# Peptara Labs

> Peptara Labs is a research-grade peptide supplier and education resource. Strategic partner of Sheer Skincare International Corp (Philippine FDA LTO-3000014576518, SEC 2024120182028-11). Peptara Labs LLC is a registered United States company (Wyoming, Filing ID 2026-002031026), business address 30 N Gould St Ste 66115, Sheridan, WY 82801. 16 research-grade SKUs, with published third-party certificates of analysis at https://www.peptaralabs.io/coa where available. Worldwide shipping. 60-day money back guarantee on verified purity, certificate of analysis, and fulfillment.

> Compliance: Peptara Labs is a supplier of research-grade compounds and educational information, not a medical provider. It does not diagnose, prescribe, supervise treatment, or guarantee health outcomes. Products are research-grade and are not FDA-approved drugs. Nothing on the site is medical advice.

Real source. Real support. Real science.

## Core peptide pages

- [Retatrutide](https://www.peptaralabs.io/retatrutide)
- [Tirzepatide](https://www.peptaralabs.io/tirzepatide)
- [BPC-157](https://www.peptaralabs.io/bpc157)
- [GHK-Cu](https://www.peptaralabs.io/ghkcu)
- [CJC-1295 / Ipamorelin](https://www.peptaralabs.io/cjc-ipamorelin)
- [TB-500](https://www.peptaralabs.io/tb-500)
- [MT-2 (Melanotan-2)](https://www.peptaralabs.io/mt-2)
- [Semax](https://www.peptaralabs.io/semax)
- [Selank](https://www.peptaralabs.io/selank)
- [KLOW Combo](https://www.peptaralabs.io/klow)
- [MOTS-c](https://www.peptaralabs.io/mots-c)
- [Tesamorelin](https://www.peptaralabs.io/tesamorelin)
- [Epithalon](https://www.peptaralabs.io/epithalon)
- [SLU-PP-332](https://www.peptaralabs.io/slu-pp-332)
- [PT-141 (Bremelanotide)](https://www.peptaralabs.io/pt-141)
- [Glutathione](https://www.peptaralabs.io/glutathione)

## Buying and ordering

- [Homepage](https://www.peptaralabs.io/): full catalog, transparent pricing, email-signup 15% first-order discount
- [All peptides](https://www.peptaralabs.io/products): 16-vial research peptide catalog, 15 of 16 in live stock with add-to-cart; Tirzepatide discontinued
- [Research topic finder](https://www.peptaralabs.io/quiz): 60-second router to the compound pages for a research area
- [Order desk](https://www.peptaralabs.io/order): bulk and wholesale ordering workflow
- [Wholesale](https://www.peptaralabs.io/wholesale): larger-order inquiry path
- [Retatrutide price per vial](https://www.peptaralabs.io/retatrutide-price-per-vial): $205 retail ($10.25 per mg), email-signup $174 ($8.70 per mg). Kit, batch COA, and tracked shipping included.
- [Tirzepatide price per vial](https://www.peptaralabs.io/tirzepatide-price-per-vial): discontinued and not being restocked, last sold on August 31, 2026; no longer orderable. Price through that date: $92 retail ($4.60 per mg), email-signup $78 ($3.90 per mg). Kit, batch COA, and tracked shipping included.
- [BPC-157 price per vial](https://www.peptaralabs.io/bpc-157-price-per-vial): $138 retail ($6.90 per mg), email-signup $117 ($5.85 per mg). Kit, batch COA, and tracked shipping included.

