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N
Stimulants

N-Isopropylbenzylamine (N-Iso)

Street names: N-ISO, Iso, The meth mimic

N-Isopropylbenzylamine (N-Iso) — Clear/white crystals nearly identical to methamphetamine (that's the point)

What it does

  • Essentially inactive — the disappointment is the effect
  • Sold as meth, sometimes with a little real meth on top ('twisted dope')

Key risks

  • THE SCAM: N-iso is the most common meth adulterant — users pay meth prices for inert crystals
  • Identifying: N-iso is harder, doesn't 'crack back' the same, bitter-numb difference (subtle)
  • Cuts reduce effective dose → users take more → when real meth appears, overdose
  • Harm reduction: test kits, start small with any new batch

Overdose signs

  • (As adulterant) — none directly; the danger is the unknown real-meth dose in the same bag

📋Quick facts

Also known asN-ISO, Iso, The meth mimic
CategoryStimulants
Schedule / classNot a drug — cutting agent; 'meth-like' appearance
AppearanceClear/white crystals nearly identical to methamphetamine (that's the point)
Street priceSold AS meth — $20–$100/g
Legal statusNot scheduled as a drug; sale as meth is fraud/prosecuted as such
Last updated2026-09-18
Sources: NIDA, EMCDDA, drugchecking services

Category comparison — Stimulants

SubstanceClassTop risksStreet price
N-Isopropylbenzylamine (N-Iso)Not a drug — cutting agent; 'meth-like' appearanceTHE SCAM: N-iso is the most common meth adulterant — users pay meth prices for inert crystals; Identifying: N-iso is harder, doesn't 'crack back' the same, bitter-numb difference (subtle)Sold AS meth — $20–$100/g
MethamphetamineSchedule IIAddiction — among the most addictive drugs known; Meth mouth, skin sores, psychosis~$20–$100 per gram
Speed (amphetamine paste)Schedule IIInsomnia, anxiety, paranoia; Heart strain and overheating~$10–$40 per gram
Street prices are regional estimates. Potency and cuts vary constantly.

?Frequently asked questions

What does N-Isopropylbenzylamine (N-Iso) look like?

Clear/white crystals nearly identical to methamphetamine (that's the point)

What are the signs of a N-Isopropylbenzylamine (N-Iso) overdose?

(As adulterant) — none directly; the danger is the unknown real-meth dose in the same bag Call emergency services immediately.

How addictive is it?

THE SCAM: N-iso is the most common meth adulterant — users pay meth prices for inert crystals Dependence can develop with regular use.

🔗Sources & further reading

Facts on this page are compiled from these primary sources. External links open in a new tab.