Pepsynth Labs
Pepsynth Labs is a United States research-material storefront. Its domain was registered in October 2025 and uses proxy registration. The public About page does not provide verifiable company details. The site publishes a support email and phone number.
The live WooCommerce Store API listed 33 products in this review. PeptidePrices added current, comparison-ready rows only for identifiable research compounds and excluded capsules and unclear blends. The affiliate links retain a_aid=peptideprices. Code peptideprices gives customers 10% off.
Pepsynth does not publish a central public COA library. Six of 33 product pages linked a report. PeptidePrices checked 19 supplied Prime Analytical Laboratories record numbers against the issuer's portal. Eighteen matched the issuer's records. The supplied TB-500 PDF for RP214-09Mar26-2 differs from Prime's record. Prime lists TB-500 10mg and Not TB-500. The supplied PDF lists TB-500 5mg and TB-500. Pepsynth says it requested a documentation update after asking the lab to analyze the full TB-4 sequence. PeptidePrices has not received a corrected Prime-issued record or a lot mapping for current inventory. Most reports list the sample lot as Not Provided and have limited test panels. Pinealon linked an Epithalon report, and Oxytocin linked a Semax report. These limits reduce the COA score.
Pepsynth Labs is a United States research-material storefront. Its domain was registered in October 2025 and uses proxy registration. The public About page does not provide verifiable company details. The site publishes a support email and phone number.
The live WooCommerce Store API listed 33 products in this review. PeptidePrices added current, comparison-ready rows only for identifiable research compounds and excluded capsules and unclear blends. The affiliate links retain a_aid=peptideprices. Code peptideprices gives customers 10% off.
Pepsynth does not publish a central public COA library. Six of 33 product pages linked a report. PeptidePrices checked 19 supplied Prime Analytical Laboratories record numbers against the issuer's portal. Eighteen matched the issuer's records. The supplied TB-500 PDF for RP214-09Mar26-2 differs from Prime's record. Prime lists TB-500 10mg and Not TB-500. The supplied PDF lists TB-500 5mg and TB-500. Pepsynth says it requested a documentation update after asking the lab to analyze the full TB-4 sequence. PeptidePrices has not received a corrected Prime-issued record or a lot mapping for current inventory. Most reports list the sample lot as Not Provided and have limited test panels. Pinealon linked an Epithalon report, and Oxytocin linked a Semax report. These limits reduce the COA score.
Reviews from our readers
Products (31)
| Peptide | Price | Package | Stock | |
|---|---|---|---|---|
| 5-Amino-1MQ | $164.50 | 5mg | In stock | View |
| AOD-9604 | $80.00 | 10mg | In stock | View |
| AOD-9604 | $40.00 | 5mg | In stock | View |
| BPC-157 | $95.00 | 10mg | In stock | View |
| CJC-1295 (No DAC) | $60.00 | 5mg | In stock | View |
| CJC-1295 (With DAC) | $60.00 | 10mg | In stock | View |
| Epithalon (Epitalon) | $70.00 | 10mg | In stock | View |
| GHK-Cu (Copper Peptide) | $89.30 | 50mg | In stock | View |
| GLOW Protocol | $150.00 | 70mg | In stock | View |
| Ipamorelin | $58.00 | 5mg | In stock | View |
| Ipamorelin | $81.00 | 10mg | In stock | View |
| KLOW Protocol | $156.00 | 80mg | In stock | View |
| KPV | $40.00 | 5mg | In stock | View |
| MOTS-c | $89.60 | 10mg | In stock | View |
| MOTS-c | $164.00 | 20mg | In stock | View |
| MOTS-c | $280.00 | 40mg | In stock | View |
| NAD+ | $180.00 | 500mg | In stock | View |
| Oxytocin | $120.00 | 10mg | In stock | View |
| Pinealon | $55.00 | 10mg | In stock | View |
| GLP-3R | $260.00 | 20mg | In stock | View |
| Selank | $48.00 | 10mg | In stock | View |
| GLP-1S | $165.00 | 10mg | In stock | View |
| GLP-1S | $260.00 | 20mg | In stock | View |
| Semax | $30.00 | 5mg | In stock | View |
| Semax | $45.00 | 10mg | In stock | View |
| TB-500 (Thymosin Beta-4) | $75.00 | 5mg | In stock | View |
| Tesamorelin | $42.00 | 5mg | In stock | View |
| Tesamorelin | $170.00 | 20mg | In stock | View |
| GLP-2T | $208.00 | 10mg | In stock | View |
| GLP-2T | $335.00 | 20mg | In stock | View |
| Wolverine Stack | $164.99 | 20mg | In stock | View |
Frequently asked questions
- Is Pepsynth Labs legit?
- Pepsynth Labs scores 5.5/10 on PeptidePrices' evidence rubric: 40% COA practices, 20% community reputation, 20% transparency, and 20% operations. Affiliate relationships are disclosed on this page and are not a scoring factor.
- Does Pepsynth Labs have a coupon code?
- Code PEPTIDEPRICES gives customers 10% off. Use the PeptidePrices referral link on this page and confirm the discount at checkout.
- Where does Pepsynth Labs ship?
- Pepsynth Labs ships to United States. Pepsynth states that it ships to U.S. addresses only, uses USPS or FedEx, and offers free U.S. shipping over $200. Its published 30-day guarantee is limited to defective vials. Checkout showed Apple Pay and Google Pay. A fulfillment address was not independently verified.
- Does Pepsynth Labs publish COAs?
- COA ✓. Open the vendor's certificate library and match each report to the exact product, strength, and lot before ordering.
- What do customer reviews say about Pepsynth Labs?
- Trustpilot showed 4.4/5 from 12 exact-domain reviews during PeptidePrices' latest check. Customer reviews describe service and delivery; they do not verify product identity or laboratory results.