
Jonas K.
Lead writer · harm reduction & substance guides
Gothenburg, Sweden

Jonas K.
Lead writer · harm reduction & substance guides
Jonas started writing about substances in 2014 after losing a friend to a counterfeit pill. He has volunteered with The Loop (UK) and DanceSafe-style operations across multiple European festivals, and ran a community testing program in Gothenburg before contributing here. His substance pages are based on years of community feedback, peer-reviewed pharmacology, and field observations — not abstinence-only talking points.
Jonas started writing about substances in 2014 after losing a friend to a counterfeit pill. He has volunteered with The Loop (UK) and DanceSafe-style operations across multiple European festivals, and ran a community testing program in Gothenburg before contributing here. His substance pages are based on years of community feedback, peer-reviewed pharmacology, and field observations — not abstinence-only talking points.
Artigos de Jonas
DIMS Netherlands 2026: how to anonymously test drugs in the Dutch system
Complete guide to the Drug Information and Monitoring System (DIMS). Locations, what they analyse, response times, and what the result actually tells you.
Energy Control 2026: how to send drug samples to Spain's testing service
Complete guide to Energy Control. How to send samples by mail from anywhere in Europe, anonymity, prices, what they analyse, and how to read the results.
Cocaine adulterants in Spain 2026: levamisole, phenacetin, and how to detect them
What cuts actually show up in Spanish cocaine in 2026 according to Energy Control data. Health risks of each adulterant and how to test.
Fentanyl in France 2026: what we know, what we don't, and how to protect yourself
State of fentanyl and nitazene contamination in the French drug market in 2026. Detection data, test strips, naloxone access, and what to do.
Drug checking in Italy 2026: where to actually test substances
A practical map of drug checking in Italy. What exists (not much), how to use reagent kits, and how to mail samples to Energy Control in Spain or DIMS in the Netherlands.
Dangerous MDMA pills in Italy 2026: active warnings and how to test them
MDMA pills currently dangerous in Italy. How to spot the patterns, where to test, and what to do if someone has reactions.
Dutch pill warnings 2026: current MDMA red list and dangerous combinations
The Unity and DIMS red list, which MDMA pills on the Dutch market are extremely overdosed or adulterated, and how to protect yourself.
Drug checking in France 2026: Psychoactif, ASUD, and the French harm-reduction landscape
A guided tour of French harm reduction. Psychoactif, ASUD, Médecins du Monde, where to find reagent kits, and how to mail samples for proper lab analysis.
Melhores kits de reagentes 2026: guia do comprador EU
Comparação dos melhores kits de reagentes disponíveis na Europa em 2026. DanceSafe, EZ Test, Bunk Police e mais.
Melhores lojas de substâncias 2026: como identificar vendedores legítimos
Guia de avaliação de vendedores de substâncias em 2026. Red flags, sinais de confiança, e por que a maioria dos rankings é lixo.
MDMA pela primeira vez: guia completo
Guia de redução de riscos para primeira vez com MDMA. Dosagem, set e setting, testes, descida, e regra dos três meses.
Quanto tempo a cocaína fica no sistema?
Quanto tempo a cocaína e o seu metabolito benzoilecgonina ficam detetáveis. Janelas de deteção e testes.
Quanto tempo a MDMA fica no sistema?
Quanto tempo a MDMA fica detetável na urina, sangue, saliva e cabelo. Janelas de deteção, meia-vida, metabolismo.
Como testar MDMA em casa: guia de kits de reagentes
Guia passo-a-passo para testar MDMA com Marquis, Mecke e Mandelin. Cores de reação, erros comuns, e o que os resultados significam.
Ketamina e álcool: porque esta mistura pode matar
Porque misturar ketamina com álcool é perigoso, a farmacologia da depressão respiratória, riscos comportamentais, e conselhos práticos.
Danos da ketamina na bexiga: prevenção e sinais de alerta
Prevenir danos na bexiga: limites semanais, sintomas precoces de cistite ulcerativa, e quando consultar urologista.
LSD vs psilocibina: comparação honesta
Comparação direta entre LSD e psilocibina. Onset, duração, headspace, body load, dosagem e integração.
Guia da descida de MDMA: cronologia, dicas e recuperação
Guia prático da descida de MDMA. Quanto dura, por que acontece, o que realmente ajuda na recuperação, e o que é treta.
MDMA vs MDA: diferenças chave explicadas
Comparação entre MDMA e MDA (sassafras): efeitos, duração, neurotoxicidade, dosagem e testes de reagentes.
Protocolos de microdosagem de psilocibina: Fadiman e Stamets
Comparação dos protocolos Fadiman e Stamets. Dosagens, horários, investigação e contraindicações.
Receber encomendas anonimamente na Alemanha (2026)
Guia focado em privacidade para receber encomendas na Alemanha. Pseudónimos, Packstation, requisitos de ID.
Uso mais seguro de cocaína: guia de redução de riscos
Redução de riscos para cocaína: higiene nasal, pacing, tamanho da risca, interações perigosas.
The Plug Guide launches: an independent harm-reduction and market-intelligence platform
Why we built it, what it covers, and what it will never become.
Festival survival essentials for MDMA users
Hydration, electrolytes, temperature, sleep, food. The boring stuff that prevents the most common — and most preventable — festival harms.
How to help someone through a difficult psychedelic experience
Calm, evidence-based guidance for sitting with someone who is having a hard time on a psychedelic. What helps, what doesn't, and when to call for help.
How to use a reagent test kit properly
A field guide to reagent testing — what kits actually tell you, what they don't, and how to interpret the colors without fooling yourself.
Avaliações de vendedores por Jonas
- legitO nww.world é confiável? Análise Narcotics Worldwide 2026nww.world
- scamacheterdroguee.com Review 2026 — Is It Legit?acheterdroguee.com
- scamChemical-Dreams.net Review 2026 — Is It Legit?chemical-dreams.net
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