NSI-189 Price Comparison across 3 vendors

Live prices with our codes applied · Updated October 8, 2026
Today's best NSI-189 deal

Lowest price: $35.99 for 20mg at SwissChems.

Lowest price$35.9920mg, SwissChems
Best per mg$1.8020mg, SwissChems
Vendors3in stock now
Sizes120mg

Compare NSI-189 prices from every vendor on Peptideals that sells it, with each vendor's code already applied. Only in stock listings are shown, and prices update as vendors change them. For research use only.

Best NSI-189 price by size

The cheapest in-stock option for every size, with the vendor's code already applied.

SizeVendorsCheapest atCodePrice with codePer mg
20mg3SwissChemsPEPTIDEALS$35.99$39.99$1.80

Compare every NSI-189 listing

Filter by size, format and vendor. Prices include each vendor's code.

Vial1

NSI-189

SwissChems
In Stock
Next Chems
In Stock
Disguised Alpha
In Stock

Best NSI-189 deals right now

The biggest discounts from vendors selling NSI-189.

How to pay less for NSI-189

Compare the final price

List prices are misleading. Every price on this page already includes the vendor's code, so the cheapest result is the cheapest checkout.

How we compare prices

  • Every price includes the vendor's Peptideals code
  • Sales and stacked codes are tested in a real cart before we show them
  • Only in-stock listings, from vendors that passed our COA check

Watch for weekend deals

BOGO and buy 2 get 1 free sales can cut the price further. We flag them on the deals page and in our free deal alerts.

Same compound, different names

Many vendors list NSI-189 under their own names or codes. We group them so you see every listing:

NSI-189 PhosphateNSI-189 Phosphate (20mg/capsule), 60 CapsulesNSI-189 Phosphate – Powder, 1 gram

NSI-189 price FAQ

What is the cheapest NSI-189 right now?

The lowest price on Peptideals today is $35.99 for 20mg at SwissChems with code PEPTIDEALS. Prices and codes change often, so check the live table before you buy.

What is the best NSI-189 price per mg?

Among sizes sold by several vendors, 20mg at SwissChems is the best value right now at $1.80 per mg.

Are there NSI-189 coupon codes?

Yes. 3 vendors on Peptideals sell NSI-189, and the prices shown already include our code for each one. Some codes stack with vendor sales for bigger discounts.

Why do vendors use different names for NSI-189?

Many research vendors list NSI-189 under their own product names or codes. We group them so you can compare every listing in one place, including NSI-189 Phosphate, NSI-189 Phosphate (20mg/capsule), 60 Capsules, NSI-189 Phosphate – Powder, 1 gram.

Does Peptideals sell NSI-189?

No. We compare prices and deals from independent vendors. We do not sell, ship or handle any products.

Related price comparisons

Peptideals is a price comparison platform for research purposes only. We do not sell, ship, distribute or handle any products. All compounds are for in vitro laboratory research only. Prices and availability change often; always confirm the final price at checkout.