Top 15 Questions About Research Peptides Sciences Answered (FAQ)
If you’re new to research peptides Sciences, you likely have questions about quality, sourcing, payment, legitimacy, storage, and experimental use. The research peptide market has grown rapidly, and with it, confusion about best practices and quality standards.
This FAQ answers the top 15 questions asked by researchers about Peptide Sciences™ and our products. Each answer is evidence-based and designed to help you make informed decisions for your laboratory research.
For additional perspectives, researchers sometimes consult other suppliers like Paramount Peptides or commercial information sites like NovoWegovy . However, as emphasized in our guide on where to buy research peptides , always verify quality standards regardless of supplier.
General Questions About Peptide Sciences™
Q1: What is Peptide Sciences?
A: Peptide Sciences™ is a specialized peptide synthesis company manufacturing high-purity peptides, proteins, and amino acid derivatives for scientific research and development.
Key facts about Peptide Sciences™:
| Attribute | Detail |
|---|---|
| Business type | Peptide synthesis and supply for R&D |
| Years in operation | 10+ years |
| Product types | Peptides, proteins, amino acid derivatives |
| Purity standards | 98-99.5% (HPLC-MS verified) |
| Quality control | In-house HPLC-MS testing, batch-specific COAs |
| Customer base | Universities, biotech, pharma, CROs |
| Shipping | Worldwide to 40+ countries |
What Peptide Sciences™ is NOT:
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❌ Not a compounding pharmacy
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❌ Not a clinic or medical practice
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❌ Not a supplement company
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❌ Not a source for human-use products
All products are strictly for laboratory research use only.
Q2: Is Peptide Sciences legit?
A: Yes. Peptide Sciences™ is a legitimate, established research supply company with a verifiable track record.
Evidence of legitimacy:
| Verification Method | Result |
|---|---|
| Years in business | 10+ years |
| Better Business Bureau (BBB) | Accredited, A+ rating |
| Physical business address | Published and verifiable |
| Customer service response | <24 hours for all inquiries |
| Published COAs | Available for every product (batch-specific) |
| Institutional customers | Dozens of universities and pharma companies |
| Published research citations | 100+ peer-reviewed papers using our products |
| Third-party reviews | Trustpilot 4.8/5 (1,200+ reviews) |
| Payment options | Credit card, crypto, wire, institutional PO |
| Registered vendor | SciQuest, Coupa, Ariba, multiple university systems |
How to verify for yourself:
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Visit our Certificates of Analysis page and download a COA for any product
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Search Google Scholar for “Peptide Sciences” to see published research citations
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Check independent review platforms (Trustpilot, Google Reviews)
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Contact our customer service with questions before ordering
If you’ve searched “is Peptide Sciences legit,” the evidence above confirms our legitimacy. We encourage researchers to verify independently using the 5-point checklist in our where to buy research peptides guide .
Q3: Is Peptide Sciences a compounding pharmacy?
A: No. Peptide Sciences™ is not a compounding pharmacy and never has been.
| Aspect | Peptide Sciences™ | Compounding Pharmacy |
|---|---|---|
| Purpose | Research reagent supply | Custom medication preparation |
| Customers | Laboratories, universities, pharma R&D | Patients (with prescriptions) |
| Regulatory oversight | Research use only (RUO) | FDA, state pharmacy boards |
| Product format | Lyophilized powder, bulk | Sterile solutions, capsules, etc. |
| Human use | Prohibited (research only) | Permitted (with prescription) |
What this means for researchers:
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We do not prepare customized medications
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We do not require prescriptions
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We do not provide medical advice
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Our products are labeled “For laboratory research use only”
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We do not sell to individuals for human consumption
If you need compounded medications, please consult a licensed compounding pharmacy.
Q4: Does Peptide Sciences sell bacteriostatic water?
A: No. Peptide Sciences™ specializes exclusively in peptides, proteins, and amino acid derivatives. Bacteriostatic water is not part of our catalog.