## Buyer guides

- [Where to buy peptides](https://www.peptaralabs.io/where-to-buy-peptides): the five things to verify before ordering online, why peptides are not sold in stores, and how to check a vendor
- [Best peptide companies](https://www.peptaralabs.io/best-peptide-companies): peptide companies compared on five publicly verifiable criteria: batch COAs, named testing lab, endotoxin, served markets, and support. Not a ranking.
- [How to verify peptide purity](https://www.peptaralabs.io/how-to-verify-peptide-purity): reads one published certificate line by line: HPLC purity, mass spectrometry identity, safety panel, red flags, verifying with the issuing lab
- [Where to buy tirzepatide](https://www.peptaralabs.io/where-to-buy-tirzepatide): the two legitimate lanes, prescription and research-grade, what each one requires, and the checks that separate a real supplier from a listing. Peptara Labs research-grade tirzepatide is discontinued and not being restocked; it last sold on August 31, 2026 and is no longer orderable.
- [Compounded tirzepatide](https://www.peptaralabs.io/compounded-tirzepatide): what 503A and 503B pharmacy compounding is, why availability narrowed after the FDA shortage-list decision, and how compounded material differs from brand Zepbound and Mounjaro and from research-grade. Peptara Labs is not a pharmacy and does not compound; its research-grade tirzepatide is discontinued and not being restocked; it last sold on August 31, 2026 and is no longer orderable.
- [Where to buy retatrutide](https://www.peptaralabs.io/where-to-buy-retatrutide): why there is no approved retatrutide product anywhere and no prescription lane, what research-use-only means, and what to verify before ordering from any source.

## Trust and verification

- [Trust](https://www.peptaralabs.io/trust): partner entity, testing standards, quality guarantee, and support model
- [Reviews](https://www.peptaralabs.io/reviews): public review record and buyer feedback
- [Certificates of Analysis](https://www.peptaralabs.io/coa): published third-party certificates of analysis, tested by Titreon Analytical (ISO/IEC 17025:2017 aligned)
- [About](https://www.peptaralabs.io/about): team, certifications, third-party COA policy
- [Medical disclaimer](https://www.peptaralabs.io/medical-disclaimer): research-and-education lane, not medical advice
- [Athlete program](https://www.peptaralabs.io/athlete-program): sponsorship of fighters competing in Asian martial arts promotions. Not a supply arrangement, and no sponsored athlete is presented as using any product sold here.

## Education and guides

- [Peptide guides hub](https://www.peptaralabs.io/guides): complete guides for every compound: mechanism, dosing ranges reported in studies, side effects
- [Retatrutide complete guide](https://www.peptaralabs.io/guides/retatrutide-complete-guide)
- [Tirzepatide complete guide](https://www.peptaralabs.io/guides/tirzepatide-complete-guide)
- [BPC-157 complete guide](https://www.peptaralabs.io/guides/bpc157-complete-guide)
- [Reconstitution guide](https://www.peptaralabs.io/reconstitution): 4-step method, interactive calculator
- [How to reconstitute retatrutide](https://www.peptaralabs.io/how-to-reconstitute-retatrutide): what BAC water is, the mg per mL math for a 20mg vial at 1, 2 and 3 mL, and storage
- [How to reconstitute Melanotan 2](https://www.peptaralabs.io/how-to-reconstitute-melanotan-2): mixing steps, the mg per mL math for a 10mg vial at 1, 2 and 3 mL, unit conversions, and storage
- [BPC-157 and TB-500 stack](https://www.peptaralabs.io/bpc-157-tb-500-stack): two separate mechanism literatures, why no study tested the combination, and what stacking two vials means in practice
- [Glow peptide stack](https://www.peptaralabs.io/glow-peptide-stack): community label grouping GHK-Cu, BPC-157 and TB-500, the skin or wound-repair research behind each, and what KLOW actually contains
- [Peptide reconstitution calculator](https://www.peptaralabs.io/peptide-reconstitution-calculator): enter vial mg and bacteriostatic water mL to get mg per mL and U-100 syringe units. No presets and no dosing advice.

## Education articles

- [Blog hub](https://www.peptaralabs.io/blog): practical peptide education, sourcing standards, side effects, and handling
- [How to Read a Peptide Certificate of Analysis](https://www.peptaralabs.io/blog/reading-a-certificate-of-analysis)
- [How to Tell If Your Peptide Is Real](https://www.peptaralabs.io/blog/how-to-tell-if-your-peptide-is-real)
- [The Real Risk of Buying Peptides From Telegram Sellers](https://www.peptaralabs.io/blog/telegram-peptide-sellers-risk)
- [What to Understand Before a First Peptide Protocol](https://www.peptaralabs.io/blog/what-i-tell-patients-before-first-protocol)

## Dosage education

- [CJC-1295 ipamorelin dosage](https://www.peptaralabs.io/cjc-1295-ipamorelin-dosage): per-compound dosing reported in named human and animal studies, DAC versus no DAC, plus unit and reconstitution math. Educational, not medical advice.
- [Glutathione injection dosage](https://www.peptaralabs.io/glutathione-injection-dosage): dosing protocols reported in published research, why clinic drips differ from research vials, and mg to mg/mL to U-100 unit math. Educational, not medical advice.
- [PT-141 dosage (bremelanotide)](https://www.peptaralabs.io/pt-141-dosage): the single fixed 1.75 mg figure reported by the RECONNECT phase 3 trials and the approved Vyleesi label. Educational, not medical advice.

