Score Breakdown
Overview
Peptide Sciences is the largest and most recognized research peptide vendor in the United States, operating since 2012. Based in Henderson, Nevada, they maintain one of the broadest catalogs in the industry with over 140 peptide products. Their website runs on the Magento e-commerce platform behind aggressive Cloudflare protection, reflecting significant web infrastructure investment.
Peptide Sciences positions itself as a premium vendor with pharmaceutical-grade quality claims. They publish Certificates of Analysis (COAs) for their products, though our analysis found these are produced by in-house testing rather than independent third-party laboratories. Their COAs consistently show high purity results (>98%) with HPLC methodology, but the lack of third-party verification is a notable gap for a vendor of this prominence.
The company has strong brand recognition and dominates search engine results for peptide-related queries. They accept credit cards, cryptocurrency, and other payment methods. Shipping is US-based with standard delivery times. Their pricing tends to be higher than smaller vendors, reflecting their premium brand positioning and large operational overhead.
Strengths
- +Largest catalog with 140+ research peptides
- +Strong brand recognition and 10+ year track record
- +Accepts multiple payment methods including credit cards
- +Consistent product availability and stock levels
- +Professional packaging and shipping
Weaknesses
- -COAs are in-house testing, not third-party verified
- -Premium pricing — higher cost per mg than many competitors
- -Aggressive website protection can make browsing difficult
- -No Finnrick independent verification data available
COA & Purity Analysis
Peptide Sciences publishes COAs for their products with HPLC purity analysis. Our automated verification found these are produced by in-house testing rather than accredited third-party laboratories. While reported purities are consistently high (>98%), independent third-party verification would significantly strengthen their transparency claims. COA score: 9.0/10 (public COAs, but in-house testing rather than third-party).
Products (146)
| Product | Price | Stock |
|---|---|---|
| NMN 500mg (60 Capsules) | $65.00 $0.13/mg 500mg capsule | In Stock |
| L-Glutathione 600mg | $85.00 $0.14/mg 600mg lyophilized | In Stock |
| GHK-Cu 1gram (Copper Peptide) (1000mg) (Topical) | $500.00 $0.50/mg 1000mg topical | In Stock |
| NAD+ | $65.00 $0.65/mg 100mg lyophilized | In Stock |
| GHK-Cu (Copper Peptide) (Topical) | $330.00 $0.66/mg 500mg topical | In Stock |
| GHK Basic 200mg (Tripeptide-1) (Topical) | $170.00 $0.85/mg 200mg topical | In Stock |
| SNAP-8 200mg (Topical) | $180.00 $0.90/mg 200mg topical | In Stock |
| AHK-Cu 200mg (Topical) | $200.00 $1.00/mg 200mg topical | In Stock |
| AHK (Tripeptide-3) 200mg (Topical) | $200.00 $1.00/mg 200mg topical | In Stock |
| GHK-Cu (Copper Peptide) (Topical) | $200.00 $1.00/mg 200mg topical | In Stock |
| Matrixyl 200mg (Topical) | $200.00 $1.00/mg 200mg topical | In Stock |
| Pal-AHK 200mg (Topical) | $200.00 $1.00/mg 200mg topical | In Stock |
| Rigin 200mg (Palmitoyl Tetrapeptide-7) (Topical) | $200.00 $1.00/mg 200mg topical | In Stock |
| Tripeptide-29 200mg (Collagen peptide) (Topical) | $200.00 $1.00/mg 200mg topical | In Stock |
| Pal-GHK 200mg (Palmitoyl Tripeptide-1) (Topical) | $210.00 $1.05/mg 200mg topical | In Stock |
| Palmitoyl Dipeptide-6 200mg (Topical) | $210.00 $1.05/mg 200mg topical | In Stock |
| Acetyl Hexapeptide-3 (Argireline) 200mg (Topical) | $220.00 $1.10/mg 200mg topical | In Stock |
