Peptide Vendor Coupon Codes
Every active discount code across all 6 verified vendors — one code (PEPTIDEX) works everywhere. Up to 40%+ off when stacked. No hidden minimums.
Bio Longevity Labs — 15% off with PEPTIDEX
Bio Longevity Labs regularly runs 25–30% sitewide sales. Because PEPTIDEX stacks on top, you can hit 40%+ total savings during a sale — check their homepage before ordering.
The Code: PEPTIDEX
One code, 6 vendors. Works at checkout on all orders — no minimum purchase required at most vendors.
All Active Coupon Codes
| Vendor | Code | Savings | Action | |
|---|---|---|---|---|
| 15% OFF | ||||
| 2 | 20% OFF | |||
| 3 | 15% OFF | |||
| 4 | 15% OFF | |||
| 5 | 15% OFF |
* All codes verified by the PeptiDex team. We receive a commission when you use our links — this funds our research. Prices shown are pre-discount.
Cheapest Price Per Peptide
Best price after applying PEPTIDEX — updated May 2026.
Best price after code at Limitless Life
10mg vial · $4.00/mg
Best price after code at Amino Club
10mg vial · $4.00/mg
Best price after code at Amino Club
10mg vial · $4.00/mg
Best price after code at Amino Club
5mg vial · $30.00/mg
Best price after code at Amino Club
10mg vial · $18.00/mg
Best price after code at Amino Club
10mg vial · $6.00/mg
Best price after code at Amino Club
10mg vial · $6.00/mg
Best price after code at Limitless Life
50mg vial · $0.60/mg
Best price after code at Bio Longevity Labs
20mg vial · $2.85/mg
Best price after code at Bio Longevity Labs
10mg vial · $25.00/mg
Best price after code at Bio Longevity Labs
5mg vial · $9.59/mg
Get notified when new deals drop
We alert subscribers first when vendors run flash sales or add new codes. Usually 1–2 emails/month.
Vendor-Specific Coupon Guides
Frequently Asked Questions
Do I need different codes for each vendor?
No — the code PEPTIDEX works at all 6 vendors we list. Enter it at checkout on any vendor's site for the discount shown in the table above.
Can I stack the code with vendor sales?
Only at Bio Longevity Labs. Their PEPTIDEX code stacks on top of their active sitewide sales, often resulting in 40%+ total savings. All other vendors: the code applies as a standalone discount.
Which vendor has the biggest discount?
Amino Club offers 20% off and is our Editor's Choice for quality. Bio Longevity Labs offers 15% that stacks with sales — the only vendor where your code stacks with site-wide promotions.
Are these codes for research use only?
Yes. All peptides sold by these vendors are for research purposes only and are not approved for human use by the FDA. PeptiDex does not provide medical advice.