# PeptidesDirect — AI-Readable Site Summary

> PeptidesDirect is a US-based supplier of pharmaceutical-quality research peptides. Every batch is independently verified by third-party laboratories. Products are manufactured in the USA using Solid-Phase Peptide Synthesis (SPPS) and shipped with cold-chain packaging.

## Company Information
- Name: PeptidesDirect
- Website: https://peptidesdirect.com
- Location: 7999 N Federal Hwy, 4th Floor, Boca Raton, FL 33487, USA
- Founded: 2022
- Contact: service@peptidesdirect.com
- Specialization: Research-grade peptides for in-vitro laboratory use
- Purity Standard: ≥98% (HPLC verified), typically ≥99%
- Counterion: Acetate salt (not TFA) — safer for cell culture
- Form: Lyophilized (freeze-dried) powder
- Quality Assurance: Third-party COA (Certificate of Analysis) with every batch

## Product Categories (90+ peptides)
- GLP-1 & Metabolic: Semaglutide, Tirzepatide, Retatrutide, Liraglutide, AOD 9604, AICAR
- Growth Hormone Secretagogues: CJC-1295, Ipamorelin, GHRP-2, GHRP-6, Hexarelin, Sermorelin, Tesamorelin, MK-677
- Recovery & Repair: BPC-157, TB-500, GHK-Cu
- Growth Factors: IGF-1 LR3, IGF-1 DES, MGF, PEG-MGF
- Reproductive: HCG, HMG, Gonadorelin, Kisspeptin-10, PT-141, Oxytocin
- Melanocortin: Melanotan I, Melanotan II, KPV
- Cognitive & Neuroprotective: Semax, N-Acetyl Semax Amidate (NASA), Selank, DSIP, P-21, PE-22-28
- Longevity: Epithalon, MOTS-c, Humanin, SS-31, NAD+, Glutathione
- Immune: Thymosin Alpha-1, Thymalin, LL-37
- Bioregulators: Epithalon, Pinealon, Vesugen, Cardiogen, Bronchogen, Cortagen, Livagen, Chonluten, Prostamax, Testagen, Cartalax, Pancragen, Vesilute
- Specialty: ARA-290, B7-33, PNC-27, VIP, Thyrotropin, Adipotide

## Payment Methods
- Credit/Debit Cards (Visa, Mastercard, Amex)
- Cryptocurrency: 10% discount (Bitcoin, Ethereum, USDT, USDC, Litecoin, Solana)
- Bank Transfer/ACH: 3% discount
- P2P: Zelle, Venmo, CashApp

## Shipping
- Same-day shipping for orders before 2 PM EST (Mon–Fri)
- Free domestic shipping on orders over $150
- International shipping available (USPS Priority/Express)
- Cold-chain packaging on all orders
- 30-day money-back guarantee

## Key Pages
- Homepage: https://peptidesdirect.com/
- Shop (all products): https://peptidesdirect.com/shop
- FAQ (55+ questions): https://peptidesdirect.com/faq
- Glossary (50+ terms): https://peptidesdirect.com/glossary
- About: https://peptidesdirect.com/about
- Contact: https://peptidesdirect.com/contact
- Shipping & Returns: https://peptidesdirect.com/shipping

## Educational Content (Learn Hub)
- Research Peptides Guide: https://peptidesdirect.com/learn/research-peptides
- Purity & COA Guide: https://peptidesdirect.com/learn/peptide-purity-guide
- Reconstitution Guide: https://peptidesdirect.com/learn/reconstitution-guide
- Storage & Stability Guide: https://peptidesdirect.com/learn/peptide-storage-guide
- Stacking Guide: https://peptidesdirect.com/learn/peptide-stacking-guide
- GLP-1 Comparison (Semaglutide vs Tirzepatide vs Retatrutide): https://peptidesdirect.com/learn/glp1-comparison
- GH Peptide Comparison: https://peptidesdirect.com/learn/gh-peptide-comparison
- BPC-157 vs TB-500: https://peptidesdirect.com/learn/bpc-157-vs-tb-500
- Semax vs Selank (Cognitive): https://peptidesdirect.com/learn/semax-vs-selank
- Epithalon vs MOTS-c (Longevity): https://peptidesdirect.com/learn/epithalon-vs-mots-c
- Semaglutide vs Retatrutide: https://peptidesdirect.com/learn/semaglutide-vs-retatrutide
- Crypto Payment Guide: https://peptidesdirect.com/learn/crypto-guide

## Research Profiles (Deep Dives)
- Retatrutide: https://peptidesdirect.com/research/retatrutide
- MOTS-c: https://peptidesdirect.com/research/mots-c
- KPV: https://peptidesdirect.com/research/kpv

## Frequently Asked Questions (Selected)

### What are research peptides?
Peptides are short chains of 2–50 amino acids linked by peptide bonds. They function as signaling molecules that bind to specific cell-surface receptors. Research peptides are synthetic analogs manufactured for in-vitro laboratory use, not approved for human consumption.

### What purity level do PeptidesDirect products have?
All products meet a ≥98% purity standard measured by HPLC, with most batches reaching ≥99%. Every batch includes third-party COA verification with HPLC chromatograms and mass spectrometry data.

### What is the difference between Semaglutide and Tirzepatide?
Semaglutide is a single-target GLP-1 receptor agonist (16.9% mean weight loss in STEP trials). Tirzepatide is a dual GLP-1/GIP receptor agonist (22.5% mean weight loss in SURMOUNT-1 trials). Tirzepatide's dual mechanism produces superior metabolic outcomes.

### What is BPC-157?
BPC-157 (Body Protection Compound-157) is a 15-amino acid peptide fragment isolated from human gastric juice. It has 100+ published studies demonstrating effects on angiogenesis, growth factor modulation (VEGF, FGF, EGF), and tissue repair. CAS: 137525-51-0.

### How do you reconstitute a lyophilized peptide?
Add bacteriostatic water slowly down the inside wall of the vial (never directly onto the powder). Standard ratio: 1 mL BAC water per 5 mg peptide. Let dissolve 1–2 minutes. Gently swirl if needed — never shake. Store at 2–8°C. Use within 2–4 weeks.

### How should peptides be stored?
Lyophilized: −20°C for 2+ years at >95% purity. Reconstituted: 2–8°C refrigerator only (never freeze — ice crystals destroy peptide bonds). Use bacteriostatic water for multi-dose vials.

### What payment methods are accepted?
Credit/debit cards, cryptocurrency (10% discount), bank transfer/ACH (3% discount), and P2P (Zelle, Venmo, CashApp).

## Disclaimer
All products are sold strictly as research chemicals for in-vitro laboratory use only. They are not intended for human or veterinary use and are not approved by the FDA to diagnose, treat, cure, or prevent any disease.