Immune Peptides
Our immune peptides are the compounds studied for how the immune system responds and regulates itself: Thymosin Alpha-1, LL-37, VIP and KPV, plus the Khavinson bioregulator Crystagen and KPV capsules.
Looking for something else? See our healing and recovery peptides and peptide bioregulators, or browse all research peptides.
What are immune peptides?
Thymosin alpha-1 is a 28-amino-acid peptide from the thymus, approved in some countries as thymalfasin. It’s studied for T-cell maturation and response. LL-37 is the only cathelicidin antimicrobial peptide humans make, and it kills microbes directly as well as signaling to immune cells.
VIP, vasoactive intestinal peptide, is a 28-amino-acid neuropeptide with strong anti-inflammatory effects on immune cells. KPV is a small alpha-MSH fragment studied in colitis and skin inflammation models.
For the published research behind this range, start with this PubMed search.
Immune Peptides in our range
- Crystagen 20mg, $105.00
- KPV 10mg, $76.00
- KPV Capsules 500mcg (60 Count), $160.00
- LL-37 5mg, $89.00
- Thymosin Alpha-1 10mg, $78.00
- VIP 10mg, $85.00
How to choose immune peptides
Choose by the side of immunity you’re studying. Thymosin alpha-1 is the usual pick for T-cell work, LL-37 for antimicrobial and barrier models, and VIP or KPV for inflammation.
KPV also comes in oral capsules, and Crystagen is the immune-linked peptide from the bioregulator series if you’re comparing it with better-known compounds.
Immune peptides: formats and prices
There are 6 products in this range: five freeze-dried vials and one capsule bottle. Prices run from $76.00 to $160.00. Every product page lists the amount, the format and the SKU, so you can compare like for like before you order.
Purity and testing for our immune peptides
Everything in this range is made in the USA, and every batch is tested by an independent U.S. laboratory for identity, content and purity, with a 99%+ HPLC standard. Batches are also screened for endotoxins, heavy metals and sterility. Most product pages show the current certificate of analysis in the photo gallery.
Store sealed vials in the freezer, or the fridge for shorter stretches, and reconstitute with bacteriostatic water. Every vial page lists the concentration you’ll get for each volume, and our 10 vial container keeps a study’s worth of vials together.
Immune peptides FAQ
Are your immune peptides in stock?
Yes. Everything listed here is in stock and ships from the U.S.
Are immune peptides for human use?
No. Everything we sell is for laboratory research only and isn’t approved for human or veterinary use.
Where are they made?
In the USA. We only sell U.S.-made research products.
Can I see a certificate of analysis?
Yes. Most product pages show the current batch’s certificate of analysis in the photo gallery, and we’ll email the report for any batch on request.
Do I need anything else?
Sterile bacteriostatic water to reconstitute the vials, and a vial container if you’re ordering several.
Buy immune peptides online
Pick a product above, add it to your cart and check out in a couple of minutes. Everything on this page is in stock. Add a few lab supplies to the same order and you’ll have everything you need to start.
For laboratory research use only. Not for human or veterinary use.
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