SS-31

As of September 27, 2026, PepAssess found SS-31 at 124 vendors. Lowest price $1.70/mg, median $4.50/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 · out of stock	5, 10	$49 ↗	—	78
2	Optima Supplyoptimasupply.is	50	$175 ↗	$3.50	77
3	Alpha Peptidesalpha-peptides.com	10	$38 ↗	$3.76	77
4	Hydro Research Peptideshydroresearchpeptides.com	50	$175 ↗	$3.50	76
5	STSports Technology Labssportstechnologylabs.com	10	$40 ↗	$4.00	76
6	Peptides Collectivepeptidescollective.com	10, 50	$52 ↗	—	72
7	Nationwide Peptidesnationwidepeptides.com	5, 10, 50	$48 ↗	—	70
8	Licensed Peptideslicensedpeptides.com	10, 30, 50	$100 ↗	—	69
9	Royal Peptides USA Canadaroyal-peptides.com	10, 30, 50	$65 ↗	—	68
10	Northwest Peptidesnorthwestpeptides.com	10, 50	$70 ↗	—	67
11	Nextgen Pepsnextgenpeps.com	—	$63 ↗	—	67
12	My Amino Labmyaminolab.com	10	$31 ↗	$3.10	66
13	OBONYX BIOLABSonyxbiolabs.com	10, 50	$65 ↗	—	66
14	Saiyan Medsaiyanmed.com	10, 50	$110 ↗	—	65
15	Core Research Peptidescoreresearchpeptides.com	10	$71 ↗	$7.10	64
16	Fit Aminosfitaminos.com	—	$75 ↗	—	63
17	Everest Peptideseverestpeptides.com	10, 50	$0.00 ↗	—	62
18	Livewell Peptideslivewellpeptides.com	10, 50	$65 ↗	—	62
19	American Peptidesamericanpeptides.us	10, 30, 50	$70 ↗	$4.30	61
20	Blank Peptidesblankpeptides.com	10	$70 ↗	$7.00	61
21	Peptide Giantspeptidegiants.com	10, 50	$50 ↗	—	61
22	VMAX Peptidesvmaxpeptides.com	10, 50	$30 ↗	—	61
23	Advanced Research Peptidesadvancedresearchpep.com	10, 50	$40 ↗	—	60
24	Aurevenaaurevenaresearch.com	10, 50	$110 ↗	—	59
25	Koi Peptideskoipeptides.com	10	$50 ↗	$5.00	58
26	AAscension Peptidesascensionpeptides.com	10	$80 ↗	$8.00	58
27	Kylo Peptideskylopeptides.com	—	$60 ↗	—	58
28	Amino Science Labsaminoscience.io	10	$79 ↗	$7.90	57
29	Prime Peptide Solutionsprimepepsolutions.com	—	$51 ↗	—	57
30	ZZENERGYzenergyusa.com	10, 30, 50	$45 ↗	—	56
31	Rejuven8 Peptidesrejuven8peptides.com	10	$40 ↗	$4.00	55
32	Amino Researchaminoresearch.net	10	$50 ↗	$5.00	55
33	Receptor Chemreceptorchem.co.uk	—	$35 ↗	—	55
34	Well Elevationwellelevation.com	10	$46 ↗	$4.59	54
35	BCBiotech Compoundsbiotechcompounds.com	50	$100 ↗	$2.00	53
36	Evolve Peptidesevolvepeptides.com	10, 50	$60 ↗	$6.00	53
37	Pinnacle Peptide Labspinnaclepeptidelabs.com	10	$70 ↗	$7.00	53
38	Disguised Alphadisguisedalpha.com	10, 50	$70 ↗	—	53
39	nova biolabsnova-biolabs.com	10, 50	$350 ↗	—	53
40	Elite Research Labseliteresearchlab.com	10	$50 ↗	$5.00	52
41	Vylix Research Lab Labvylixresearchlab.com	10	$60 ↗	$6.00	52
42	StrikePoint Peptidesstrikepointpeptides.com	—	$74 ↗	—	52
43	Nextechlaboratoriesnextechlaboratories.com	50	$115 ↗	$2.30	51
44	One Aminosoneaminos.com	—	$45 ↗	—	51
45	Rhome Researchrhomeresearch.com	10	$55 ↗	$5.50	50
46	Mile High Compoundsmilehighcompounds.is	—	$70 ↗	—	50
47	Thrive Peptidesthrivepeptides.us	10	$45 ↗	$4.50	49
48	Peptides Costa Ricapeptidescostarica.net	10, 25	$54,211 ↗	—	49
49	AMArizona-mallarizona-mall.com	50	$2.00 ↗	—	49
50	Swiss Chemsswisschems.is	5, 10	$42 ↗	—	48
51	Yoursomayoursoma.com	10, 25	$59 ↗	—	48
52	Alpha Pro Peptidesalphapropeptides.com	10, 50	$55 ↗	$2.10	47
53	Retaone Labsretaonelabs.com	10	$27 ↗	$2.70	47
54	STSwiss-Tides.Comswiss-tides.com	10	$50 ↗	$5.00	47
55	Ascend Scienceascend.science	—	$75 ↗	—	47
56	Peaklabpeptides.Compeaklabpeptides.com	10, 50	$82 ↗	—	46
57	Core Peptides Directcorepeptidesdirect.com	10, 50	$40 ↗	$2.56	45
58	PEPTIDE.Powerpeptidepowereu.is	10	$79 ↗	—	45
59	Auau.peptislim.com	10	$111 ↗	—	45
60	Peptide Partnerspeptide.partners	10, 20, 50, 100, 250, 500	$110 ↗	—	45
