DSIP

As of September 27, 2026, PepAssess found DSIP at 150 vendors. Lowest price $2.50/mg, median $5.96/mg. Vendors are ranked by evidence score, not by price or payment.

#	Vendor	Doses (mg)	From	Best $/mg	Evidence score ⓘ
1	Pivot Labs Globalpivotlabsglobal.com	5	$36 ↗	$7.20	78
2	BBioLongevity Labsbiolongevitylabs.com	5	$56 ↗	$11	77
3	Optima Supplyoptimasupply.is	—	$45 ↗	—	77
4	Alpha Peptidesalpha-peptides.com	5, 10	$21 ↗	—	77
5	STSports Technology Labssportstechnologylabs.com	5	$23 ↗	$4.70	76
6	Hydro Research Peptideshydroresearchpeptides.com	5	$45 ↗	$9.00	76
7	Peptides Collectivepeptidescollective.com	10	$59 ↗	$5.90	72
8	Nationwide Peptidesnationwidepeptides.com	5, 10, 15	$33 ↗	—	70
9	Ng Peptidengpeptide.com	30	$35 ↗	—	69
10	Licensed Peptideslicensedpeptides.com	5, 100, 500, 750	$54 ↗	—	69
11	Royal Peptides USA Canadaroyal-peptides.com	5, 10	$45 ↗	$35	68
12	Northwest Peptidesnorthwestpeptides.com	10	$50 ↗	$5.00	67
13	Evo Labs Researchevolabsresearch.co	—	$40 ↗	—	67
14	My Amino Labmyaminolab.com	10	$31 ↗	$3.10	66
15	OBONYX BIOLABSonyxbiolabs.com	10, 50	$90 ↗	—	66
16	Saiyan Medsaiyanmed.com	5, 10	$55 ↗	—	65
17	Ez Peptidesezpeptides.com	10	$58 ↗	$5.80	64
18	Paramount Peptidesparamountpeptides.com	5, 10	$51 ↗	$6.54	64
19	Core Research Peptidescoreresearchpeptides.com	5	$34 ↗	$6.80	64
20	Fit Aminosfitaminos.com	10	$54 ↗	$5.40	63
21	Everest Peptideseverestpeptides.com	5	$0.00 ↗	$5.25	62
22	Livewell Peptideslivewellpeptides.com	5, 10, 20	$42 ↗	—	62
23	Blank Peptidesblankpeptides.com	10	$65 ↗	$6.50	61
24	Improved Peptidesimprovedpeptides.com	5	$52 ↗	$10	61
25	Peptide Giantspeptidegiants.com	5, 10	$22 ↗	—	61
26	VMAX Peptidesvmaxpeptides.com	5, 10, 15	$30 ↗	—	61
27	American Peptidesamericanpeptides.us · out of stock	5	$55 ↗	—	61
28	Pepticopeptico.com	10	$25 ↗	$2.50	60
29	Advanced Research Peptidesadvancedresearchpep.com	10	$32 ↗	$3.20	60
30	Legionlegionpeptides.com	5, 15	$100 ↗	—	60
31	Aurevenaaurevenaresearch.com	5, 15	$30 ↗	—	59
32	AAscension Peptidesascensionpeptides.com	10	$60 ↗	$6.00	58
33	Alpha Omega Peptidealphaomegapeptide.com	5	$35 ↗	$7.00	58
34	Amino Science Labsaminoscience.io	10	$37 ↗	$3.70	57
35	Prime Peptide Solutionsprimepepsolutions.com	—	$30 ↗	—	57
36	ZZENERGYzenergyusa.com	5, 10	$39 ↗	—	56
37	Amino Researchaminoresearch.net	10	$40 ↗	$4.00	55
38	Rejuven8 Peptidesrejuven8peptides.com	15	$65 ↗	$4.33	55
39	Receptor Chemreceptorchem.co.uk	—	$15 ↗	—	55
40	Well Elevationwellelevation.com	10	$43 ↗	$4.32	54
41	Simple Peptidesimplepeptide.com	5	$35 ↗	$7.00	54
42	BCBiotech Compoundsbiotechcompounds.com	15	$44 ↗	$2.93	53
43	Evolve Peptidesevolvepeptides.com	5	$45 ↗	$9.00	53
44	Pinnacle Peptide Labspinnaclepeptidelabs.com	5	$50 ↗	$10	53
45	Disguised Alphadisguisedalpha.com	5, 10, 20, 30, 60	$50 ↗	—	53
46	nova biolabsnova-biolabs.com	10	$380 ↗	—	53
