New Lot Restock — Fall batch now in stock · Shipping worldwide ·
Direct-Source Supplier · Research Use Only
Know what's in the vial.
Peptolis sources research peptides directly from our manufacturing partners and posts an independent HPLC and heavy-metals report for every single lot — before you order, not after you ask.
Independently Tested, Every Lot
Cold-Chain Shipped
U.S.-Based Team
The Peptolis Guarantee
Documented quality for research and laboratory use.
HPLC-Verified Purity
Independent third-party labs, lot by lot
Same-Day Shipping
Orders ship the same business day
Lot-Specific COAs
Published and open to read before you buy
Most Researched This Month
Shop Peptides
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LL-37
$74.00 Select options This product has multiple variants. The options may be chosen on the product page -
TB500 (Thymosin B4 Acetate)
Price range: $18.00 through $106.00 Select options This product has multiple variants. The options may be chosen on the product page -
BPC-157
Price range: $18.00 through $57.00 Select options This product has multiple variants. The options may be chosen on the product page -
CJC-1295 + Ipamorelin Blend
Price range: $112.00 through $182.00 Select options This product has multiple variants. The options may be chosen on the product page
How We Verify Every Lot
Every batch goes through the same three steps before it's ever listed for sale.
Step 1 - Sourced & Lot-Assigned
Each batch is synthesized by our manufacturing partner and given a traceable lot number before it ever reaches our facility.
Step 2 - Independently Tested
A third-party lab runs HPLC purity analysis and a heavy-metals screen on every lot — not a sample, the actual batch you'll receive.
Step 3 - Reported, Then Released
The certificate of analysis is published under that lot number first. Only then does the product go up for sale.
Read a Real Certificate of Analysis
Every product page links to the exact COA for the lot you're ordering. Here's what one looks like.
Product: MOTS-C Stack
Lot: LX251205
RP/HILIC-HPLC with UV detection
Purity (HPLC)
99.499%
Check out popular products
Popular Products
-
LL-37
$74.00 Select options This product has multiple variants. The options may be chosen on the product page -
TB500 (Thymosin B4 Acetate)
Price range: $18.00 through $106.00 Select options This product has multiple variants. The options may be chosen on the product page -
BPC-157
Price range: $18.00 through $57.00 Select options This product has multiple variants. The options may be chosen on the product page -
CJC-1295 + Ipamorelin Blend
Price range: $112.00 through $182.00 Select options This product has multiple variants. The options may be chosen on the product page
Why We Choose Peptolis
Direct From the Source
No resellers, no markup layers — pricing reflects what direct sourcing actually costs.
Tested, Not Just Trusted
Every lot ships with a published third-party COA you can check against what's in your hand.
Shipped Same Day
Orders placed before 2 PM ET ship same-day in cold-chain packaging.
Real Support
Questions about a lot, a compound, or an order — a person answers, not a bot.
SUPPORT
Frequently Asked Questions
What purity can I expect from Peptolis compounds?
Every compound we carry is independently tested via HPLC, with most lots verified above 99% purity. The exact figure for the batch you’re ordering is listed on that lot’s certificate of analysis (COA) — not an average across our catalog, but the actual result for the vial you’ll receive.
Are these products intended for human use?
No. All Peptolis products are sold strictly for laboratory and in-vitro research use. They are not drugs, dietary supplements, or cosmetics, and are not intended for human or animal consumption, diagnosis, treatment, or prevention of any condition. Products have not been evaluated by the FDA.
How is each order packaged and shipped?
Orders are packed in cold-chain packaging to protect temperature-sensitive compounds in transit. Shipping is a flat $60 per order, and delivery typically takes 10–15 days from the time your order ships.
Is there a free shipping threshold?
No — shipping is a flat $60 per order regardless of order size.
Do you offer pricing for labs or bulk research orders?
Yes. Labs, institutions, and research teams ordering in volume can request bulk pricing directly — contact our team with your compound list and order size for a custom quote.
How do I find the COA for my specific lot number?
Each product page links to the certificate of analysis for the lot currently in stock. If you’ve already received your order and want to confirm the lot number printed on your vial, contact us with that number and we’ll send the matching COA.
FOR LABS & TEAMS
Ordering for a Lab or Research Team?
Bulk pricing is available on most compounds, with lot-matched COAs for every unit in the order — so every vial on your bench traces back to the same verified batch.