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Psilocybe hollandia

Psilocybe hollandia
As its name suggests, Psilocybe hollandia is a new truffle developed and grown in the Netherlands by the country’s leading truffle producer. Nearly twice as strong as the other varieties, it’s already popular with experienced shroomers looking for a longer trip with more intense visuals (which hollandia delivers more reliably).

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Product status: In stock

€ 17.99 tax incl.

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Weight: 15 grams € 17.99 In stock
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Though a tad more expensive, the hollandia does offer more bang for your buck – you can easily squeeze two trips from one 15 gram pack (in fact it’s recommended that all but the most experienced trippers stick to a half pack).

The taste has also been improved with a special growing method. The hollandia still has the nutty truffle flavour but without the sourness of other varieties.


As a rule, all truffles have a high level of psilocybin in them, so the effects of all of them are broadly similar. But P. Hollandia is the exception. With twice the level of psilocybin, its visual effects are more colourful and overwhelming than any other variety, and the trip will be longer than the usual 4-6 hours (but not double).

Effects will be felt within 15-45 minutes of consumption, depending on how many you took and how long since your last meal. A typical trip consists of a ‘coming up’ period, an experience plateau, followed by a gradual descent back to normal consensus reality.

The effects include: outbursts of hilarity, changed colour and sound perception, introspective thoughts, feelings of universal connectedness, waves of energy coursing through the body, vivid visions with eyes closed.


The active ingredient in truffles is psilocybin, a triptamine similar in structure to our bodies’ naturally produced neurotransmitter, DMT. There are no poisonous byproducts or metabolites created – psilocybin is ridiculously non-toxic - so no hangover. But you may look at life a little differently the next day!


Hollandia are sold in a duo-pack of 2 x 7.5 grams so you can easily split the 15 grams of truffle. Although this weight may be reduced as water is lost during shipping & storage, the effects are the same.

Truffles are sold fresh so you need to keep them in the refrigerator until you use them. Take 7.5 grams for a normal trip and 10 - 15 grams for a strong trip. Try to eat them raw on an empty stomach for best results, or crumble then and boil them gently for 20 minutes to make a tea, which can be sweetened (with honey, not sugar).


Avoid using when pregnant or nursing, when depressed, on medication or in combination with stimulants or alcohol. Also avoid driving motorized vehicles. Not suitable for under-18s. If it’s your first time on psilocybin it’s a good idea to have a friend with experience to be with you in case you feel nauseous or anxious. Do not repeat a trip for at least a week – not because it’s dangerous but because it’s a waste of money! The body rapidly builds up a tolerance for psilocybin so taking a fresh dose too soon after the last one will have no effect.

*Can be stored for a maximum of two months in the fridge. After you open the pack they can only be kept for two days.


    By Liam W. on 25/Nov/2015 :

    Title : Amazing all round!
    Comment : The service was amazing, received in the UK within 6 days of ordering. The experience was even better, was my first experience with anything like this and it really was worth it. I did eat ~14g though but will definitely be buying again!

    By Vincenzo A. on 18/Nov/2015 :

    Title : Ein wunderschönder Lehrer zum Verstand erweitern.
    Comment : Da ich an meinem ersten von bisher 4 Trips mit einer höheren Dosierung angefangen habe (15g), konnte ich dinge fühlen und erfahren die neu für mich gewesen sind. Wie zB das der Tot nicht echt ist, genauso wie Probleme usw. E=MC² etabliert ja das Energie weder Kreiert noch Zerstört werden kann. Das heist für mich das Energy schon immer da war und immer da sein wird. Sobald jemand sein verstand durch eine neue Erfahrung ausgedehnt hat, kann dieser nicht mehr in die alte Dimension zurück. Man kann nur weiter machen. Darum habe ich vom ersten bis zum vierten Trip immer 5g mehr als Ritual zu mir genommen und auch damit gearbeitet. Für den 5ten würde ich jedoch 45g zu mir nehmen um das was ich bei davorigen Trip gelernt habe um zu setzen. Diese Realität ist nur eine Illusion, nichts davon ist echt. Es gibt also somit auch keine grenzen. Es sei denn du selbst setzt dir welche. Arbeitet mit und Lernt von Trüffeln mein Freunde. Das ist nicht irgendeine Substanz die man sich schmeißt um dicht zu sein. Es ist viel mehr als nur eine Substanz, es ist mehr ein Lehrer der dir von mal zu mal die Wahrheit näher bringt. Ein großen Dank an das Zamnesia Team. Danke das es euch gibt und mir damit die möglichkeit gibt meinen verstand zu erweitern. 8R34K FR33

    By habbabab M. on 16/Nov/2015 :

    Title : Viajecito
    Comment : Vaya viajecito! Al poco de comerlas estaba tan subido que no podia parar de reir. Totalmente recomendables! Una experiencia única e inigualable con tus amig@s

    By PEDRO W. on 04/Nov/2015 :

    Title : Amazing
    Comment : I had a very nice trip! If you have already tried magic truffles, you will see that this kind can provide you a very special moment with 1 bag.

    By Zdravko T. :

    The customer has rated the product but has not posted a review, or the review is pending moderation

    By Paul H. :

    The customer has rated the product but has not posted a review, or the review is pending moderation

    By Ali M. on 28/Oct/2015 :

    Title : So Funny
    Comment : This is one of the best I've tried yet. My girl friend and I did laugh a hell out of it. I had visuals with closed eyes. created a wonderful night thanks to Zamnesia. I order more soon. %100 pure

    By Ilyasse B. on 27/Oct/2015 :

    Title : Boem
    Comment : Geweldige ervaring, jammer genoeg had iemand een bad trip. Het was zijn eerste keer en had het een beetje onderschat. We hebben hem maar 5 gram gegeven zoals aangegeven werd op het foldertje bij de bestelling. Uiteindelijk is hij eruitgekomen en was het nog leuk.

    By Peter B. on 12/Oct/2015 :

    Title : Subtiele ervaring
    Comment : Mijn eerste ervaring met enige vorm van geestverruimende middelen. Begonnen met inname van 5 gram en opgebouwd na een uurtje tot 15 gram. Zeer liefdevolle ervaring. Geen misselijkheid en de truffels hebben een goede smaak.

    By Jonathan K. on 09/Oct/2015 :

    Title : Hollandia
    Comment : I seem to have a high tolerance to the truffles so the trip doesnt last as long as prefer but these were definitely the best.. Will be trying some more strong ones soon.. Had no problem with payment, communication or delivery. Zamnesia are great thans

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From Steve123 | 2014-04-06 17:34:00

Wie lange halten sich die Trüffel in der Verpackung sodass sie noch frisch sind? Beispiel: Wenn eine Lieferung 3-5 Tage dauert, wie lange danach kann man sie noch mit gutem Gewissen verzehren?


We specialize in shipping throughout Europe. Please rest assured that our truffles are able to withstand the elements that transit involves. If you have any doubts however, please contact our Customer Service with a photo of your packet: All our Truffles are fresh and vacuum packed in quantities of 15 grams. Unopened, they can be stored 2-3 months in a cool and dark place (a refrigerator is perfect). Do not freeze! Freezing the product will damage the produce. Once opened though, they can only be stored for a few more days.

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