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Evidence-based information for safer choices
Substance Profiles
Alcohol
depressant
Cannabis
depressant, stimulant
MDMA
stimulant, psychedelic
Cocaine
stimulant
LSD
psychedelic
GHB
depressant
Ketamine
dissociative
Amphetamine
stimulant
Heroin
opioid, depressant
Mephedrone
stimulant, research-chemical
Poppers (Alkyl Nitrites)
depressant
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Harm Reduction Guides
Safer Use Basics
Testing, dosing, hydration, buddy systems — the fundamentals of harm reduction
Chemsex Safety
Practical harm reduction for sex under the influence
GHB/GBL Safety
GHB has one of the narrowest safety margins — know the risks
Overdose Recognition
Know the signs by substance class and what to do
Mixing Basics
Why mixing substances multiplies risk, and the science behind it
Looking After a Friend
What to do if someone you're with is in trouble