47	Modern Research Peptidesmodernresearchpeptides.net	10	$32 ↗	$3.15	52
48	Vylix Research Lab Labvylixresearchlab.com	5, 10	$40 ↗	$4.00	52
49	StrikePoint Peptidesstrikepointpeptides.com	2, 5, 15	$29 ↗	—	52
50	Elite Research Labseliteresearchlab.com	5, 10	$35 ↗	—	52
51	Nextechlaboratoriesnextechlaboratories.com	10	$45 ↗	$4.50	51
52	One Aminosoneaminos.com	—	$50 ↗	—	51
53	Puratek Peptidespuratekpeptides.com	10	$35 ↗	$3.50	50
54	PPrime Lab Peptidesprimelabpeptides.com	5	$40 ↗	$8.00	50
55	Mile High Compoundsmilehighcompounds.is	—	$50 ↗	—	50
56	LMLavi MDlavimd.store	—	$70 ↗	—	50
57	Blueridgepeptides.Comblueridgepeptides.com	10	$35 ↗	$3.50	49
58	Tydestydes.is	5	$40 ↗	$8.00	49
59	Almighty Peptidesalmightypeptides.com	5	$48 ↗	$9.60	49
60	PBPure Bio Labspurebiolabs.com	5	$55 ↗	$11	49
61	StarBiostarbio.org	—	$30 ↗	—	49
62	Peptides Costa Ricapeptidescostarica.net	5, 10, 15	$45,176 ↗	—	49
63	AMArizona-mallarizona-mall.com	15	$5.00 ↗	—	49
64	Yoursomayoursoma.com	6	$39 ↗	$6.50	48
65	Myoasis Labsmyoasislabs.com	5	$38 ↗	$7.50	48
66	Swiss Chemsswisschems.is	2	$25 ↗	$12	48
67	Alpha Pro Peptidesalphapropeptides.com	10	$41 ↗	$4.10	47
68	PPPinnacle Performancepinnaclep3.com	5	$40 ↗	$8.00	47
69	Cenexa Labscenexalabs.com	5, 10, 15	$42 ↗	—	47
70	Ascend Scienceascend.science	—	$50 ↗	—	47
71	Peaklabpeptides.Compeaklabpeptides.com	2, 5, 10, 15	$34 ↗	—	46
72	HHonest Peptidehonestpeptide.com	5	$28 ↗	$5.60	45
73	Core Peptides Directcorepeptidesdirect.com	5	$30 ↗	$6.00	45
74	Atomixatomixresearch.com	5	$35 ↗	$7.00	45
75	PEPTIDE.Powerpeptidepowereu.is	5	$85 ↗	—	45
76	Auau.peptislim.com	10	$111 ↗	—	45
77	Peptide Partnerspeptide.partners	5, 10, 25, 50	$75 ↗	—	45
78	Secra Labssecralabs.com · out of stock	5	$45 ↗	—	45
79	Kalyx Labskalyx-labs.com	5, 10	$27 ↗	—	44
80	PPurePharmaspurepharmas.com	5, 10	$39 ↗	—	44
81	Peppy&Mepeppyandme.com	5, 10	$20 ↗	$3.50	43
82	Apex Aminoapexamino.com	5	$40 ↗	$8.00	43
83	PepMarketpepmarket.net	—	$45 ↗	—	43
84	Trulab Peptidestrulabpeptides.com	5, 10	$29 ↗	$4.90	42
85	ABAlpha BioMedalphabiomedlabs.com	5, 10	$47 ↗	$6.00	42
86	Biotech Peptidesbiotechpeptides.com	5	$44 ↗	$8.80	42
87	BBioPure Peptidesbiopurepeptides.com	5, 10	$60 ↗	$10	42
88	Sparta Labsspartalabs.net	—	$55 ↗	—	42
89	Trutide Solutionstrutidesolutions.com	10	$50 ↗	$5.00	41
90	OOptic Labsopticlabsau.com	10	$62 ↗	$6.20	41
91	VAYN – Research Peptidesvayn.co	—	$21 ↗	—	40
92	Vortex Researchvortexresearch.net	—	$30 ↗	—	40
93	Super Peptidessuperpeptides.com	10	$49 ↗	$4.90	39
94	Alpha Pepsalphapeps.com	5, 10	$35 ↗	$5.00	39
95	DDDirect Doctor Supplydirectdoctorsupply.com	10	$50 ↗	$5.00	39
96	Bench Grade Peptidesbenchgradepeptides.com	5, 15	$43 ↗	$5.93	39
97	Orovia Wellness -oroviawellness.com	2, 10, 20, 30, 40	$80 ↗	—	39
98	Pure Peptide Factorypurepeptidefactory.com	2, 5, 15	$30 ↗	—	39
