Peptide Coupon Codes
Exclusive discount codes for trusted peptide vendors. Apply at checkout to save on your next order.
Codes verified August 1, 2026
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Save 50% on all Ascension Peptides products with this exclusive discount code.
Known for: Strong on GLP-1 kits (retatrutide R-10/R-30, tirzepatide T-10/T-30) and community blends — KLOW, Wolverine, GLOW, FIT Stack. Biggest headline discount we track.
Testing: Third-party tested · HPLC · public COA
- Industry-leading 50% off coupon — biggest single discount we track
- 30+ peptide catalog including niche / longevity compounds (epitalon, foxo4-dri, humanin)
- COA published for all in-stock peptides
- Pre-mixed blend kits (KLOW, Wolverine, Glow) at meaningful discounts
- Higher gross prices before coupon — value comes from stacking the 50% code
- Inventory can swing on popular SKUs (retatrutide, tirzepatide) — restocks happen but checkout in time
Available Peptides (32)
Available Blends (4)
Available Kits (2)
Save 15% on all Ion Peptide products with this exclusive discount code.
Known for: Best blend variety — KLOW, GLOW, Tesa + Ipamorelin, CJC + Ipamorelin, Wolverine — plus retatrutide (ION-3R) and tirzepatide (ION-2T). Power-user favorite for stacks.
Testing: Third-party tested · HPLC + MS · COA per product
- 4.7 / 181-review Trustpilot — strongest reputation among newer vendors
- Best $/mg on retatrutide across the 7-vendor field (verified weekly)
- Clean COA presentation with mass-spec verification on every batch
- 15% coupon stacks across full catalog
- Smaller catalog (~25 peptides) — may not stock niche compounds
- Premium positioning means base prices run mid-tier before coupon
Available Peptides (38)
Glutathione
Selank
Vitamin B12
Topicals, Strips & Drops (8)
Available Blends (2)
Save 10% on all EZ Peptides products with this exclusive discount code.
Known for: Widest catalog (25+ peptides) with proprietary GLP-1 formulations — EZP-1P (semaglutide), EZP-2P (tirzepatide), EZP-3P (retatrutide), EZP-CG (cagrilintide) — plus full core-blend set.
Testing: Third-party tested · HPLC · public COA
- Lowest gross $/mg across our recommended catalog
- All six GLP-1 peptides in stock (semaglutide, tirzepatide, retatrutide, cagrilintide, liraglutide, survodutide)
- Third-party COA on every product, downloadable from product pages
- US-based fulfillment — typical delivery 2–4 business days
- Coupon is 10% (modest vs Ascension's 50%) — best for buyers who don't stack coupons
- Catalog narrower than Ascension's 30+ peptide selection
Available Peptides (34)
Topicals, Strips & Drops (1)
Available Blends (7)
Available Kits (13)
Save 10% on all Glacier Aminos products with this exclusive discount code.
Known for: Lowest $/mg on several core peptides. Competitive on tesofensine, wolverine stack, SS-31. Account signup required.
Testing: Third-party tested · 7-point panel · public COA
- Most rigorous testing on our roster — 7-point panel (HPLC, endotoxin, sterility, heavy metals), batch-searchable public COA, 99% purity guarantee
- 4.8 Trustpilot — second-highest score on our vendor roster
- Lowest GLP-1 pricing among full-catalog vendors after coupon
- Strong on novel / research compounds others don't carry
- 10% coupon on full catalog
- Catalog leans GLP-1 + amino acids — less depth on healing/longevity peptides
- Brand recognition lower than Ascension or EZ — newer to the market
Available Peptides (36)
5-Amino-1MQ
GHK-Cu
Semax
SLU-PP-332
Topicals, Strips & Drops (1)
Available Blends (5)
Save 15% on all Nura Peptide products with this exclusive discount code.
Known for: Best for niche formats — oral capsule peptides (BPC-157, SLU-PP-332, Tesofensine), pre-mixed nasal solutions (Selank, Semax), and the only Reta + Cagrilintide combo blend on our recommended list.