Where to source bacteriostatic water:
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Licensed medical supply companies
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Laboratory supply vendors (VWR, Fisher Scientific, Thomas Scientific)
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Some veterinary supply companies
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Institutional pharmacy (for researchers with appropriate approvals)
Why we don’t sell it:
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Our focus is on peptide synthesis and quality control
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Bacteriostatic water is widely available from general laboratory suppliers
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We prefer to concentrate on our core competency: high-purity peptides
Reconstitution note: For researchers using our peptides, sterile saline (0.9% NaCl) or sterile water can be used for reconstitution if used immediately. Bacteriostatic water (containing 0.9% benzyl alcohol) is recommended if the reconstituted solution will be stored and used over multiple days.
Q5: What is peptide sciences purity standard?
A: Peptide Sciences™ maintains rigorous purity standards verified by in-house HPLC-MS testing.
Purity benchmarks by peptide type:
| Peptide | Minimum Purity | Peptide Sciences™ Standard |
|---|---|---|
| BPC-157 | 98% | ≥99% |
| Semaglutide | 98% | ≥99% |
| Tirzepatide | 97% | ≥98.5% |
| Retatrutide | 97% | ≥98% |
| Tesamorelin | 97% | ≥98% |
| Most other peptides | 95-98% | 98-99.5% |
What our COAs include:
| Component | What It Verifies |
|---|---|
| HPLC chromatogram | Purity percentage (area under curve) |
| Mass spectrometry | Correct molecular weight (±0.5 Da) |
| Net peptide content | Actual peptide weight vs vial total |
| Impurity profile | Truncated sequences, deletions, oxidations |
| Residual solvents | Acetonitrile, TFA, DCM levels |
| Endotoxin level | <1 EU/mg for cell culture grades |
| Batch number | Unique identifier for traceability |
For more detail, see our peptide quality verification guide .
Product-Specific Questions
Q6: Does Peptide Sciences sell BPC-157?
A: Yes. Peptide Sciences BPC-157 is one of our most popular research peptides.
BPC-157 specifications:
| Specification | Detail |
|---|---|
| Purity (HPLC-MS) | ≥99% |
| Net peptide content | 85-92% |
| Sequence length | 15 amino acids |
| Molecular weight | 1,419.5 Da |
| Available sizes | 5mg, 10mg, 25mg, 50mg, 100mg |
| Format | Lyophilized powder |
| COA | Batch-specific with HPLC trace and mass spec |
| Endotoxin | <0.5 EU/mg |
Research applications: Tendon healing, IBD models, neuroprotection, wound healing, angiogenesis.
For comprehensive information, read our BPC-157 research guide .
Q7: Does Peptide Sciences sell tirzepatide?
A: Yes. Peptide Sciences tirzepatide is available for metabolic research.
Tirzepatide specifications:
| Specification | Detail |
|---|---|
| Purity (HPLC-MS) | ≥98.5% |
| Net peptide content | ≥85% |
| Receptor targets | GLP-1 + GIP (dual agonist) |
| Amino acid length | 39 |
| Molecular weight | 4,813.4 Da |
| Available sizes | 5mg, 10mg, 25mg |
| Format | Lyophilized powder |
| Half-life (animal models) | ~5 days |
Research applications: Dual pathway mapping, metabolic syndrome models, beta-cell function, adipose tissue research.
For comparison with other GLP-1 family peptides, see our Tirzepatide vs Semaglutide vs Retatrutide comparison guide .
Q8: Does Peptide Sciences sell retatrutide?
A: Yes. Peptide Sciences retatrutide (LY3437943) is a next-generation triple agonist.
Retatrutide specifications:
| Specification | Detail |
|---|---|
| Purity (HPLC-MS) | ≥98% |
| Net peptide content | ≥85% |
| Receptor targets | GLP-1 + GIP + glucagon (triple agonist) |
| Amino acid length | ~40 |
| Molecular weight | ~4,900 Da |
| Available sizes | 5mg, 10mg, 25mg |
| Format | Lyophilized powder |
| Half-life (animal models) | ~6 days |
Research applications: Triple-receptor signaling mapping, energy homeostasis, comparative metabolic studies, thermogenesis research.
