ERP posted an updated USA warehouse inventory list today. Prices below are copied exactly as posted by the vendor. Peptide Index does not sell anything. To order, use the contact on ERP's Vetted Vendor profile, and check the testing library before buying. Warehouse A （Portland） RT5 -$69 RT10 - $ 89 RT15 - $ 129 RT20 - $149 RT30 - $179 RT40 - $239 RT60 -$299 MS10 -$69 MS20 - $119 MS40 -$179 GHK-CU50 --$49 GHK-CU-100 --$69 Cagrilintide5 - $99 Sermorelin 5 - $79 Sermorelin 10 - $144 Tirzepatide5 - $54 Tirzepatide10 - $69 Tirzepatide15 - $74 Tirzepatide20 - $84 Tirzepatide30 - $109 Tirzepatide60 - $209 Ipamorelin-5 --$59 Ipamorelin-10 --$84 Glow70 - $189 klow80 - $194 BB10 - $109 BB20 - $189 BBG70 - $189 ET10 - $159 G25 - $49 KPV5 - $54 KP10 - $79 5AM - $49 10AM - $64 50AM - $89 SK10 - $74 XA10 - $74 LC216 - $99 VP5 - $94 VP10 - $154 DS10 - $79 CP10 - $99 CP20 - $189 TB5 - $84 VE10 - $114 PT141 - $79 5AD - $109 Cor20 - $114 OT5 - $79 ADA5 - $64 ADA10 - $108 TY10 - $79 DS5 - $57 DS10 - $79 AU50 - $59 BC10 - $69 BT10 - $139 MT1 - $59 MT2 - $59 2S10 -$89 ET10 -$59 ET50 -$159 Tesamorelin5 -$99 Tesamorelin10 -$169 Tesamorelin20 - $309 IGF0.1 -$59 IGF1 -$229 lipocwithout B12 - $79 GHRP-2 Acetate 10 - $64 CJC-1295 without DAC 5 - $79 Snap-8 10mg - $59 Pinealon 10mg -$89 Gonadorelin Acetate 5mg - $104 EL5 (Eloralintide) - $184 EL10 (Eloralintide) - $339 VE20 (Vesugen) - $168 NJ500 - $74 NJ1000 - $ 129 BAC water 3ml -$18 Kiss10 - $88 TA10 Thymosin Alpha - $189 GTT1500 - $99 Warehouse B （Delaware） CJC-1295 without DAC 5 --$79 CJC-1295 without DAC 10 --$144 CJC-1295 without DAC 5mg + Ipamorelin 5mg --$114 CJC-1295 without DAC 10mg + Ipamorelin 10mg --$189 Retatrutide 5 - $69 Retatrutide-10 --$89 Retatrutide-20--$149 Retatrutide-30 --$179 Retatrutide-40 --$234 Retatrutide-60 --$299 Semaglutide-5 --$44 Semaglutide 10mg --$64 Semaglutide 15mg --$74 Selank-5 --$49 Selank-10mg --$74 Selank-10mg --$74 Cagrilintide5 --$99 Cagrilintide10 --$144 GHK-CU50 --$49 GHK-CU-100 --$69

