Amino Club Promo Code: PSTACK

What is the Amino Club promo code?

The Amino Club promo code is PSTACK, and it takes 20% off your first Amino Club order in November 2026. It is the same code whether you search for an Amino Club promo code, discount code, coupon code or aminoclub.com code. Enter it in the promo or discount field at checkout on aminoclub.com, then check that the 20% line appears in the order summary before you pay.

How do I apply PSTACK at Amino Club checkout?

Open Amino Club through the PeptideStack link, add your products, and type PSTACK into the promo or discount field at checkout.

1. Click Shop Amino Club on this page. The link opens aminoclub.com with the PeptideStack affiliate tag attached.
2. Confirm the researcher verification prompt. Amino Club sells research compounds only, for laboratory use.
3. Add your products to the cart and go to checkout.
4. Enter PSTACK in the promo or discount field and apply it.
5. Check that the 20% discount line shows in the order summary, then complete payment.

Watch the coupon walkthrough

The walkthrough was recorded in July 2026. Amino Club's checkout layout may look different today.

Who can use the Amino Club promo code?

PSTACK is for your first Amino Club order: it takes 20% off that order at aminoclub.com. If you have already ordered, you still earn Amino Club's own Business Credit on every order, and you can use the vendor's own promotions and volume pricing covered below.

Is there an Amino Club 30% or 40% off code?

Those percentages come from Amino Club's own time-limited promotions, not from the PeptideStack code. As observed on November 4, 2026, the Amino Club store advertised 40% off every research compound with its own code FALL40, shown with a countdown. Earlier campaigns used other codes and percentages.

PSTACK is the separate 20% first-order code tracked by PeptideStack. When a vendor promotion is running, compare the cart total with each option before you pay.

How much can you save at Amino Club?

PSTACK saves 20% on a first order. The figures below are illustrative calculations using Amino Club's lowest advertised prices on November 4, 2026, assuming the 20% first-order discount applies to those items. They are not verified checkout totals.

Amino Club also has its own savings programs, separate from PSTACK:

• Business Credit: every order earns 2.5 credit per $1 on a free Member account, and 100 credit equals $1 off a later order. Paid Research Access tiers earn 3.5, 5 or 10 credit per $1.
• Volume Pricing for Labs: 10 or more units of one compound are 40% off each, and 50 or more units are 50% off, with free 2-day delivery.
• Research Panel Builder: a monthly panel of any 4 compounds at 40% off list price, with Amino H2O included and free 2-day delivery. It starts with 3 monthly deliveries.

Does Amino Club offer free shipping?

Yes. Standard shipping is free on orders over $100 and is applied automatically at checkout when the order qualifies. Below $100, standard shipping is calculated at checkout.

• Processing: 0-2 business days. Orders placed before 3:00 PM ET (12:00 PM PT) on a business day typically ship the same day.
• Standard: 1-4 business days by FedEx or USPS Ground, with tracking and insurance.
• 2-Day and Overnight: available by FedEx or USPS, priced at checkout.
• Packaging: plain packaging with free shipment protection on every order. Peptides ship lyophilized in cushioned vials.

Does Amino Club ship internationally?

No. Amino Club ships to all 50 US states, including Alaska and Hawaii (with longer transit times), plus PO Boxes and APO/FPO addresses by USPS. Its shipping page says international shipping is not available, so it does not ship to countries such as Australia.

What is Amino Club's return and refund policy?

Amino Club offers damage protection, not refunds. If an order arrives damaged in transit, defective or incorrect, email [email protected] with your invoice number and photos within 14 days of delivery, and Amino Club sends a one-time replacement once the claim is approved.

• One replacement per account per invoice, and every claim is reviewed.
• No refunds for change of mind or dissatisfaction.
• Not eligible: opened vials, claims without photos, claims made after 14 days, and recurring invoices, research panels or Subscribe & Save orders.
• Self-serve cancellation opens 8 hours after an invoice is finalized and closes once it ships.

What payment methods does Amino Club accept?

Amino Club accepts Visa and American Express credit cards, plus Apple Pay and Google Pay, according to its FAQ. It does not offer net terms.

Does Amino Club test its peptides?

Yes. Amino Club says every batch is tested at an independent ISO 17025 accredited laboratory, against a 99%+ purity standard, and it publishes the Certificate of Analysis for each lot.

• Panel: Amino Club's current quality page describes ten assays per batch: purity (HPLC), net peptide content, identity, fentanyl screening, HPLC conformity, heavy metals (ICP-MS), sterility (PCR), endotoxin, solubility and closure integrity. Individual certificates may also report product pH.
• Public library: the certificate page showed 124 public certificates across 51 compounds on November 4, 2026.
• Lot matching: each vial label carries a QR code that opens that lot's certificate.
• Sourcing: Amino Club says its peptides are made by vetted US-based manufacturing partners. It is a supplier, not the manufacturer.

Amino Club also sells Amino H2O, its bacteriostatic water. See our Amino H2O vs bac water guide for what is in it.

Is Amino Club legit?

Amino Club describes itself as a US-based research peptide supplier and publishes a searchable library of lot certificates. Its Trustpilot profile shows predominantly positive reviews, while the cited Reddit discussion includes criticism of its pricing. It sells research compounds only, not for human or veterinary use.

• Trustpilot: the claimed Amino Club Trustpilot profile showed a 4.7 rating from 681 reviews on November 4, 2026. Trustpilot notes that the company has not invited reviews recently.
• Reddit: in the r/GLP1ResearchTalk thread "Has anyone ever heard of aminoclub and tried the GLP-3???", some commenters describe the supplier as legitimate and others criticise its pricing.

"They are wildly expensive! GLP3 would be their Reta. I get a Reta 20mg for less than the price of their Reta 10mg and I get it from a US seller."

u/Own-Interaction-669 in r/GLP1ResearchTalk

For our full assessment of the testing, pricing and service, read the Amino Club review or compare vendors in our peptide vendor reviews hub.

Is Amino Club the same as Amino Science, Amino Asylum, Amino USA or Amino Tech?

No. Amino Club is aminoclub.com. Several other vendors share the word "amino", but they are separate businesses on their own domains with their own codes, so PSTACK only works at Amino Club.

• Amino Science Labs (aminoscience.io) is a separate company with its own catalog and codes.
• Amino Asylum (aminoasylumofficial.com) is a separate store that also sells SARMs and research chemicals.
• Amino USA (aminousa.us.com) is a separate storefront with its own sale codes.
• Amino Tech is a separate vendor; see our Amino Tech coupon code page.
• Amino Vault is also separate; see our Amino Vault coupon code page.

Amino Club vs alternatives

Choose Amino Club if you want a US supplier with a large public certificate library, fast domestic shipping and free shipping over $100. Choose an alternative if you want lower list prices or a different testing record.

Comparing more suppliers? Our peptide vendor reviews hub covers each vendor we have reviewed.