I am considering Retatrutide. Does anyone have any more recent recommendations for sourcing and personal experience with the product? Also what kinds of doses are you using? I have been on Semaglutide so I’m already adjusted to larger doses of Semaglutide, and not needing to start with the baby doses. I am lean, non diabetic but looking to maintain good metabloic health.
PGB has RT 10 or 24mg options in stock now.
How are you able to maintain your weight with large doses? I’d love to hear any tips you might have because I’d love to take larger doses more regularly for greater potential health/brain benefits. I barely took it last year but I’m committing to be more regular going forward.
Do you simply ‘eat through it’? Or?
I take aprox 1mg and only notice slightly tamped down food noise, in a good way. I still want to eat.
If you need help with PGB, let m know.
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Thanks Beth! I do a lot of exercise and this keeps my appetite intact, but Sema does not allow it to get too high. I’m going on a cruise next week and that will probably lead to more than sufficient calories.
I’m wondering what PGB stands for?
I will look into that company.
FYI, with retatrutide, you will probably feel much less appetite surpression than with semaglutide. That bothers some people. Make sure you’re not one of those people!
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Thanks for sharing this point. I do like having some appetite suppression. I also like that Sema reduces my taste for alcohol to zero, and the sleep benefits that have resulted from becoming a tee totaler.
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Only the total weightloss matters and reta is king in that regard.
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You would think so. But Some people like to have a certain level of appetite suppression. I’ve seen many tales of people trying to switch to retatrutide from tirzepatide or semaglutide and end up dropping retatrutide.
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Given all the potential long tail risks with injectables aside from purity (sterility, endotoxins, etc), I’ve been really curious about oral agents like orforglipron. Should be coming out commercially this year, has been through all 3 phases of clinical trials, and now starting to show up in gray market sources.
With oral agents, you really only have to care about purity and that’s it. No risk setting off an endotoxin crisis or giving yourself sepsis from an especially nasty bacteria that made it into your vial.
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I don’t think the testing labs gray people can test for purity for pills anyway, just mass. Don’t forget about possible liver issues for pills, which can be a concern for oral medication.
I haven’t seen a GLP1 fail an endotoxin test so far, based on fda limits. I’ve looked at dozens of these over the past 12 months.
You should definitely filter your peptides with a 0.22um filter to take out all bacteria from your solution.
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Fwiw the orforglipron I’ve seen is capsules or powder (or powder put into a solution) so testing is pretty straightforward.
Testing for mass is straight forward but testing on this and nearly all other orals from gray market has shown very wide mass variation. It’s hard to know you’re getting an accurate dose, even within the same bottle.
Endotoxins risk depends on dose and patient weight, apparently it’s quite a limited risk given the doses most peptide users take and given their manufacturing process which does not generally produce endotoxins.
Sterility is a concern but mitigated by filtering and, again, manufacturing process. However, the level of testing required to ensure sterility is unavailable in the gray world <usp 71> given the cost. TAMC and TYMC testing are a common set of tests for a given vial but not necessarily indicators of the sterility of a batch or manufacturer process. Still, some data is better than none. That said, lack of ISR and medication measured efficacy are also good indicators of safe use related to sterility.
There are some Japanese vendors that sell Semaglutide and Rybelsus. I tried this one (https://asakusa-yakusoh.com/) and they offer delivery to California, USA, and accept Visa credit card. However, their prices are quite high even compared to US prices without insurance.
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I have been looking for a source for retatrutide, but haven’t had any success thus far. The sites I’ve found all seem like scams requiring crypto or direct wire transfers for payment. Several show an order having been placed then I’m left with being told an email with instructions for payment will be sent, but I never receive the indicated email.
What does PGB stand for?
Yes. The most with the least.
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Hi Beth, what does PGB stand for? Do you have a verified link to the their website? Thanks
I would start with Finnrick as a starting point - work your way down the list of “good” suppliers:
Thanks RapAdmin! That’s exactly what I’ve been doing. I’ve been striking out with finding websites no longer in existence, or finding a scam website masquerading as the purported vendor. The sites all want payment by bank transfer or crypto if I find one that I can place an order. I run all the sites through AI to find out if it’s actually a valid site or a scam site. It seems a lot of people here are using retatrutide, but none are willing to share their experiences with validated sources. It all seem very sketchy.
Wait - so even these guys are not just taking credit cards and processing orders? Strange. So is this information wrong:
I just did a screenshot of the Reta providers and Asked Gemini the following:
Identify each of the companies listed in this peptide supplier list provided in the attached image, and provide their company website, and the methods of payments that they offer for their peptides:
Gemini response
Based on the supplier list provided, the entities have been identified and categorized by their operational model (US-based domestic resellers vs. direct international manufacturers).