Peptide Index doesn't sell anything. To order, use the contact on Guangzhou Laixian Trading's Vetted Vendor profile. These are the vendor's starting prices for peptides from China, in USD per box of 10 vials unless the spec says otherwise. Contact the vendor for current pricing and availability. HGH 191AA(Somatropin) 6iu*10vials — $55 HGH 191AA(Somatropin) 10iu*10vials — $70 HGH 191AA(Somatropin) 12iu*10vials — $85 HGH 191AA(Somatropin) 15iu*10vials — $100 HGH 191AA(Somatropin) 24iu*10vials — $150 HGH 191AA(Somatropin) 36iu*10vials — $230 MT-1 10mg*10vials — $50 MT-2 (Melanotan 2 Acetate) 5mg*10vials — $50 MT-2 (Melanotan 2 Acetate) 10mg*10vials — $80 PT-141 10mg*10vials — $55 Gonadorelin Acetate 2mg*10vials — $35 DSIP 2mg*10vials — $25 DSIP 5mg*10vials — $35 DSIP 10mg*10vials — $65 DSIP 15mg*10vials — $95 Selank 5mg*10vials — $42 Selank 10mg*10vials — $62 Selank 30mg*10vials — $165 NA Selank amidate 30mg*10vials — $148 Oxytocin Acetate 2mg*10vials — $28 Oxytocin Acetate 5mg*10vials — $42 Oxytocin Acetate 10mg*10vials — $60 Epithalon 10mg*10vials — $45 Epithalon 40mg*10vials — $122 Epithalon 50mg*10vials — $142 BPC 157 2mg*10vials — $28 BPC 157 5mg*10vials — $38 BPC 157 10mg*10vials — $62 BPC 157 20mg*10vials — $120 BPC 2mg + TB 2mg 4mg*10vials — $55 BPC 5mg + TB 5mg 10mg*10vials — $90 BPC 10mg + TB 10mg 20mg*10vials — $178 ACE-031 1mg*10vials — $80 AICAR 50mg*10vials — $55 AICAR 100mg*10vials — $85 Adipotide 2mg*10vials — $95 Adipotide 5mg*10vials — $208 Semax 5mg*10vials — $42 Semax 10mg*10vials — $58 Semax 30mg*10vials — $150 NA Semax amidate 30mg*10vials — $163 Semax 10mg+Selank 10mg 20mg*10vials — $95 Semaglutide 2mg*10vials — $25 Semaglutide 5mg*10vials — $35 Semaglutide 10mg*10vials — $45 Semaglutide 15mg*10vials — $58 Semaglutide 20mg*10vials — $70 Semaglutide 30mg*10vials — $95 SS-31 10mg*10vials — $85 SS-31 50mg*10vials — $345 Tirzepatide 5mg*10vials — $38

Kisspeptin gets talked about like a natural testosterone booster. The real story is more interesting: it's an upstream switch for the whole reproductive hormone axis. Here's the plain-English version. WHAT IT IS Kisspeptin is a family of neuropeptides made from the KISS1 gene. The forms you'll see named most often are kisspeptin-54 (the main circulating form in humans) and kisspeptin-10 (a shorter active piece). It lands on the kisspeptin receptor (KISS1R, once called GPR54). That signal tells the brain to release GnRH, which then tells the pituitary to release LH and FSH, which then drive the testes or ovaries. If someone has a genetic problem in kisspeptin signaling, puberty often fails and hypogonadotropic hypogonadism can show up. That genetic clue is a big reason researchers treat kisspeptin as a master switch for reproductive hormones, not a loose "libido peptide" story. WHAT PEOPLE USE IT FOR • Understanding how the brain turns on LH and FSH • Research into fertility and IVF egg-maturation triggers • Research in hypothalamic amenorrhea and other functional hypogonadism settings • Online discussion as a way to "wake up" natural testosterone signaling • Curiosity around libido when low LH / low testosterone is part of the picture WHAT THE RESEARCH ACTUALLY SHOWS • Healthy adults: giving kisspeptin raises LH (and often FSH) because it pushes GnRH first. In healthy men, IV kisspeptin-10 and kisspeptin-54 both raise gonadotropins; direct GnRH is still stronger in head-to-head work. • IVF: in a clinical study of 53 women, a single subcutaneous kisspeptin-54 injection triggered egg maturation after standard stimulation. Eggs matured, many fertilized, and some pregnancies followed. A later study in women at high risk of ovarian hyperstimulation syndrome (OHSS) also saw high maturation rates and no moderate/severe OHSS in that cohort. This is specialist fertility research, not a home protocol. • Hypothalamic amenorrhea: acute kisspeptin-54 can raise LH and FSH. When it was given twice daily for two weeks, the response shrank a lot (tachyphylaxis / desensitization). So "more often forever" is not what the clinical data support.

Kerui just updated their info, so here's the rundown. 📦 Shipping • US warehouse: $50, free over $400, about 2–5 days • China warehouse: $50, free over $500, about 12–20 days • New price lists: US dated 9/28, China dated September 2026 💳 Payment: crypto (BTC, USDT, USDC, ETH) or bank wire 🧪 Testing guarantee: purity over 98% and fill over 95%. If a Janoshik or Freedom Diagnostics test fails, they reship or give store credit. 📊 129 COAs reviewed (May to Oct 6) Most results came back between 98% and 99.9% purity. The newest tests (Selank, Semax, Tesamorelin and Retatrutide) are all clean. ⚠️ Educational content only. Not medical advice.

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