Are your products tested? +
Yes. Every lot is third-party tested for purity and identity before it's listed, then graded by Finnrick. The signed COA for the exact lot you receive is published on our lab reports page, and you can check it before you order.
What makes a good research peptide vendor? +
A trustworthy vendor publishes an independent, lot-specific COA for every batch, tests by HPLC and mass spectrometry, prices fairly, ships discreetly with tracking, and stands behind purity. We do all of these and back it with a tested-or-refunded guarantee: if your own test contradicts the published COA for a lot, you get a full refund and keep the vial.
Is Next Level Labs legit? +
Yes, and you can verify it yourself in under a minute. The lot number printed on your vial maps to that exact batch's certificate of analysis, published on our lab reports page. Every batch is independently tested by HPLC and LC-MS and graded by Finnrick, not tested in-house. No unverifiable numbers, no recycled COAs, no photoshopped reports.
How do I know the peptides aren't fake or underdosed? +
The lot-specific COA confirms both identity (mass spec) and purity (HPLC) for the exact batch you receive, so you can see it is the right compound at the labeled quality. If your own independent test contradicts our published COA for that lot, you get a 100% refund and keep the vial.
How does your pricing compare? +
We price research peptides competitively, from $30, with bulk discounts of 5% at five or more vials and 20% at ten or more. Skipping card processing keeps fees out of the price, and shipping is free over $200.
Are these for human use? +
No. Everything we sell is a research compound for in vitro laboratory use only. Nothing on this site is medical advice, and no statement here has been evaluated by the FDA.
How fast do orders ship? +
Orders ship within 1-2 business days after payment clears, via UPS with tracking. Packaging is a plain mailer with no NLL branding. Shipping is a flat $10 and free over $200. Continental US only.
What payment methods do you accept? +
Venmo Business (@NLL01), Zelle, or bank transfer. Skipping card processing keeps fees and fraud costs out of our prices. Both take about 30 seconds at checkout.
Can I return a product? +
Unopened vials can be returned within 14 days of delivery for a full refund. Damaged-in-transit vials are replaced free. And if your independent test contradicts our published COA, you get a 100% refund and keep the product.
Do I need bacteriostatic water? +
Lyophilized peptides arrive as dried powder, and laboratories bring them into solution with bacteriostatic water. We stock USP-grade bacteriostatic water so it can ship in the same order. Handling parameters should follow the recipient laboratory's standard protocols.