Vendor Identification & Payment Methods
| Rank | Company Identity | Website / Source | Payment Methods |
|---|---|---|---|
| 1 | Paradigm Peptides | paradigmpeptides.com | • Credit Card (VISA/Mastercard) • eCheck / ACH • Cryptocurrency (Bitcoin) |
| 2 | Orbitrex Peptides | orbitrexpeptide.is | • Credit Card • Zelle • Cryptocurrency (Note: Operates via offshore domain .is) |
| 3 | Peptide Partners | peptide.partners | • Credit Card • Zelle / Venmo • Cryptocurrency |
| 4 | Lisa Biopeptide |
Direct Representative (No E-commerce Site) |
• Alibaba Trade Assurance • Wise (TransferWise) • Cryptocurrency (USDT/BTC) • Western Union |
| 5 |
Shandong Shengyuan (Shandong Shengyuan Pharmaceutical Co) |
CPHI Profile | • T/T (Telegraphic Transfer/Wire) • L/C (Letter of Credit) (B2B Industrial Supplier) |
| 6 |
Nantong Guangyuan (Nantong Guangyuan Chemical Co., Ltd) |
Echemi Profile | • T/T (100% Advance or D/P) • Wire Transfer |
| 7 | Lipeptides |
Ambiguous Entity (Likely “Li Peptides” Rep or LifeTein) |
• If Rep: Wise, Crypto, Western Union • If LifeTein: Credit Card, PO (Purchase Order) |
| 8 | Zenith Jove Peptide (ZJ) |
Direct Representative (China-based) |
• Wise • Cryptocurrency (USDT) • Bank Wire |
| 9 | NextechLabs | nextech-labs.odoo.com | • PayPal • Bank/Wire Transfer |
| 10 | Peptronix Bio PTB |
Direct Vendor (No indexed public shop) |
• Cryptocurrency • Wise • Wire Transfer |
Operational Analysis
- Domestic Resellers (Paradigm, Orbitrex, Peptide Partners): These companies operate standard e-commerce storefronts, typically offering domestic shipping within the US or EU. They charge a premium for the convenience of “easy” payments (Credit Cards) and faster shipping/customs clearance.
- Direct Manufacturers/Reps (Lisa, Shandong, Nantong, Zenith Jove): These entries represent direct-from-China sources. “Lisa,” “Zenith Jove,” and “Peptronix” are likely individual sales representatives operating via email, WhatsApp, or platforms like Made-in-China and Alibaba. “Shandong Shengyuan” and “Nantong Guangyuan” are large-scale chemical manufacturers that typically require bulk orders (B2B) and payment via wire transfer.
- Risk Profile:
- High Assurance: Paradigm Peptides, Peptide Partners (Domestic, Credit Card protection).
- Moderate/High Risk: Direct Reps (Lisa, Zenith Jove). These transactions lack consumer protections (Chargebacks) and rely entirely on vendor reputation within the “gray market” communities.
Next Step
Would you like me to perform a cost-per-milligram analysis of Retatrutide across the three domestic vendors (Paradigm, Orbitrex, Peptide Partners) to determine the most cost-effective domestic source?
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Interesting… it doesn’t seem like Finnrick is keeping up on things, listing vendors that have been shut down.
Based on the supplier list provided, I have identified the entities, their websites, and payment methods. Following that is the cost-per-milligram analysis for the requested domestic vendors.
1. Vendor Identification & Payment Methods
| Company Name | Website / Status | Payment Methods |
|---|---|---|
| Paradigm Peptides | CLOSED (Under Investigation/Out of Business) | N/A |
| Orbitrex Peptides | orbitrexpeptide.is | • Credit Card (VISA/Mastercard) • Zelle • Cryptocurrency (Bitcoin, USDT) |
| Peptide Partners | peptide.partners | • Credit Card • Zelle / Venmo • Cryptocurrency |
| Lisa Biopeptide | Direct Representative (No public site) | • Wise (TransferWise) • Cryptocurrency • Alibaba Trade Assurance |
| Shandong Shengyuan | CPHI Profile | • T/T (Wire Transfer) • L/C (Letter of Credit) (B2B Industrial Supplier) |
| Nantong Guangyuan | Echemi Profile | • T/T (100% Advance) • Wire Transfer |
| Lipeptides | Direct Representative (Likely “Li Peptides”) | • Wise • Cryptocurrency • Western Union |
| Zenith Jove Peptide (ZJ) | Direct Representative (China-based) | • Wise • Cryptocurrency (USDT) • Bank Wire |
| NextechLabs | nextech-labs.odoo.com | • PayPal • Bank/Wire Transfer • Credit Card |
| Peptronix Bio PTB | Direct Vendor (No indexed shop) | • Cryptocurrency • Wise • Wire Transfer |
2. Cost-Per-Milligram Analysis: Retatrutide
You requested a cost comparison for the three “domestic” vendors: Paradigm Peptides, Orbitrex Peptides, and Peptide Partners.
Current Status:
- Paradigm Peptides is largely defunct. Federal investigations and BBB reports from late 2024/early 2025 indicate the business is closed. No current pricing is available.
- Peptide Partners operates on a “Kit” model (bulk vials) rather than single vials. Their specific pricing is often hidden behind membership or changes frequently, though they are known for volume discounts.
- Orbitrex Peptides has clear, public pricing for specific milligram amounts.
Cost Analysis Table:
| Vendor | Product Configuration | Price (USD) | Cost Per mg | Notes |
|---|---|---|---|---|
| Orbitrex Peptides | 36mg Vial (Single) | $219.99 | $6.11 / mg | Confirmed current price. |
| Peptide Partners | 100mg Kit (Est.) | ~$450 - $550* | ~$4.50 - $5.50 / mg | Estimate based on typical bulk kit pricing. Requires larger upfront purchase ($400+). |
| Paradigm Peptides | N/A | N/A | N/A | Vendor Closed. |
Recommendation:
- For Low Volume / Trial: Orbitrex Peptides is the only viable option among these three for a single vial purchase with transparent pricing ($6.11/mg).
- For Bulk / Long-term: Peptide Partners typically offers a lower per-mg cost (estimated ~$5/mg), but you must commit to a “Kit” (e.g., 10 vials) to unlock that rate.
Note: Prices for research peptides fluctuate rapidly. “Direct Representatives” (like Lisa or Zenith Jove listed above) typically offer prices in the $2.00 – $3.50 per mg range, but with significantly higher shipping risks, customs seizure potential, and lack of credit card protections.