Note: Retatrutide is a newer research peptide with limited published literature, representing a significant discovery opportunity.
Q9: Does Peptide Sciences sell semaglutide?
A: Yes. Peptide Sciences semaglutide is available for selective GLP-1 research.
Semaglutide specifications:
| Specification | Detail |
|---|---|
| Purity (HPLC-MS) | ≥99% |
| Net peptide content | ≥85% |
| Receptor targets | GLP-1 only (selective) |
| Amino acid length | 31 |
| Molecular weight | 4,113.6 Da |
| Available sizes | 5mg, 10mg, 25mg |
| Format | Lyophilized powder |
| Half-life (animal models) | ~7 days |
Research applications: Isolated GLP-1 pathway studies, appetite regulation, gastric emptying, beta-cell function.
Q10: Does Peptide Sciences sell tesamorelin?
A: Yes. Tesamorelin peptide sciences is available for growth hormone research.
Tesamorelin specifications:
| Specification | Detail |
|---|---|
| Purity (HPLC-MS) | ≥98% |
| Net peptide content | ≥85% |
| Type | GHRH analog (growth hormone-releasing hormone) |
| Amino acid length | 44 |
| Mechanism | Stimulates endogenous GH secretion |
| Available sizes | 5mg, 10mg, 25mg |
| Format | Lyophilized powder |
| Bioactivity | Confirmed GHRH activity |
Research applications: Growth hormone axis modulation, body composition studies, neuroendocrine aging models.
Payment & Shipping Questions
Q11: What payment methods do you accept?
A: Peptide Sciences™ accepts multiple secure payment options to accommodate different research settings.
| Payment Method | Accepted | Processing Time | Best For |
|---|---|---|---|
| Credit Card (Visa, Mastercard, Amex, Discover) | ✅ Yes | Instant | Small orders, individual researchers |
| Cryptocurrency (Bitcoin, Ethereum, USDC) | ✅ Yes | 10-60 minutes | Privacy-conscious buyers |
| Bank Wire (Domestic) | ✅ Yes | 1-2 business days | Large orders, institutions |
| Bank Wire (International) | ✅ Yes | 2-5 business days | International institutions |
| Institutional Purchase Order (PO) | ✅ Yes | Varies (net 30) | Universities, biotech companies |
Security features:
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PCI-compliant payment processing
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256-bit SSL encryption
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Tokenized card storage (no raw data on servers)
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3D Secure authentication
What we do NOT accept:
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❌ CashApp
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❌ Venmo
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❌ Zelle (for large orders)
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❌ Gift cards
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❌ PayPal (for peptide products)
Q12: How fast is delivery?
A: Peptide Sciences™ offers fast, reliable shipping to researchers worldwide.
| Shipping Parameter | Peptide Sciences™ Standard |
|---|---|
| Order cutoff | Same-day shipping before 2 PM EST |
| Order processing | Within 24 hours (usually same day) |
| Domestic delivery (US) | 2-4 business days |
| International delivery | 5-10 business days |
| Tracking | Real-time tracking number provided |
| Packaging | Discreet, temperature-controlled |
| Insurance | Included on orders over $500 |
Shipping destinations:
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United States (all 50 states, with restrictions on some compounds in certain states)
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Canada
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United Kingdom
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European Union (all member states)
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Australia
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Japan
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South Korea
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Singapore
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Switzerland
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40+ additional countries
Customs disclaimer: Researchers are responsible for knowing local import regulations. Peptide Sciences™ provides proper documentation but cannot guarantee clearance in every jurisdiction.
Q13: Do you ship internationally?
A: Yes. Peptide Sciences™ ships to over 40 countries worldwide.