Testing: Third-party tested · HPLC + MS · public COA
- 15% coupon (thepeptidecatalog) stacks on already-low list prices
- Wide vial sizing — 10mg standard on most peptides, larger than most competitors
- Unique inventory: oral capsule peptides (BPC-157, SLU-PP-332, Tesofensine), pre-mixed nasal sprays (Selank, Semax), Reta+Cagrilintide combo blend
- Free shipping on orders over $175
- 30-day money-back guarantee on opened or unopened vials
- Newer vendor — launched early 2026, shorter track record vs the established 5
- COA available per batch but no Finnrick independent verification yet
- US shipping only
Available Peptides (26)
Topicals, Strips & Drops (3)
Available Blends (6)
Save 10% on all Mile High Compounds products with this exclusive discount code.
Testing: Third-party tested · 7-point panel · COA per product
- cGMP-made with a 7-point batch panel (identity, purity, net content, endotoxin, sterility, heavy metals, variance)
- Per-vial QR code links to that specific batch's Certificate of Analysis
- States it operates an FDA-monitored laboratory facility to cGMP standards
- Carries oral capsule formats and bioregulators that most injectable-only vendors skip
- 10% coupon (thepeptidecatalog) stacks across the research catalog
- Premium pricing — base $/mg runs above budget vendors even after the code
- Free shipping only kicks in at $300+ — higher threshold than most vendors
Available Peptides (38)
Topicals, Strips & Drops (2)
Available Blends (5)
Save 10% on all Swiss Chems products with this exclusive discount code.
Known for: Broad catalog including oral formulations, research blends, and novel peptides.
Available Peptides (30)
Topical Skincare
Cosmetic copper-peptide creams & exosome serums. Prices set by the vendor and may change.
Affiliate links — we may earn a commission at no extra cost to you. Cosmetic products; not intended to diagnose, treat, cure, or prevent any disease.
Compare All Vendors
| Vendor | Discount | Peptides | COA Testing | Best For |
|---|---|---|---|---|
| Ascension Peptides | 50% off | 32+ | Yes | Strong on GLP-1 kits (retatrutide R-10/R-30, tirzepatide T-10/T-30) and community blends — KLOW, Wolverine, GLOW, FIT Stack. Biggest headline discount we track. |
| Ion Peptide | 15% off | 38+ | Yes | Best blend variety — KLOW, GLOW, Tesa + Ipamorelin, CJC + Ipamorelin, Wolverine — plus retatrutide (ION-3R) and tirzepatide (ION-2T). Power-user favorite for stacks. |
| EZ Peptides | 10% off | 34+ | Yes | Widest catalog (25+ peptides) with proprietary GLP-1 formulations — EZP-1P (semaglutide), EZP-2P (tirzepatide), EZP-3P (retatrutide), EZP-CG (cagrilintide) — plus full core-blend set. |
| Glacier Aminos | 10% off | 36+ | Yes | Lowest $/mg on several core peptides. Competitive on tesofensine, wolverine stack, SS-31. Account signup required. |
| Nura Peptide | 15% off | 26+ | Yes | Best for niche formats — oral capsule peptides (BPC-157, SLU-PP-332, Tesofensine), pre-mixed nasal solutions (Selank, Semax), and the only Reta + Cagrilintide combo blend on our recommended list. |
| Mile High Compounds | 10% off | 38+ | Yes | |
| Swiss Chems | 10% off | 30+ | Yes | Broad catalog including oral formulations, research blends, and novel peptides. |
How to Use These Codes
- 1Click the code above to copy it to your clipboard.
- 2Visit the vendor and add your peptides to cart.
- 3Paste the code at checkout to apply your discount.
How We Verify Codes
Every code on this page is an exclusive partnership between The Peptide Catalog and the vendor. These are not scraped from the internet — they are negotiated directly and verified regularly. We test each code by adding items to cart and confirming the discount applies at checkout. If a code ever stops working, let us know.
Last verified: August 1, 2026
Disclosure: We may earn a commission when you use these coupon codes. This helps support the site at no extra cost to you.