Since 2016, we have meticulously ensured over 10,000 researchers have access to the safest, most effective compounds for the advancement of the medical research. Simon’s stands alone in the peptide industry by conducting blinded, third-party, repeat testing on every compounded batch.
SINCE 2016
Since 2016, over 10,000 researchers worldwide have relied on our trusted expertise to provide high-quality research compounds.
We are a veteran owned, US company committed to transparency, ensuring that all testing and reporting are publicly accessible to our customers.
Each product is carefully sealed, batch-coded, and shipped from our quality-controlled facilities located in Wyoming and California.
Our team of passionate professionals ensure we are able to offer the highest standard of safety and quality. To ensure accuracy and reliability, our products undergo rigorous third-party testing, including NMR, FTIR, HPLC, and LC-MS analysis.
Peptide stacks are clinically researched combinations of peptides that work together to maximize results for immune health, longevity, healing and muscle growth. By targeting multiple pathways at once, stacks can deliver more powerful, efficient, and personalized results than individual peptides alone.

Simon’s compounds are sourced, tested and shipped worldwide from our WY and CA based distribution sites.

Veteran and woman-owned, dedicated to operating with integrity, transparency & sustainability.

Rigorous, double-blind testing by an independent third-party laboratory to ensure the highest standards of purity and authenticity.

Fast shipping with expediting options worldwide. Free shipping on domestic orders over $500.
STEP 1
PREPARE: Supplies and clear dummy proof directions and 24/7 chat for questions.
STEP 2
ADMINISTER: Simple & clear instructions build routines people look forward to.
STEP 3
ROUTINE: See and feel powerful results that inspire people get out and enjoy the new them.
In Quality & Safety
Join the Community of Researcher who Trust Simon’s
Posted on brynna sytheTrustindex verifies that the original source of the review is Google. Thank you Simons so much - Everything arrived exactly as you said. I have a feeling you’re gonna be getting some new customers soon for 157 and PT 141.Posted on hailey kestrelTrustindex verifies that the original source of the review is Google. SO GOOD for ordering wholesale. I order for my medspa and they are so helpful and flexible with payment options and bulk discounts.Posted on Callisthène MardinandTrustindex verifies that the original source of the review is Google. I run a high-volume medical weight loss clinic and we’ve ordered well over 7,000 units from SimonsRx in the past year alone. Our practice has seen incredible outcomes with their Semaglutide Cagrilintide combination. Average patient weight loss is now tracking over 22% within the first 9 to 10 months of therapy. What stands out about Simons is their consistency, their reliability, and their complete transparency around testing. We review COAs on every batch and appreciate the level of trust this creates with our clinical staff and patients. The quality control is simply on another level.Posted on Tiana arnaud RamaromananaTrustindex verifies that the original source of the review is Google. Our clinic made the switch to SimonsRx after two other suppliers left us hanging without warning. We finally feel like we’re working with a company that values long-term partnerships. They run a tight ship. The team is extremely professional, responsive, and all over the details. It’s evident they’re veteran-owned. The peptides are exactly what they say they are. We test everything in-house and their quality consistently checks out.Posted on NSSR`S COLLEGE OF PHYSICAL EDUCATION BEEDTrustindex verifies that the original source of the review is Google. I’ve worked with nearly every peptide supplier out there and none compare to SimonsRx. We’ve had significant growth in patient volume since switching. The product quality is top tier and we’ve never once had a shipment delay or issue. They make it easy.Posted on Peter LeeTrustindex verifies that the original source of the review is Google. Absolutely love SimonsRX for all my peptide needs when it comes to recovery and semaglutide. They shipped fast and in discreet packaging. Highly recommendVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more