61	Echo Peptidesechopeptides.co	10	$90 ↗	$9.00	44
62	Kalyx Labskalyx-labs.com	10, 50	$50 ↗	—	44
63	PPurePharmaspurepharmas.com	10, 50	$49 ↗	—	44
64	GenX Peptidesgenx.bio	50	$89 ↗	$1.78	43
65	Apex Aminoapexamino.com	50	$150 ↗	$3.00	43
66	Trulab Peptidestrulabpeptides.com	10	$58 ↗	$5.80	42
67	Apollo Peptide Sciencesapollopeptidesciences.com	10	$100 ↗	$10	42
68	BBioPure Peptidesbiopurepeptides.com	10	$100 ↗	$10	42
69	Sparta Labsspartalabs.net	—	$75 ↗	—	42
70	Trutide Solutionstrutidesolutions.com	10	$45 ↗	$4.50	41
71	OOptic Labsopticlabsau.com	10	$62 ↗	$6.20	41
72	Renova Peptidesrenovapeptides.net	10	$20 ↗	—	41
73	Vortex Researchvortexresearch.net	10	$45 ↗	$4.50	40
74	VAYN – Research Peptidesvayn.co	—	$35 ↗	—	40
75	Alpha Pepsalphapeps.com	10, 50	$25 ↗	$1.70	39
76	DDDirect Doctor Supplydirectdoctorsupply.com	14, 15, 30, 50	$1.00 ↗	$2.40	39
77	Bench Grade Peptidesbenchgradepeptides.com	10, 50	$80 ↗	$4.42	39
78	Pure Peptide Factorypurepeptidefactory.com	5, 10, 50	$55 ↗	—	39
79	999PurityPeptides99puritypeptides.com	10, 50	$80 ↗	—	39
80	RRivn Researchrivnresearch.com	5, 10	$60 ↗	—	38
81	Novaglo Researchnovagloresearch.com	10, 40, 50	$40 ↗	—	38
82	GMR Peptidesgmrpeptides.com	10, 50	$59 ↗	—	37
83	Vertex Labsvertexpeptideslab.org	—	$59 ↗	—	37
84	BioInfinitybioinfinity.co · out of stock	—	$55 ↗	—	37
85	QLQing Li Peptideqinglishangmao.com	10	$0.00 ↗	—	36
86	Priority Aminospriorityaminos.com	10	$58 ↗	$5.80	35
87	Ez Pepsezpeps.com	6, 12, 30, 50, 60	$100 ↗	—	35
88	Midwest Peptidemidwestpeptide.com	—	$60 ↗	—	35
89	Bulk Peptidesbulkpeptides.com	10	$200 ↗	$20	34
90	Silverstone Labs Cosilverstonelabsco.com	—	$42 ↗	—	34
91	Valor Peptidesvalorpeptides.com	—	$50 ↗	—	34
92	AusBioLabsausbiolabs.shop	10, 50	$89 ↗	—	32
93	Zesty Ratzestyratresearch.com	5, 10	$50 ↗	—	32
94	Peptaurapeptaura.com	—	$16 ↗	—	32
95	XLR8xlr8peptides.com	10	$90 ↗	$9.00	31
96	Peptides For Lesspeptidesforless.net	—	$140 ↗	—	31
97	Voltera Sciencesvolterasciences.com	10, 50	$50 ↗	—	30
98	True Peptide Labstruepeptidelabs.com	50	$50 ↗	$3.20	29
99	Helix Bio Chemhelixbiochem.com	10, 50	$94 ↗	$3.86	28
100	Kinetic Compoundskineticcompounds.st	10	$65 ↗	—	28
101	NOX Peptides Onlinenoxpeptides.st	10	$70 ↗	—	28
102	Void Researchvoidresearch.shop · out of stock	—	$45 ↗	—	28
103	Baltic Peptidesbalticpeptides.com	10, 50	$50 ↗	—	27
104	WFN Researchwfnresearch.com	10	$500 ↗	—	24
105	Core Power Peptidescorepowerpeptides.is	10, 50	$60 ↗	$6.00	23
106	GigaCompoundsgigacompounds.com	10, 50	$40 ↗	$2.60	22
107	Cheaper Peptidescheaperpeptides.com	50	$150 ↗	$3.00	21
108	Ps Peptidespspeptides.com	10	$65 ↗	$6.50	21
109	REVITRALABS.COMrevitralabs.com	10	$69 ↗	$6.90	20
110	Data Peptidesdatapeptides.com	50	$99 ↗	$1.98	19
111	Northline Labsnorthlinelabs.org	10, 50	$60 ↗	—	17
112	Pioneer Peptidepioneerpeptide.ca	10, 50	$48 ↗	—	16
113	Flowptidesflowptides.com	—	$99 ↗	—	16
114	Project Aminoprojectamino.io	—	$150 ↗	—	16
115	Huatai Peptidehuataipeptide.com	10, 25, 50	$116 ↗	—	14
116	Orvella Labsorvellalab.com	—	$40 ↗	—	12
117	Retatrutide Canada Buyretatrutidecanadabuy.ca	50	$141 ↗	—	12
118	Futureproof Peptidesfutureproofpeptides.com	10	$40 ↗	—	11
119	Peptimepeptime.org	50	$640 ↗	$13	8
120	Retatrutide Bestellenretatrutidenederland.com · out of stock	500, 1000	$40 ↗	—	8
121	Retatrutide Kopenretatrutidekopen.com	—	$50 ↗	—	8
122	BSBlackline Scientificblacklinescientific.com	10, 50	$50 ↗	$3.10	7
123	Purity Peptidespuritypeptides.us	10	$49 ↗	$4.90	7
124	EElegance Peptideselegancelaboratories.com	10, 50	$46 ↗	$3.76	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.