Welcome
Smart stuff, honestly explained.
Altered State is the smart shop on the Papengracht in Leiden. From rolling papers to vaporizers and from herbs to incense: it is all here under one roof, and the person behind the counter knows what it is and how it works. Ask us anything, that is what we are here for.
Shop
Six departments, one shop
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Headshop
Pipes & bongs, rolling papers, filters, grinders and everything that goes with them.
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Smartshop
Kratom, herbs, extracts and rapé.
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Healthshop
Sport nutrition, healthy shrooms, recovery, sleep and energy.
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Seedshop
Feminized and autoflowers from Royal Queen Seeds, Vision Seeds, Hempire and others.
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Vaporizers
Storz & Bickel, Puffco, Pax, DaVinci and more.
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Spirituality
Incense, palo santo and ceremonial cacao.
Our story
Curiosity is a good place to start.
Most people walk in with a question. Which vaporizer suits me? What is rapé, exactly? How do you pick a grinder that lasts? We tell you what we know, and we say so when we don't. You won't hear miracle stories here, but you will meet people who know what is on the shelves.
Your mind is your own. We make sure you know what you are buying.
The shop
Visit us in Leiden
You will find us right in the centre of Leiden. Come in to look around and compare; a lot of what we sell only makes sense once you hold it in your hands. We only sell in the shop, so you cannot order through this site.
Papengracht 32311 TV Leiden
Opening hours
| Monday | 13:00 – 18:00 |
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| Tuesday | 13:00 – 18:00 |
| Wednesday | 13:00 – 18:00 |
| Thursday | 13:00 – 18:00 |
| Friday | 13:00 – 18:00 |
| Saturday | 13:00 – 18:00 |
| Sunday | Closed |
Journal
From the shop
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Which grinder suits you?
Two parts or four, metal or wood. What to look for when you want one that lasts.
Read more -
How to choose a vaporizer
Portable or at home, herbs or concentrates. Three questions get you most of the way there.
Read more -
What is palo santo?
Holy wood from South America, with a scent you won't forget quickly. Where it comes from and how to burn it.
Read more
Contact
Ask us
Looking for something that is not listed, or want to know if we have it in stock? Send us a message and we will get back to you.