Simms Research vs Ion Peptides: Where to Order in 2026

Ion Peptide is a year-old shop that grew on social media, with a weight-loss line kept under house names like ION-3R and ION-2T. Simms Research’s review of Ion Peptides covers who runs it, what its buyers say and what outside tests found. This piece takes the next step, the one a buyer faces before moving an order: what the same compounds are called and cost at Simms Research, how each shop ships and which one stands behind a box that vanishes, what the batch reports show, how checkout works, and how much help comes with a first vial.

Simms Research sells freeze-dried research peptides by their compound names, synthesized in the United States in cGMP-aligned facilities. Its core compounds have public batch reports from an independent lab with ISO certification, and every order ships under a written delivery guarantee.

ION-3R, ION-2T and the rest: the Simms Research names

At Simms Research, ION-3R is Retatrutide (GLP-3) and ION-2T is Tirzepatide (GLP-2), both in four sizes from 10mg up to 60mg; What Is GLP-3? explains where the GLP-3 name comes from. The rest of the map, at Simms’s regular prices:

Some of what Ion buyers came for isn’t on Ion’s public shop anymore. BPC-157, TB-500, a GHK-Cu vial and MOTS-c have dropped out of its open catalog, though its report library still carries them. At Simms Research each one is listed with a price and a batch report: BPC-157 from $69, TB-500 at $66, GHK-Cu from $48 and MOTS-c at $65, plus the Wolverine Peptide Stack, a BPC-157 and TB-500 pairing, at $79.

Is Ion Peptides cheaper? What each price covers

Ion’s list prices on the weight-loss line sit lower than Simms Research’s regular prices above, and its multi-vial pricing and a discount for paying by bank transfer take more off. What sits next to Ion’s lower number is written into its own terms. Free shipping starts at $250 there and at $200 at Simms Research. Ion’s biggest multi-vial discount starts at ten of the same vial. And a box lost or stolen on the way is the buyer’s to chase with the carrier, where Simms Research replaces or refunds it.

Simms also pays back on every order. Simms Rewards earns 5 points for each dollar of product, a first order adds 100 welcome points, and points can be spent on free vials, including retatrutide, tirzepatide, BPC-157 and GHK-Cu. Ion has no points program; its store credit comes only through its testing rebate.

Shipping speed, lost packages and returns

At Simms Research, an order in by 5 PM Eastern leaves the same day, by FedEx 2-Day (free over $200) or the slower UPS Standard at three to five business days. It delivers across all 50 states and overseas, and the tracking number comes by email once the box is on its way.

Ion’s written weekday cutoff is also 5 PM Eastern, and it offers a next-day upgrade at checkout. Its policy adds that same-day dispatch isn’t guaranteed in busy periods, and the banner asking buyers to allow two extra days for order processing, already up when Simms reviewed Ion on October 6, was still on its homepage on October 16. Ion delivers to US addresses and US territories only.

The wider gap is what happens when a box doesn’t arrive. Every Simms Research order comes with the Free Delivery Guarantee, free and automatic: a parcel that goes missing on the way, vanishes after a delivery scan or shows up damaged is replaced at no cost, or refunded with its shipping when no replacement can be sent. Simms handles the carrier itself; plain delays and customs holds sit outside the cover. The exact terms are in its shipping policy.

Ion’s terms run the other way: no responsibility for a parcel the carrier loses or a thief takes, and no shipping refund when a box turns up late. Ion does take back sealed, unopened items after a change of mind, at the buyer’s postage and without the expedited shipping refunded. Simms’s sales are final for a change of mind, and its cover goes to what actually goes wrong: an item that arrives wrong or defective is replaced or refunded if support hears about it within 48 hours, per its refund and return policy.

What the batch reports show

Simms Research’s newest retatrutide batch came back 99.611% pure, each 10mg vial held 10.68mg on average, and it cleared its endotoxin, heavy-metal and microbial checks. The July batches of compounds both shops sell:

Every content figure there is an average across three vials, LC-MS confirms the identity, and older batches stay listed, six of them for retatrutide going back to October 2025. All of it is public on Simms’s lab results page, filed by compound, and its guide to reading a certificate of analysis explains each field.

Ion posts its own reports every month, filed under its house codes. Simms files each report under the compound’s name, the same name that’s on the vial and the product page.

Paying and checkout

At Simms Research checkout, a buyer can pay by Visa, Mastercard, Amex or Discover card, tap Apple Pay or Google Pay, spread the cost with Klarna, or send it through Venmo, and none of them costs extra. Sign-in is a one-time code emailed at checkout, with no password to create. The details are on its payment options page.

Ion’s FAQ lists two ways to pay: a credit or debit card, or a bank transfer with a discount attached. Klarna installments, Venmo and phone wallets are on the Simms side only.

Mixing and dosing help for a first order

Simms Research publishes the help a first vial needs: a peptide calculator that turns any vial size and dose into syringe units, dosage guides for retatrutide and tirzepatide, a walkthrough for mixing retatrutide, and a storage guide covering the vial before and after mixing. Research Water, 10mL for $20, goes in the same box.

Many of Ion’s buyers are new to research peptides, and Ion’s contact form asks each of them to tick a box accepting that its support can’t give dosing or preparation guidance. The Simms calculator takes any vial size, so it works just as well for an ION-3R or ION-2T vial already in the fridge.

Ion or Simms: which order goes where

So is Simms Research better than Ion Peptides? Ion holds a narrow set: the lower sticker price, semaglutide, a next-day option and a return window for sealed vials. Simms Research holds the rest of the order: the compound’s name on the vial and on a three-vial report, an open listing for BPC-157, TB-500, GHK-Cu and MOTS-c, a box that is replaced if it goes missing, free 2-day shipping from $200, a wider choice at checkout, and points that come back as vials. For a buyer who wants the order covered from checkout to doorstep, Simms Research is the better place to order. Everything above is on Simms Research’s shop.

Frequently asked questions

Is Simms Research legit?

It is, and each part can be checked. Simms Research’s lab results page is open to anyone and carries batch reports from an independent ISO-certified lab, and its Free Delivery Guarantee is written into its policies. Support picks up at 855-592-8507 on weekdays from 9 AM to 5 PM Eastern, and most emails to support@simmsresearch.com get an answer within a business day; both are on its contact page.

Is Ion Peptides cheaper than Simms Research?

Ion’s list prices on the weight-loss line sit lower. Simms Research’s regular prices come with free FedEx 2-Day from $200, cover for a lost, stolen or damaged box, and Rewards points on every order.

What is ION-3R called at Simms Research?

Retatrutide (GLP-3), from $84 for the 10mg vial up to $259 for 60mg. ION-2T’s match is Tirzepatide (GLP-2), with the 10mg vial at $65.

Does Ion Peptides cover lost or stolen packages?

No. Ion’s shipping terms say it isn’t responsible for packages lost by the carrier or stolen, and send the buyer to the carrier. Simms Research replaces or refunds a lost, stolen or damaged box under its Free Delivery Guarantee.

Can I order from outside the United States?

Not from Ion, which delivers to US addresses and US territories only. Simms Research ships overseas as well as to every state, and the buyer covers any import duties.

Does this comparison come with a discount code?

No. There’s no code here and no affiliate link; every price quoted is Simms Research’s regular one, and every order earns Rewards points.