$89.00 at the store
407
ships United Kingdom · Next-day shipping · checked yesterday ·
$0.627/mg
100 mg vial · $62.67
£46.95 at the store
408
ships — · Same-day shipping · checked 6d ago ·
$0.627/mg
100 mg vial · $62.74
£47.00 at the store
413
ships United States · Same-day shipping · checked yesterday ·
$0.640/mg
100 mg vial · $64.00
415
ships United Kingdom · checked yesterday ·
$0.641/mg
100 mg vial · $64.07
£48.00 at the store
431
ships United States · Ships within 24 hours · checked today ·
$0.650/mg
100 mg vial · $65.00
447
ships United Kingdom · Same-day shipping · checked yesterday ·
$0.667/mg
50 mg vial · $33.36
£24.99 at the store
450
ships Europe · Same-day shipping · checked 2d ago ·
$0.669/mg
100 mg vial · $66.92
€59.95 at the store
451
ships — · Same-day shipping · checked today ·
$0.670/mg
100 mg vial · $66.96
€59.99 at the store
463
ships United Kingdom · checked yesterday ·
$0.694/mg
50 mg vial · $34.71
£26.00 at the store
493
ships — · checked 26d ago ·
Out of stock at last check 8h ago
$0.700/mg
100 mg vial · $70.00
502
ships Australia · Ships within 36 hours · checked 2d ago ·
$0.703/mg
50 mg vial · $35.14
A$50.00 at the store
510
ships United Kingdom · checked yesterday ·
$0.721/mg
50 mg vial · $36.03
£26.99 at the store
514
ships United States · Ships in 3-5 business days · checked 2mo ago ·
$0.735/mg
200 mg vial · $147
515
ships United States · Ships within 24 hours · checked yesterday ·
$0.736/mg
50 mg vial · $36.79
519
ships Australia · Next-day shipping · checked yesterday ·
$0.745/mg
100 mg vial · $74.46
A$106 at the store
520
ships United Kingdom · Ships within 24 hours · checked 6d ago ·
$0.746/mg
50 mg vial · $37.31
£27.95 at the store
536
ships United States · Same-day shipping · checked yesterday ·
$0.760/mg
100 mg vial · $76.00
557
ships United States · Ships in 7 business days · checked 6d ago ·
$0.800/mg
100 mg vial · $79.99
561
ships United States · Ships within 48 hours · checked 2d ago ·
$0.800/mg
50 mg vial · $40.00
589
ships United States · Same-day shipping · checked yesterday ·
$0.840/mg
50 mg vial · $42.00
601
ships United States · Ships within 48 hours · checked 6d ago ·
$0.860/mg
100 mg vial · $85.99
607
ships United States · Same-day shipping · checked yesterday ·
$0.890/mg
100 mg vial · $89.00
609
ships local warehouses on three continents · Same-day shipping · checked yesterday ·
$0.898/mg
50 mg vial · $44.88
618
ships United States · Ships within 1-2 business days · checked 6d ago ·
$0.900/mg
100 mg vial · $90.00
626
ships — · Next-day shipping · checked 2d ago ·
$0.926/mg
100 mg vial · $92.58
AED 340 at the store
629
ships United States · Same-day shipping · checked yesterday ·
$0.950/mg
100 mg vial · $95.00
650
ships United States · Ships within 48 hours · checked 11d ago ·
$1.00/mg
50 mg vial · $50.00
685
ships United States · Same-day shipping · checked today ·
$1.12/mg
50 mg vial · $56.19
A$79.95 at the store
715
ships Australia · Same-day shipping · checked 6d ago ·
$1.34/mg
50 mg vial · $66.77
A$95.00 at the store
725
ships United States · Ships within 24 hours · checked yesterday ·
$1.39/mg
100 mg vial · $139
748
ships Australia · Same-day shipping · checked 6d ago ·
$1.67/mg
50 mg vial · $83.64
A$119 at the store
752
ships — · Next-day shipping · checked 3mo ago ·
$1.70/mg
100 mg vial · $170
£126 at the store
Listings are for research use only and are not an offer to sell products for human consumption. Prices are normalised to cost per milligram from each vendor’s published listing and may be out of date — always confirm on the vendor’s own site before ordering. A store pricing in another currency is shown in US dollars at a recent exchange rate, with its own price beside it. Nothing here is medical advice.
How we price
What we check, what we hold back, and what a date next to a price does and does not mean.
For the index as a whole (how many vendors, listings and peptides, and how fresh the prices are), see the index in numbers.
How does PeptidesFinder get its prices?