99	999PurityPeptides99puritypeptides.com	10	$65 ↗	—	39
100	Novaglo Researchnovagloresearch.com	5	$20 ↗	$4.00	38
101	RRivn Researchrivnresearch.com	5, 10	$35 ↗	—	38
102	GMR Peptidesgmrpeptides.com	10	$30 ↗	$3.00	37
103	Dynotidesdynotides.shop	10	$64 ↗	$6.40	37
104	Vertex Labsvertexpeptideslab.org	—	$59 ↗	—	37
105	BioInfinitybioinfinity.co	—	$65 ↗	—	37
106	CCore Peptidescorepeptides.com	5	$41 ↗	$8.20	36
107	QLQing Li Peptideqinglishangmao.com	5	$0.00 ↗	—	36
108	Ez Pepsezpeps.com	5, 6, 10, 12	$50 ↗	—	35
109	Priority Aminospriorityaminos.com	5, 10, 15	$35 ↗	—	35
110	Midwest Peptidemidwestpeptide.com	—	$30 ↗	—	35
111	Bulk Peptidesbulkpeptides.com	5	$140 ↗	$28	34
112	Valor Peptidesvalorpeptides.com	5, 10	$45 ↗	—	34
113	Zesty Ratzestyratresearch.com	10	$46 ↗	$4.60	32
114	Amc Essentialsamc-essentials.com	5	$30 ↗	$6.00	32
115	Peptaurapeptaura.com	5	$9.13 ↗	$9.62	32
116	AusBioLabsausbiolabs.shop	10	$89 ↗	—	32
117	Ms Peptidesmspeptides.com	5	$26 ↗	$5.20	31
118	Peptides For Lesspeptidesforless.net	5, 10	$35 ↗	—	31
119	XLR8xlr8peptides.com	10, 15	$60 ↗	—	31
120	Voltera Sciencesvolterasciences.com	10	$50 ↗	$5.00	30
121	AIO Peptidesaiopeptides.com	5	$24 ↗	$4.80	29
122	True Peptide Labstruepeptidelabs.com	5	$28 ↗	$5.60	29
123	Helix Bio Chemhelixbiochem.com	10	$83 ↗	$8.30	28
124	Enhanced Chemsenhancedchems.com	5	$45 ↗	$9.00	28
125	Kinetic Compoundskineticcompounds.st	10	$48 ↗	—	28
126	NOX Peptides Onlinenoxpeptides.st	10	$50 ↗	—	28
127	Void Researchvoidresearch.shop	—	$30 ↗	—	28
128	Glacier Aminosglacieraminos.shop	10	$60 ↗	$6.00	27
129	Baltic Peptidesbalticpeptides.com	5	$35 ↗	—	27
130	PPeptidesRx (Peptides Inc)peptidesinc.com	—	$377 ↗	—	24
131	WFN Researchwfnresearch.com	5	$145 ↗	—	24
132	Core Power Peptidescorepowerpeptides.is	2, 5	$40 ↗	—	23
133	GigaCompoundsgigacompounds.com	5	$35 ↗	$7.00	22
134	Raw Aminorawamino.com	5	$46 ↗	$9.20	22
135	Ps Peptidespspeptides.com	5, 10	$40 ↗	—	21
136	Northline Labsnorthlinelabs.org	—	$80 ↗	—	17
137	Adera Stateaderastate.com	—	$65 ↗	—	16
138	Pioneer Peptidepioneerpeptide.ca	5, 10	$35 ↗	—	16
139	Project Aminoprojectamino.io	—	$60 ↗	—	16
140	Huatai Peptidehuataipeptide.com	5, 10	$44 ↗	—	14
141	Retatrutide Canada Buyretatrutidecanadabuy.ca	10	$51 ↗	—	12
142	Futureproof Peptidesfutureproofpeptides.com	5	$23 ↗	—	11
143	Peptimepeptime.org	5, 10, 15	$72 ↗	$14	8
144	Retatrutide Bestellenretatrutidenederland.com	15	$70 ↗	—	8
145	Retatrutide Kopenretatrutidekopen.com	10, 15	$50 ↗	—	8
146	TPeptide Technologiespeptidetech.is	5, 10	$30 ↗	$3.25	7
147	BSBlackline Scientificblacklinescientific.com	10	$45 ↗	$4.50	7
148	Purity Peptidespuritypeptides.us	5, 10	$29 ↗	$4.90	7
149	BScience Based Peptidessciencebasedpeptides.com	—	$30 ↗	—	7
150	EElegance Peptideselegancelaboratories.com	5, 10	$36 ↗	$5.10	3

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