## Comparisons

- [Retatrutide vs Tirzepatide](https://www.peptaralabs.io/vs/retatrutide-vs-tirzepatide)
- [BPC-157 vs TB-500](https://www.peptaralabs.io/vs/bpc157-vs-tb500)
- [Retatrutide vs Ozempic](https://www.peptaralabs.io/vs/retatrutide-vs-ozempic)
- [Tirzepatide vs Ozempic](https://www.peptaralabs.io/vs/tirzepatide-vs-ozempic)
- [Semaglutide vs Tirzepatide](https://www.peptaralabs.io/vs/semaglutide-vs-tirzepatide)
- [MT1 vs MT2](https://www.peptaralabs.io/mt1-vs-mt2): melanotan 1 and melanotan 2 compared by receptor, approval status, and reported effects. Not a safety ranking.

## Topic hubs

- [Peptides for Fat Loss](https://www.peptaralabs.io/peptides-for-fat-loss)
- [Peptides for Recovery](https://www.peptaralabs.io/peptides-for-recovery)
- [Peptides for Muscle Growth](https://www.peptaralabs.io/peptides-for-muscle-growth)

## Safety and terminology

- [Peptide side effects reference](https://www.peptaralabs.io/peptide-side-effects)
- [Peptide glossary](https://www.peptaralabs.io/peptide-glossary): 120+ terms
- [Are peptides legal](https://www.peptaralabs.io/are-peptides-legal): research-use status in the US and other countries, FDA standing, regional rules, and competitive sport bans (WADA). General information, not legal advice.
- [FAQ](https://www.peptaralabs.io/faq)

## Catalog summary

16-SKU research catalog, by mechanism class. Assay and certificate status for each batch is published at https://www.peptaralabs.io/coa.
- Incretin receptor agonists: Retatrutide (20mg, GLP-1 / GIP / glucagon triple agonist), Tirzepatide (20mg, GIP / GLP-1 dual agonist, discontinued and not restocked)
- Tissue-repair peptides: BPC-157 (20mg, pentadecapeptide), TB-500 (10mg, thymosin beta-4 fragment), KLOW Combo (80mg, BPC-157 + TB-500 + GHK-Cu + KPV in one vial)
- Growth-hormone secretagogues: CJC-1295 with Ipamorelin (10mg, GHRH analog plus selective secretagogue), Tesamorelin (20mg, GHRH analog)
- Copper peptide: GHK-Cu (100mg, copper tripeptide)
- Melanocortin receptor agonists: PT-141 / Bremelanotide (10mg), MT-2 / Melanotan-2 (10mg)
- Neuropeptides: Semax (10mg, ACTH(4-10) analog), Selank (10mg, tuftsin analog)
- Mitochondrial peptide: MOTS-c (40mg)
- Nuclear receptor agonist: SLU-PP-332 (5mg, ERR agonist)
- Pineal tetrapeptide: Epithalon (10mg)
- Antioxidant tripeptide: Glutathione (600mg)

All research-grade, lab-tested, shipped cold-handled, and sold for laboratory research use only.

## Contact

- US line: +1 307 204 5902
- [WhatsApp: +1 916 996 9435](https://wa.me/message/QCOMZN5FJ32VD1): certificates, storage, shipping and ordering

## Bot policy

Welcomed crawlers: GPTBot, ChatGPT-User, OAI-SearchBot, ClaudeBot, Claude-Web, anthropic-ai, PerplexityBot, Perplexity-User, Grok, xAI-Grok, Google-Extended, Googlebot, Bingbot, CCBot, FacebookExternalHit, Applebot-Extended, MistralAI-User, You-Bot.

Citations of Peptara Labs entity, product pages, or COA references encouraged with link attribution to peptaralabs.io.