| GHK Basic 50mg | $55.00 $1.10/mg 50mg lyophilized | In Stock |
| Vialox (Pentapeptide-3V) 200mg (Topical) | $220.00 $1.10/mg 200mg topical | In Stock |
| Melanostatin DM 200mg (Topical) | $230.00 $1.15/mg 200mg topical | In Stock |
| Nonapeptide-1 200mg (Topical) | $230.00 $1.15/mg 200mg topical | In Stock |
| Pentapeptide-18 (Leuphasyl) 200mg (Topical) | $230.00 $1.15/mg 200mg topical | In Stock |
| Syn-AKE 200mg (Topical) | $230.00 $1.15/mg 200mg topical | In Stock |
| Syn-Coll (Palmitoyl Tripeptide-5) 200mg (Topical) | $230.00 $1.15/mg 200mg topical | In Stock |
| Decapeptide-12 200mg (Topical) | $240.00 $1.20/mg 200mg topical | In Stock |
| AICAR 50mg | $65.00 $1.30/mg 50mg lyophilized | In Stock |
| GHK-Cu 50mg Copper Peptide | $70.00 $1.40/mg 50mg lyophilized | In Stock |
| N-Acetyl Semax Amidate 30mg | $75.00 $2.50/mg 30mg lyophilized | In Stock |
| Semax 30mg | $75.00 $2.50/mg 30mg lyophilized | In Stock |
| O-304 (100mg x 30 Capsules) | $265.00 $2.65/mg 100mg capsule | In Stock |
| Cardiogen 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Chonluten 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Cortagen 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Livagen 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Ovagen 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Pancragen 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Prostamax 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Testagen 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Vesilute 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Vesugen 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Vilon 20mg (Bioregulator) | $65.00 $3.25/mg 20mg lyophilized | In Stock |
| Bronchogen 20mg (Bioregulator) | $70.00 $3.50/mg 20mg lyophilized | In Stock |
| Pinealon 20mg (Bioregulator) | $75.00 $3.75/mg 20mg lyophilized | In Stock |
| Thymagen (Thymogen) 20mg | $80.00 $4.00/mg 20mg lyophilized | In Stock |
| TRH Thyrotropin (Protirelin) | $200.00 $4.00/mg 50mg lyophilized | In Stock |
| Epithalon (Epitalon) | $215.00 $4.30/mg 50mg lyophilized | In Stock |
| Epithalon (Epitalon) | $95.00 $4.75/mg 20mg lyophilized | In Stock |
| TRH Thyrotropin (Protirelin) | $95.00 $4.75/mg 20mg lyophilized | In Stock |
| BPC-157, TB-500, KPV, GHK-Cu 80mg (Klow Blend) | $395.00 $4.94/mg 80mg lyophilized | In Stock |
| GHRP-2 | $50.00 $5.00/mg 10mg lyophilized | In Stock |
| GHRP-6 | $50.00 $5.00/mg 10mg lyophilized | In Stock |
| Melanotan 2 (MT2) 10mg | $50.00 $5.00/mg 10mg lyophilized | In Stock |
| N-Acetyl Epithalon Amidate 20mg | $100.00 $5.00/mg 20mg lyophilized | In Stock |
| 5-Amino-1MQ 50mg (60 Capsules) | $255.00 $5.10/mg 50mg capsule | In Stock |
| BPC-157, TB-500, GHK-Cu (Glow Blend) | $315.00 $5.25/mg 60mg lyophilized | In Stock |
| BPC-157, TB-500, GHK-Cu (Glow Blend) | $165.00 $5.50/mg 30mg lyophilized | In Stock |
| Melanotan 1 (MT1) 10mg | $55.00 $5.50/mg 10mg lyophilized | In Stock |
| PT-141 10mg | $55.00 $5.50/mg 10mg lyophilized | In Stock |
| Selank 10mg | $55.00 $5.50/mg 10mg lyophilized | In Stock |
| ARA-290 16mg | $95.00 $5.94/mg 16mg lyophilized | In Stock |
| Thymalin 20mg | $120.00 $6.00/mg 20mg lyophilized | In Stock |
| Oxytocin 10mg (6000 IU) | $65.00 $6.50/mg 10mg lyophilized | In Stock |
| N-Acetyl Selank Amidate 10mg | $70.00 $7.00/mg 10mg lyophilized | In Stock |
| GHRP-2 | $36.00 $7.20/mg 5mg lyophilized | In Stock |
| GHRP-2 5mg | $36.00 $7.20/mg 5mg lyophilized | In Stock |
| GHRP-6 | $36.00 $7.20/mg 5mg lyophilized | In Stock |
| PE-22-28 8mg | $60.00 $7.50/mg 8mg lyophilized | In Stock |
| Ipamorelin | $80.00 $8.00/mg 10mg lyophilized | In Stock |