International shipping details:
| Region | Typical Delivery Time | Tracking | Customs Documentation |
|---|---|---|---|
| Canada | 5-7 business days | Yes | CN22/CN23 with research use declaration |
| United Kingdom | 5-8 business days | Yes | Commercial invoice with HS code |
| European Union | 5-10 business days | Yes | IOSS (for eligible orders) |
| Australia | 7-10 business days | Yes | Commercial invoice |
| Asia | 7-10 business days | Yes | Commercial invoice |
Important notes for international researchers:
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Import duties/taxes are the responsibility of the researcher
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Some countries restrict certain peptides – check local laws before ordering
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We properly label all shipments “For Laboratory Research Use Only”
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We provide all necessary customs documentation
Countries we cannot ship to (currently):
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Due to changing regulations, please contact customer service for current restrictions.
Quality & Trust Questions
Q14: How do I verify peptide quality before purchasing?
A: Use this 5-point verification checklist before ordering from any supplier.
Checklist:
| # | Verification Point | What to Look For |
|---|---|---|
| 1 | Published COAs | Batch-specific, includes HPLC trace and mass spec |
| 2 | Net peptide content | Reported separately from HPLC purity |
| 3 | Testing method | HPLC-MS (not UV-only) |
| 4 | Impurity profile | Includes truncated sequences, deletions, oxidations |
| 5 | Third-party confirmation | Available upon request |
Red flags to avoid:
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❌ No COA available
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❌ Generic “representative” COA (not batch-specific)
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❌ COA without HPLC trace
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❌ COA without mass spectrometry
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❌ COA more than 2 years old
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❌ No net peptide content reported
Peptide Sciences™ meets all five checklist items. Download a COA from any product page to verify.
For a detailed explanation, read our how to verify peptide quality guide .
Q15: How should I store research peptides?
A: Proper storage is critical for maintaining peptide integrity and activity.
Storage guidelines by condition:
| Condition | Lyophilized (powder) | Reconstituted (solution) |
|---|---|---|
| Room temperature (20-25°C) | 30 days (desiccated) | Not recommended (use within hours) |
| Refrigerated (4°C / 39°F) | 12 months | 7 days |
| Frozen (-20°C / -4°F) | 24 months | 30 days (single-use aliquots) |
| Ultra-low (-80°C / -112°F) | 60 months | 12 months (aliquoted) |
Critical storage rules:
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Avoid freeze-thaw cycles – Each cycle degrades 5-10% of the peptide
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Aliquot before freezing – Divide reconstituted peptide into single-use vials
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Protect from light – Store in opaque or amber vials when possible
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Keep desiccated – Moisture degrades lyophilized peptides
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Allow to warm before opening – Prevents condensation inside vial
Reconstitution tips:
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Use sterile bacteriostatic water or sterile saline
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Aim diluent at the glass wall, not directly at powder
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Gently swirl – do not shake vigorously
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Use within 7 days if stored at 4°C
Signs of peptide degradation:
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Cloudy solution (after reconstitution)
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Particulate matter
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Loss of bioactivity in assays
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Change in color (rare, but possible)
Additional Frequently Asked Questions
Bonus Q16: Can I use Peptide Sciences products for human consumption?
A: ABSOLUTELY NOT. All Peptide Sciences™ products are for laboratory research use only.
| Statement | Clarity |
|---|---|
| Intended use | In-vitro and preclinical research |
| Human consumption | Strictly prohibited |
| Animal use | Not for veterinary or therapeutic use |
| Diagnostic use | Not approved |
| Therapeutic use | Not approved |
Why this matters:
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Our products are not manufactured under GMP for human use
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They have not been tested for safety, sterility, or efficacy in humans
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They may contain residual solvents or impurities not acceptable for human use
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Using research peptides for human consumption is potentially dangerous and illegal
All product labels, COAs, and website content clearly state: “For laboratory research use only. Not for human consumption.”
Q17: Do you offer bulk or institutional pricing?
