NEW VENDOR · U.S. SHIPPING · REVIEWED OCTOBER 1, 2026
Hello Stacks Coupon Code: 15% Off with PEPDEALS
Save 15% off eligible orders at Hello Stacks. Enter the code at checkout and confirm the final discount before paying.
Hello Stacks sells lyophilized research peptides, blends, research stacks, laboratory supplies, and the StackOne pen and cartridge range. Its public COA library links batch numbers to laboratory reports, so researchers can review the documentation for the specific lot.
Testing and Certificates of Analysis
Hello Stacks discloses three assays for its published vial lots through Vanguard Laboratory: HPLC purity, HPLC assay/content, and an LAL endotoxin screen. Reports include the compound, batch number, test date, and laboratory report ID. Its COA library includes links to the certificates and independent verification at the laboratory.
Testing coverage should be checked against the exact product and lot. The StackOne pen and refill cartridge line is a separate product format; a vial report should not be treated as proof of testing for a pen or cartridge. Review the relevant product documentation before ordering.
Products and research formats
The catalog includes BPC-157, TB-500, GHK-Cu, KPV, MOTS-C, NAD+, tesamorelin, GLP-1 R and GLP-1 T, plus research blends and laboratory reconstitution supplies. Strengths and stock vary by product. Research stacks and the StackOne range have separate listings.
StackOne: pre-mixed pens and cartridges
StackOne is Hello Stacks’ premium pre-mixed pen and cartridge line, supplied ready to use for laboratory research with no mixing or reconstitution required. Several compounds are available in this format. Featured listings include NAD+ 500 mg, GHK-Cu 50 mg, and GLP-1 R 20 mg; the range also includes refill cartridges. Product selection, strengths, and availability vary by listing.
Choose the exact pen or cartridge listing and review its contents, compatibility, storage requirements, and batch documentation. These formats are distinct from the freeze-dried vial catalog and remain labeled for research use only.
Shipping, payment, and returns
- Shipping: Currently limited to U.S. addresses. Free U.S. shipping on orders over $150. For orders below that threshold, confirm the shipping charge at checkout.
- Dispatch: The site advertises same-business-day shipping for qualifying orders and discreet, tracked packaging. Published cutoff times differ across pages; check with support if timing matters.
- Payment: Credit and debit card checkout; the terms also describe e-Check/ACH where offered. Available payment methods appear at checkout.
- Returns: Sales are final. Contact support about missing, incorrect, or damaged items. Cancellation requests must reach the vendor before shipment.
Bulk pricing and subscriptions
Hello Stacks offers the following quantity savings on eligible products:
- 1 unit: Listed product price.
- 5+ units: Save 10% per unit.
- 10+ units: Save 25% per unit.
For example, a product listed at $39 per unit is $35.10 per unit at 5+ units and $29.25 per unit at 10+ units, before any additional eligible coupon or shipping. Product prices and eligibility vary by listing.
A Subscribe & Save option is also advertised. Whether PEPDEALS stacks with bulk, subscription, or other promotional pricing is not yet confirmed; check the final checkout total.
Frequently asked questions
What is the Hello Stacks coupon code?
Use PEPDEALS for 15% off eligible orders through the Hello Stacks link on this page.
Where can I see the testing?
Open the vendor’s Lab Tests & COAs page and match the product and batch number. The disclosed vial panel covers purity, content, and endotoxins.
Does Hello Stacks ship internationally?
The current checkout states that shipping is limited to U.S. addresses.
Can I combine PEPDEALS with bulk discounts?
Stacking has not been confirmed. Check the final cart total rather than assuming multiple discounts apply.
Research Use Only. Not for human or animal consumption. PepDiscounts contains affiliate links; we may earn a commission at no additional cost to you. Vendor information reviewed October 1, 2026. Coupon details supplied by our affiliate partnership; website terms and product availability may change.