Every price on this site comes from the vendor's own storefront, read by our own pricing engine and normalised to a cost per milligram so that products of different sizes can be compared side by side. The engine keeps the index fully up to date every week, and stamps every listing with the date it was last confirmed — so nothing on a comparison table is undated.
We do not sell peptides, and no vendor can pay to change a price on this site.
What does "price per mg" actually mean?
Cost per milligram is how a 5 mg vial at $29.99 and a 10 mg vial at $49.99 become comparable. It is arithmetic we do, on top of the vendor's listed price.
It is not a price you can pay. Nobody sells one milligram of anything. The amount you are charged is the listed price for the size shown, and that is the number to check on the vendor's own page before you buy.
Prices in other currencies are converted to US dollars for ranking. The original price and currency are what the vendor charges.
What does it mean when a price says it was checked on a date?
It means one specific thing: on that date, the product page we link to answered, and the price shown here is what we read. It does not mean any of the following, and we will not imply that it does.
- It does not mean the item is in stock now. Stock can sell out between one check and the next.
- It does not mean the price is still correct today. A price can change an hour after we read it.
- It does not mean we tested the product. We test nothing. Where a vendor has third-party testing, we say who did it and link the document.
Where a store's own page tells our reader whether an item is in stock, we record it at every check. A listing shown here that was out of stock at its last check carries a badge saying so and when we saw it, and is left out of the three cheapest until a later check finds it back in stock.
Why do some listings never appear in a comparison?
A wrong price is worse than a missing one, so some listings are held back even though we hold them.
Every price is compared against the rest of the market for the same peptide, hourly. A figure far outside that range is usually a unit error — a currency read in cents instead of dollars, a concentration mistaken for a quantity — and it is withheld until a person has looked at it. We also leave out listings that are not what they appear to be:
- Out-of-stock variants, which often carry a placeholder price.
- Capsules and tablets, which are not comparable to a vial per milligram.
- Multi-vial kits priced as though they were a single vial, which would falsely top a ranking.
- Any dose we would have to infer from a filename, a lot code or a URL rather than read from the page.
- Listings from other comparison sites. We price stores, not aggregators.
Why are retail and wholesale listed separately?
The two are separated by how a seller sells, not by how large the product is. A retail store lists a price you can pay and ships to an individual — a retailer selling a ten-vial kit is still retail. A wholesale supplier quotes on enquiry, prices by the gram, and sets a minimum order that does not apply to an individual buyer.
Wholesale per-milligram figures are lower by an order of magnitude, so mixing them into a retail ranking would bury every store a reader can actually buy from. They live in separate comparisons, always.
What if I can't find a vendor on this list?
A vendor missing from a comparison does not mean anything is wrong with them. There are a few ordinary reasons, and none of them is a judgement about the business:
- We have not added them yet. The index grows every week, and it will never be finished. If you know a store we are missing, tell us and we will look at it.
- They are in the other directory. Retail stores and wholesale suppliers are kept in separate lists, so a supplier will not appear among retail results.
- They do not publish prices publicly. Some sellers quote only on request or over chat, so there is no listed price for us to compare. They may still have a profile here with everything else we hold.
- We are holding their listings back for now. If we cannot reach a store, we pause its prices rather than show figures we cannot stand behind. A store being unreachable is not evidence that it has closed, and we will not treat it as though it were.
- They have closed. We say that only when we have something that actually shows it.
Can a vendor pay for a better price ranking?
Only through PeptidesFinder Trusted, and only by passing every trust check. Vendors can also pay for a listing upgrade, and one vendor at a time can pay to be the featured partner at the top of the directory. Paid placement is labelled wherever it appears. What a payment never changes:
- A price. Prices come from the vendor's storefront and nowhere else.
- The order of the list. Sorted by cost per milligram. One exception: up to three PeptidesFinder Trusted vendors can sit above the list. Trusted is paid, but only vendors who pass every trust check qualify, and their price must be within 30% of the cheapest.
- A trust signal. Testing, documents, reviews and shipping facts are read from evidence, and a paid vendor with no COA on file shows no COA on file.
- A review. Reviews are written by members and screened before publication.
- How a fact on file reads. A fact is on file when we hold the record behind it: a certificate an editor approved, a claimed listing, a shipping or payment detail. Paid plans make getting facts on file easier, because we read and enter the certificates, and never make one read better.
What if a price here is wrong?
Prices are subject to occasional error. An index this size is never perfectly current. We work on it daily, and we would still ask you to double-check the price on the vendor's own page before you buy.
If a price looks wrong, use "Report a price issue" on its row. A report does not change the listing by itself. It moves the listing to the front of our checks, and what the store's own page shows then decides what happens to the listing. Each report gets its own page where you can follow it.