Oxytocin

As of September 27, 2026, PepAssess found Oxytocin at 76 vendors. Lowest price $2.50/mg, median $7.10/mg. Vendors are ranked by evidence score, not by price or payment.

#	Vendor	Doses (mg)	From	Best $/mg	Evidence score ⓘ
1	Alpha Peptidesalpha-peptides.com	10	$40 ↗	$3.96	77
2	BioLongevity Labsbiolongevitylabs.com	10	$65 ↗	$6.50	77
3	Peptides Collectivepeptidescollective.com	10	$25 ↗	$2.50	72
4	Nationwide Peptidesnationwidepeptides.com	2, 5, 10	$36 ↗	—	70
5	Licensed Peptideslicensedpeptides.com	10, 20, 30, 40	$77 ↗	—	69
6	Royal Peptides USA Canadaroyal-peptides.com	10	$70 ↗	$7.00	68
7	Northwest Peptidesnorthwestpeptides.com	10	$60 ↗	$6.00	67
8	Nextgen Pepsnextgenpeps.com · out of stock	—	$54 ↗	—	67
9	My Amino Labmyaminolab.com	5	$35 ↗	$7.00	66
10	Saiyan Medsaiyanmed.com	5, 10	$46 ↗	—	65
11	Paramount Peptidesparamountpeptides.com	10	$55 ↗	$5.53	64
12	Ez Peptidesezpeptides.com	10	$58 ↗	$5.80	64
13	Core Research Peptidescoreresearchpeptides.com	2	$24 ↗	$12	64
14	Fit Aminosfitaminos.com	—	$56 ↗	—	63
15	Blank Peptidesblankpeptides.com	5	$60 ↗	$12	61
16	Peptide Giantspeptidegiants.com	2, 5, 10	$20 ↗	—	61
17	VMAX Peptidesvmaxpeptides.com	2, 5	$30 ↗	—	61
18	Ascension Peptidesascensionpeptides.com	2	$50 ↗	$25	58
19	Alpha Omega Peptidealphaomegapeptide.com	2, 10	$35 ↗	—	58
20	Rejuven8 Peptidesrejuven8peptides.com	2	$45 ↗	$23	55
21	Well Elevationwellelevation.com	5	$27 ↗	$5.40	54
22	Simple Peptidesimplepeptide.com	2, 10	$35 ↗	—	54
23	Evolve Peptidesevolvepeptides.com	2, 5, 10	$25 ↗	$5.50	53
24	Biotech Compoundsbiotechcompounds.com	10	$76 ↗	$7.60	53
25	Disguised Alphadisguisedalpha.com	—	$40 ↗	—	53
26	Modern Research Peptidesmodernresearchpeptides.net	2, 5	$30 ↗	$7.20	52
27	Elite Research Labseliteresearchlab.com	2	$30 ↗	$15	52
28	StrikePoint Peptidesstrikepointpeptides.com	—	$26 ↗	—	52
29	Mile High Compoundsmilehighcompounds.is	—	$60 ↗	—	50
30	Lavi MDlavimd.store	—	$110 ↗	—	50
31	Almighty Peptidesalmightypeptides.com	5	$60 ↗	$12	49
32	Arizona-mallarizona-mall.com	2	$1.00 ↗	$16	49
33	Pure Bio Labspurebiolabs.com	2	$50 ↗	$25	49
34	Peptides Costa Ricapeptidescostarica.net	5	$47,435 ↗	—	49
35	Vyal Labsvyallabs.com	—	$69 ↗	—	49
36	Yoursomayoursoma.com	2	$49 ↗	$25	48
37	Swiss Chemsswisschems.is	2, 5	$22 ↗	—	48
38	Pinnacle Performancepinnaclep3.com	5	$50 ↗	$10	47
39	Cenexa Labscenexalabs.com	2, 4, 10	$39 ↗	—	47
40	Peaklabpeptides.Compeaklabpeptides.com	2	$26 ↗	$13	46
41	Atomixatomixresearch.com	5	$35 ↗	$7.00	45
42	PEPTIDE.Powerpeptidepowereu.is	2, 10	$62 ↗	—	45
43	PurePharmaspurepharmas.com	10	$69 ↗	$6.90	44
44	Apex Aminoapexamino.com	5	$40 ↗	$8.00	43
45	GenX Peptidesgenx.bio	2	$30 ↗	$15	43
46	Biotech Peptidesbiotechpeptides.com	10	$45 ↗	$4.50	42
47	Alpha BioMedalphabiomedlabs.com	10	$55 ↗	$5.50	42
48	Sparta Labsspartalabs.net	—	$45 ↗	—	42
49	Alpha Pepsalphapeps.com	2, 10	$40 ↗	$5.50	39
50	Direct Doctor Supplydirectdoctorsupply.com	5, 10	$44 ↗	$6.00	39
51	Pure Peptide Factorypurepeptidefactory.com	2, 5, 10	$25 ↗	—	39
52	99PurityPeptides99puritypeptides.com	10	$75 ↗	—	39
53	Rivn Researchrivnresearch.com	5	$35 ↗	$7.00	38
54	Novaglo Researchnovagloresearch.com	—	$20 ↗	—	38
55	Core Peptidescorepeptides.com	10	$52 ↗	$5.20	36
56	Ez Pepsezpeps.com	4, 5, 6	$34 ↗	—	35
57	Bulk Peptidesbulkpeptides.com	5	$120 ↗	$24	34
58	Valor Peptidesvalorpeptides.com · out of stock	—	$59 ↗	—	34
59	AusBioLabsausbiolabs.shop	10	$149 ↗	—	32
60	Peptaurapeptaura.com	—	$12 ↗	—	32
61	Ms Peptidesmspeptides.com	5	$36 ↗	$7.20	31
62	XLR8xlr8peptides.com	5	$60 ↗	$12	31
63	True Peptide Labstruepeptidelabs.com	—	$27 ↗	—	29
64	Helix Bio Chemhelixbiochem.com	10	$72 ↗	$7.20	28
65	Glacier Aminosglacieraminos.shop	10	$56 ↗	$5.60	27
66	Baltic Peptidesbalticpeptides.com · out of stock	10	$35 ↗	—	27
67	WFN Researchwfnresearch.com	2	$250 ↗	—	24
68	Raw Aminorawamino.com	10	$60 ↗	$6.00	22
69	Ps Peptidespspeptides.com	5, 10	$40 ↗	—	21
70	Northline Labsnorthlinelabs.org	—	$70 ↗	—	17
71	Adera Stateaderastate.com	—	$65 ↗	—	16
72	Pioneer Peptidepioneerpeptide.ca	5, 10	$40 ↗	—	16
73	Huatai Peptidehuataipeptide.com	5, 10	$57 ↗	—	14
74	Futureproof Peptidesfutureproofpeptides.com	10	$35 ↗	—	11
75	Peptimepeptime.org	2, 5	$64 ↗	$22	8
76	Retatrutide Kopenretatrutidekopen.com	5	$80 ↗	—	8

Prices come from each vendor's own public store data and may exclude shipping, discounts or bulk pricing. Research-use products; not medical advice.