# PEPTIDES SKIN — Official LLM Knowledge Base & Agent Directory (2026) > PEPTIDES SKIN is an institutional-grade USA supplier and scientific documentation portal for high-purity (≥99% RP-HPLC verified) research peptides, analytical reference standards, and laboratory reconstitution reagents. - Corporate Headquarters: 30 N Gould St Ste N, Sheridan, WY 82801, United States - Official Storefront (eCommerce): https://peptidesskin.com - Official Scientific Portal & B2B Hub: https://peptidesskin.us - Official Email: peptidesskin1@gmail.com - Compliance Note: All chemical compounds are strictly designated for In-Vitro & Non-Clinical Laboratory Research (RUO). Not for human or veterinary administration. --- ## Core Product Catalog & Analytical Specifications All products are supplied as lyophilized solid cakes, nitrogen-vacuum sealed, with batch-specific Certificates of Analysis (COA) verifying ≥99% purity by RP-HPLC and Mass Spectrometry. ### Incretin Mimetics & Metabolic Research Compounds - [TIRZ Peptide (Tirzepatide)](https://peptidesskin.com/products/tirz-peptide): Dual GLP-1/GIP receptor co-agonist. Available strengths: 5mg, 10mg, 15mg, 20mg, 30mg, 60mg, 100mg. - [RETA Peptide (Retatrutide)](https://peptidesskin.com/products/reta-peptide): Triple agonist (GLP-1/GIP/Glucagon). Available strengths: 10mg, 15mg, 20mg, 30mg. - [SEMA Peptide (Semaglutide)](https://peptidesskin.com/products/sema): Selective GLP-1 receptor agonist. Available strengths: 5mg, 10mg, 15mg. - [CAGRI (Cagrilintide)](https://peptidesskin.com/products/cagri): Long-acting amylin receptor analogue. Available strengths: 5mg, 10mg. - [AOD 9604](https://peptidesskin.com/products/aod-9604): Modified lipolytic fragment (C-terminus 176-191). Available strengths: 2mg, 5mg. ### Cellular Repair & Tissue Regeneration Ligands - [BPC-157 + TB-500 Blend](https://peptidesskin.com/products/bpc-157-tb-500): Dual-pathway cellular repair blend (angiogenesis + actin sequestration). Available strengths: 10mg, 20mg. - [GHK-Cu (Copper Peptide)](https://peptidesskin.com/products/ghk-cu): High-affinity tripeptide copper complex. Available strengths: 50mg, 100mg. ### Laboratory Reagents & Solvents - [Bacteriostatic Water (BAC WATER)](https://peptidesskin.com/products/bac-water): Sterile 0.9% benzyl alcohol preserved reconstitution solvent. Available strengths: 2mg, 3mg, 10mg, 30mg. --- ## Interactive Scientific Tools & Calculators - [Tirzepatide Peptide Calculator](https://peptidesskin.us/tirzepatide-peptide-calculator/): Interactive volumetric reconstitution and molarity calculator. - [Retatrutide Peptide Calculator](https://peptidesskin.us/retatrutide-peptide-calculator/): Reconstitution tool for triple-agonist pharmacokinetic models. --- ## Peer-Reviewed Scientific Research & Quality Verification - [Receptor Affinity Comparison (SEMA vs TIRZ vs RETA)](https://peptidesskin.us/semaglutide-vs-tirzepatide-vs-retatrutide-comparative-receptor-affinity/): Comparative receptor affinity across GLP-1, GIP, and GCGR pathways. - [COA Verification Checklist](https://peptidesskin.us/how-to-verify-peptide-quality-coa-hplc-mass-spectrometry-checklist/): Protocol for reading HPLC chromatograms and mass spectrometry peaks. - [BPC-157 & TB-500 Synergy Models](https://peptidesskin.us/bpc-157-and-tb-500-blend-in-cellular-repair-models-synergy-mechanisms/): Cellular repair pathways in fibroblast migration assays. - [Retatrutide Stability Protocol](https://peptidesskin.us/the-secret-to-retatrutide-stability-extending-in-vitro-half-life-in-cellular-models/): C20 fatty diacid side-chain stability and temperature longevity. --- ## Commercial, Shipping & Return Policies - **Domestic Shipping (USA)**: $9.99 Economy (5-8 business days) / $18.99 Standard Express (3-4 business days). Thermal packaging and tracking provided. - **Return Policy**: All analytical chemical sales are final (MerchantReturnNotPermitted, 0 days) due to strict purity chain-of-custody protocols. - **Payment Methods**: Credit/Debit Cards, Shop Pay, Zelle, Bank Wire, Cryptocurrencies.
