Wholesale peptides for resellers and institutions.
One simple channel. Wholesale prices are published on every product page and drop up to 30% with volume. Send your order, add your ship-to details, and our US team confirms the total in writing — typically within a few hours during business hours.
THE PROCESS
FOUR STEPSBuild your order
Pick your compounds, lots, and quantities from the catalog. The minimum is 50 vials (5 kits) across the order, in 10-vial kits — mix as many compounds as you like.
Add your details
Add your ship-to details — and a resale certificate if you have one. It's welcome, not required.
We confirm it
Your order totals at the volume tier your kit count earns. Our US team confirms the total and lead time in writing, typically within a few hours during business hours.
We ship it
Lots ship the same business day from our Southern California warehouse with certificates attached — check any batch against the library.
BUYING PEPTIDES IN BULK
3 TIERS · ORDER-WIDE| TIER | ORDER SIZE |
|---|---|
| Tier 1 | 5–24 kits (50–240 vials) |
| Tier 2 | 25–99 kits (250–990 vials) |
| Tier 3 | 100+ kits (1,000+ vials) |
The tier counts every kit on the order, across all compounds, so a bulk order of several compounds prices the same as one compound in the same quantity. As a worked example, 1,000 vials of Tirzepatide 10 mg cost $7,000.00 at Tier 3, against $10,000.00 at list — $3,000.00 less — and ship by UPS 2nd Day Air for $105.00 (3 boxes).
Every product page shows the same figures for its own compound: price per vial at each tier, cost per milligram by fill, and order totals at 50, 250, 1,000 vials. See the bulk tirzepatide pricing, wholesale retatrutide, wholesale BPC-157, or browse the full wholesale catalog.
WHAT TO VERIFY IN ANY PEPTIDE SUPPLIER
6 QUESTIONS| ASK ANY SUPPLIER | WHY IT MATTERS | PEPTIDE WHOLESALERS |
|---|---|---|
| Is the certificate for the batch, or a sample? | A sample certificate describes someone else's batch. It says nothing about the vials in your order. | Per batch. 63 certificates are published in full, each with its HPLC chromatogram. |
| Can the certificate be verified with the laboratory? | A PDF can be edited. The laboratory's own record cannot. | Yes. Every certificate carries the lab's report number and access code, verifiable directly with the lab — the link is on every certificate page. |
| Which tests are run? | Purity alone does not say what the substance is, how much is in the vial, or whether it is sterile. | Six: purity by HPLC, identity by LC-MS, net content, endotoxin, sterility, and heavy metals. |
| Where is the stock, and when does it ship? | Stock held overseas adds customs holds and weeks of transit to every reorder. | Costa Mesa, California. Orders in by noon Pacific ship the same business day by UPS 2nd Day Air. |
| Are prices published before you ask? | Quote-only pricing makes two suppliers impossible to compare. | Per-vial prices on every product page, with 3 volume tiers. |
| Is the minimum per compound or per order? | A per-compound minimum forces an order of every compound up to the floor. | 50 vials (5 kits) across the whole order, mixed across compounds. |
WHAT YOU GET FROM A US SUPPLIER
FIVE PILLARSSIX-PANEL TESTED
Every batch tested by an independent lab for identity, quantity, purity, endotoxins, heavy metals, and sterility.
SAME-DAY SHIPPING
Orders in by noon Pacific ship the same business day from Costa Mesa, California — UPS 2-Day Air standard.
MADE IN THE USA
Sourced in the USA. Fill and finish, labeling, warehousing, and fulfillment handled in-house. Never relabeled from overseas.
COAS PUBLISHED
Certificates of analysis published in full, searchable by batch number and verifiable with the lab.
WHOLESALE SUPPORT
Dedicated US support from order to delivery — not an overseas ticket queue.
WHOLESALE FAQ
17 ITEMSWhat's the minimum order?
50 vials (5 kits) across the whole order. Mix any compounds to reach it, in 10-vial kits. Supplies such as bacteriostatic water ship with your order but don't count toward the minimum. Can't reach it? Send your cart from the order page as a quote request and the team will tell you what it can do.
How does volume pricing work?
Your tier counts every kit on the order, across all compounds. The more kits, the bigger the discount — up to 30% off list. Supplies are priced flat and sit outside the tiers.
How do I pay?
Send your order on the site in minutes — nothing is charged up front. We confirm the total in writing and invoice you before anything ships. We accept wire, ACH, Zelle & credit card. Paying by credit card adds a 5% processing fee. It is applied to your invoice, not on the website: every total shown here is before any card fee. Wire, ACH and Zelle carry no fee.
How fast does it ship?
Orders in by noon Pacific, Monday to Friday, ship the same day by UPS 2nd Day Air and arrive in 1–2 business days.
What does shipping cost?
Shipping within the United States is charged per 400 vials: UPS 2nd Day Air $35.00 or UPS Next Day Air $100.00 for each 400 vials or part of 400, so 401–800 vials ships 2nd Day Air for $70.00. You choose the service on the order form. Orders in by noon Pacific ship the same business day from Costa Mesa, California; 2nd Day Air arrives in 1–2 business days — about 1–2 days in California, around 2 nationwide. Special destinations are quoted individually. Cold-chain packaging, where a compound requires it, is quoted and billed separately.
Is every batch tested?
Yes. Every peptide batch is tested six ways by an independent lab: purity, identity, quantity, sterility, endotoxins and heavy metals. Search any batch in our certificate library — 63 certificates are published in full.
Do vials come labeled?
Stock vials ship unlabeled. Want your brand on them? That's our White Label program.
Can you do custom fills or volumes?
Yes. Request a custom order or text an account manager at (949) 795-2085, and we'll quote it fast.
Do I need a resale certificate?
It's welcome but not required. Add it when you send your order if you have one.
What if an order arrives damaged or wrong?
Research peptides are not returnable once shipped: sealed vials and chain-of-custody mean a returned vial cannot be released to another buyer. If a shipment arrives damaged, incomplete, or is not what you ordered, contact the desk and we will make it right.
Are you a peptide wholesaler or a retailer?
A wholesaler. Peptide Wholesalers sells research peptides by the kit to resellers and institutions, with a 50-vial minimum across the order. There is no retail checkout: every order is confirmed in writing and invoiced before it ships.
How much do bulk peptides cost?
Every product page publishes its price per vial at all 3 tiers, with worked totals for 50, 250, 1,000 vials. For example, 1,000 vials of Tirzepatide 10 mg cost $7,000.00 at Tier 3, against $10,000.00 at list. The tier comes from the kit count of the whole order, mixed across compounds.
Who do you sell to?
Businesses that resell or work with research peptides: resellers, brands launching their own label through the white-label program, and research institutions. A resale certificate is welcome but not required.
Can a large order ship from a single lot?
Yes. Large orders can ship from a single lot of each compound, so every vial of that compound on the order is covered by one certificate of analysis. Ask for it in the order notes.
Do you ship internationally?
No. Orders ship from Costa Mesa, California, to US addresses only, by UPS.
Do you offer payment terms?
Not at this time. Every order is confirmed in writing and invoiced, and paid before it ships.
Do you sell bulk peptide powder or API?
No. Every compound ships as finished, lyophilized vials in 10-vial kits, never as loose powder or active ingredient by the gram. Custom fills, volumes and formats of catalog compounds can be quoted through custom orders.
Ready to order?
50-VIAL MINIMUM · MIX ANY COMPOUNDS · US-SOURCED & WAREHOUSED · COAS PUBLISHED
Start your order →