A: Yes. Peptide Sciences™ offers bulk and institutional pricing for qualified researchers.
Bulk ordering details:
| Order Size | Typical Discount | Best For |
|---|---|---|
| 25-50mg | 5-10% | Small research teams |
| 50-100mg | 10-15% | Multiple experiments |
| 100-500mg | 15-25% | Large studies |
| >500mg | Contact for quote | Industrial research |
Institutional purchasing:
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Purchase orders accepted (net 30 terms available)
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Registered vendor in SciQuest, Coupa, Ariba
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W-9 available upon request
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Tax-exempt processing
To request a quote:
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Contact [email protected]
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Provide peptide name, quantity, and purity requirements
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Include institutional affiliation (for PO processing)
Q18: Can I stack or combine different peptides in my research?
A: Possibly, depending on your research question and model.
Common research peptide combinations:
| Combination | Research Application | Notes |
|---|---|---|
| BPC-157 + TB-500 | Tissue repair, wound healing | Synergistic effects reported |
| BPC-157 + GHK-Cu | Skin regeneration, anti-inflammatory | Copper-dependent effects |
| Tirzepatide + BPC-157 | Metabolic + tissue repair | Check for unexpected interactions |
| Semaglutide + Tesamorelin | Metabolic + GH axis | Distinct pathways, low interaction risk |
Important considerations:
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Always test combinations in pilot studies first
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Check for physical compatibility (precipitation, aggregation)
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Verify stability of combined solutions
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Use appropriate control groups for each peptide alone
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Consult published literature for precedents
What we do NOT recommend:
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Combining without published precedent
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Combining in the same vial without testing
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Extrapolating human combination protocols to research settings
Summary Table: Quick Reference
| Question | Short Answer |
|---|---|
| What is Peptide Sciences? | A peptide synthesis company for R&D |
| Is Peptide Sciences legit? | Yes – 10+ years, COAs, institutions, publications |
| Is it a compounding pharmacy? | No – research supply only |
| Do you sell bacteriostatic water? | No – only peptides and derivatives |
| What is your purity standard? | 98-99.5% with HPLC-MS verification |
| Do you sell BPC-157? | Yes – ≥99% purity |
| Do you sell tirzepatide? | Yes – ≥98.5% purity |
| Do you sell retatrutide? | Yes – ≥98% purity |
| Do you sell semaglutide? | Yes – ≥99% purity |
| Do you sell tesamorelin? | Yes – ≥98% purity |
| Payment methods? | Card, crypto, wire, institutional PO |
| Delivery time? | Domestic 2-4 days, international 5-10 days |
| International shipping? | Yes – over 40 countries |
| How to verify quality? | COAs, HPLC-MS, net peptide content |
| How to store peptides? | -20°C lyophilized, 4°C reconstituted (7 days) |
Still Have Questions?
Our research support team is available to answer additional questions:
📧 Email: [email protected]
💬 Live chat: Available weekdays 9 AM – 6 PM EST
📞 Phone: Research inquiries only – contact via email for number
Before contacting us, please review:
Conclusion
We hope this FAQ has answered your questions about Peptide Sciences™ and research peptides in general.
Key takeaways:
✅ Peptide Sciences™ is a legitimate research peptide company with 10+ years of experience
✅ We are NOT a compounding pharmacy – research use only
✅ All products include batch-specific COAs with HPLC-MS verification
✅ Purity standards range from 98-99.5% depending on the peptide
✅ We accept card, crypto, wire, and institutional POs
✅ Fast shipping worldwide (2-4 days domestic, 5-10 days international)
✅ We do NOT sell bacteriostatic water – source from laboratory suppliers
✅ Products are for laboratory research only – not for human consumption
For researchers exploring alternative suppliers, Paramount Peptides offers similar research compounds. Commercial information on GLP-1-based therapies can be found at NovoWegovy .
Always verify quality using our 5-point checklist before purchasing from any supplier.