| Sermorelin | $125.00 $8.33/mg 15mg lyophilized | In Stock |
| Gonadorelin 10mg | $85.00 $8.50/mg 10mg lyophilized | In Stock |
| Adipotide (FTPP) 10mg | $89.00 $8.90/mg 10mg lyophilized | In Stock |
| Hexarelin | $45.00 $9.00/mg 5mg lyophilized | In Stock |
| Ipamorelin | $46.00 $9.20/mg 5mg lyophilized | In Stock |
| CJC-1295 (no DAC), GHRP-2 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| CJC-1295 (no DAC), GHRP-6 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| CJC-1295 (no DAC), Hexarelin 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| CJC-1295 (no DAC), Ipamorelin 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| FGL-S 10mg | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| Mod GRF, GHRP-2 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| Mod GRF, GHRP-6 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| Mod GRF, Hexarelin 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| Mod GRF, Ipamorelin 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| Sermorelin, Ipamorelin 10mg (Blend) | $95.00 $9.50/mg 10mg lyophilized | In Stock |
| CJC-1295 no DAC (Mod GRF 1-29) | $49.50 $9.90/mg 5mg lyophilized | In Stock |
| BPC-157, TB-500 (Blend) | $200.00 $10.00/mg 20mg lyophilized | In Stock |
| DSIP 5mg | $50.00 $10.00/mg 5mg lyophilized | In Stock |
| TB-500 Fragment (17-23) 10mg | $100.00 $10.00/mg 10mg lyophilized | In Stock |
| Tesamorelin, CJC-1295 (no DAC), Ipamorelin 12mg (Blend) | $125.00 $10.42/mg 12mg lyophilized | In Stock |
| Sermorelin, GHRP-6, GHRP-2 9mg (Blend) | $95.00 $10.56/mg 9mg lyophilized | In Stock |
| AOD9604 6mg | $65.00 $10.83/mg 6mg lyophilized | In Stock |
| KPV (Ac-KPV-NH2) 5mg | $55.00 $11.00/mg 5mg lyophilized | In Stock |
| Methylene Blue (10mg x 60 Capsules = 600mg) | $110.00 $11.00/mg 10mg capsule | In Stock |
| MOTS-c | $110.00 $11.00/mg 10mg lyophilized | In Stock |
| Sermorelin | $55.00 $11.00/mg 5mg lyophilized | In Stock |
| B7-33 6mg | $70.00 $11.67/mg 6mg lyophilized | In Stock |
| BPC-157 | $59.50 $11.90/mg 5mg lyophilized | In Stock |
| BPC-157, TB-500 (Blend) | $120.00 $12.00/mg 10mg lyophilized | In Stock |
| VIP 6mg | $75.00 $12.50/mg 6mg lyophilized | In Stock |
| Kisspeptin-10 5mg | $65.00 $13.00/mg 5mg lyophilized | In Stock |
| MOTS-c | $65.00 $13.00/mg 5mg lyophilized | In Stock |
| Thymosin Alpha-1 | $130.00 $13.00/mg 10mg lyophilized | In Stock |
| Tesamorelin, Ipamorelin 8mg (Blend) | $110.00 $13.75/mg 8mg lyophilized | In Stock |
| Hexarelin | $30.00 $15.00/mg 2mg lyophilized | In Stock |
| Ipamorelin | $30.00 $15.00/mg 2mg lyophilized | In Stock |
| Tesamorelin 5mg | $75.00 $15.00/mg 5mg lyophilized | In Stock |
| Humanin 10mg | $155.00 $15.50/mg 10mg lyophilized | In Stock |
| TB-500 (Thymosin Beta-4) (43aa) | $165.00 $16.50/mg 10mg lyophilized | In Stock |
| Thymosin Alpha-1 | $50.00 $16.67/mg 3mg lyophilized | In Stock |
| TB-500 (Thymosin Beta-4) (43aa) | $85.00 $17.00/mg 5mg lyophilized | In Stock |
| CJC-1295 no DAC (Mod GRF 1-29) | $35.00 $17.50/mg 2mg lyophilized | In Stock |
| Sermorelin | $35.00 $17.50/mg 2mg lyophilized | In Stock |
| GHRH 5mg | $95.00 $19.00/mg 5mg lyophilized | In Stock |
| LL-37 5mg (CAP-18) | $95.00 $19.00/mg 5mg lyophilized | In Stock |
| PEG MGF 5mg | $95.00 $19.00/mg 5mg lyophilized | In Stock |
| Triptorelin (GnRH) 2mg | $42.00 $21.00/mg 2mg lyophilized | In Stock |
| P21 (P021) 5mg | $120.00 $24.00/mg 5mg lyophilized | In Stock |
| FOX04-DRI 10mg (Proxofim) | $300.00 $30.00/mg 10mg lyophilized | In Stock |
| MGF IGF-1 Ec 5mg | $150.00 $30.00/mg 5mg lyophilized | In Stock |
| PNC-27 5mg | $150.00 $30.00/mg 5mg lyophilized | In Stock |
| Dihexa (5mg x 60 Capsules = 300mg) | $195.00 $39.00/mg 5mg capsule | In Stock |
| Melanotan 2 (MT2) (3mg x 10 Vials = 30mg) | $140.00 $46.67/mg 3mg lyophilized | In Stock |
| PT-141 (3mg x 10 Vials = 30mg) | $140.00 $46.67/mg 3mg lyophilized | In Stock |
| GHK-Cu (2mg x 60 Capsules) (Copper Tripeptide) | $165.00 $82.50/mg 2mg capsule | In Stock |
| IGF-1 LR3 1mg | $110.00 $110.00/mg 1mg lyophilized | In Stock |
| GHRP-2 (5mg x 10), Ipamorelin (5mg x 10) | $697.00 $139.40/mg 5mg lyophilized | In Stock |
| GHRP-6 (5mg x 10), Ipamorelin (5mg x 10) | $697.00 $139.40/mg 5mg lyophilized | In Stock |
| Epitalon 1mg (60 capsules) (Telomere Length) | $140.00 $140.00/mg 1mg capsule | In Stock |
| GHRP-2 (5mg x 10), CJC-1295 no DAC (5mg x 10) | $726.75 $145.35/mg 5mg lyophilized | In Stock |
| GHRP-6 (5mg x 10), CJC-1295 no DAC (5mg x 10) | $726.75 $145.35/mg 5mg lyophilized | In Stock |
| Tesamorelin 2mg (10 Vial Kit) | $300.00 $150.00/mg 2mg lyophilized | In Stock |
| Follistatin 315 1mg | $155.00 $155.00/mg 1mg lyophilized | In Stock |
| SLU-PP-332 | $160.00 $160.00/mg 1mg lyophilized | In Stock |
| Hexarelin (5mg x 10), CJC-1295 no DAC (5mg x 10) | $803.25 $160.65/mg 5mg lyophilized | In Stock |
| Ipamorelin (5mg x 10), CJC-1295 no DAC (5mg x 10) | $811.75 $162.35/mg 5mg lyophilized | In Stock |
| Follistatin 344 1mg | $175.00 $175.00/mg 1mg lyophilized | In Stock |
| IGF-1 LR3 (Receptor Grade) 1mg | $250.00 $250.00/mg 1mg lyophilized | In Stock |
| Hexarelin (2mg x 10), CJC-1295 no DAC (2mg x 10) | $552.50 $276.25/mg 2mg lyophilized | In Stock |
| Ipamorelin (2mg x 10), CJC-1295 no DAC (2mg x 10) | $552.50 $276.25/mg 2mg lyophilized | In Stock |
| Thymosin Beta-4 Fragment (1-4) (Ac-SDKP) 500mcg (60 Capsules) | $160.00 $320.00/mg 0.5mg capsule | In Stock |
| BPC 157 500mcg (60 Capsules) | $165.00 $330.00/mg 0.5mg capsule | In Stock |
| SLU-PP-332 | $110.00 $440.00/mg 0.25mg lyophilized | In Stock |
| Tesofensine 500mcg (30 Capsules) | $250.00 $500.00/mg 0.5mg capsule | In Stock |
| IGF-1 LR3 (Receptor Grade) 100mcg x 10 Vials | $300.00 $3000.00/mg 0.1mg lyophilized | In Stock |
| Gut Inflammation (60 Capsules) (Stable BPC-157 Arginate, KPV, Larazotide) | $325.00 capsule | In Stock |
| Longevity, Performance & Obesity Research (60 Capsules) | $300.00 capsule | In Stock |
| Repair and Recovery (60 Capsules) (Stable BPC-157 Arginate, Thymosin Beta-4 Fragment) | $300.00 capsule | In Stock |
Frequently Asked Questions
Is Peptide Sciences legit?
Peptide Sciences is one of the most established peptide vendors in the US, operating since 2012 with a large catalog. They publish COAs and maintain consistent product availability. However, their testing is in-house rather than third-party verified.
Does Peptide Sciences publish COAs?
Yes, Peptide Sciences publishes Certificates of Analysis showing HPLC purity results. However, our analysis found these are produced by their own in-house testing rather than independent third-party laboratories.
How does Peptide Sciences compare to other vendors on price?
Peptide Sciences tends to be priced at a premium compared to smaller vendors. Their median price per mg is above the industry average. You're paying for brand recognition and catalog breadth rather than value pricing.
What payment methods does Peptide Sciences accept?
Peptide Sciences accepts credit cards, cryptocurrency, and other standard payment methods. Credit card acceptance is a differentiator, as many peptide vendors are limited to crypto or wire transfers.
Does Peptide Sciences ship internationally?
Peptide Sciences primarily serves the US market. Check their website for current international shipping policies and restrictions.