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4-HO-MET Fumarate

Ratings from 22 reviews
- +

What is 4-HO-MET?

4-Hydroxy-N-methyl-N-ethyltryptamine, or 4-HO-MET, is a novel psychedelic substance of the Tryptamine class. 

4-HO-MET is chemically related to psilocin, the active ingredient in psilocybin mushrooms (“magic mushrooms”). It was first synthesized by Alexander Shulgin, who documented it in his 1997 book “TiHKAL” (“Tryptamines I Have Known and Loved”).

For more information on 4-HO-MET, check out our Ultimate Guide.

What are the Effects of 4-HO-MET?

4-HO-MET is often reported to share some similarities with psilocybin (magic mushrooms) and LSD. Though the differences are much more pronounced and easily distinguishable than those between say 1P-LSD and LSD. 4-HO-MET is generally shorter acting and is seen as a “recreational” psychedelic.

Some of the most commonly reported effects of 4-HO-MET are: 

  •     Stimulation
  •     Spontaneous bodily sensations
  •     Colour enhancement
  •     Visual hallucinations – particularly of a geometric nature
  •     Analysis enhancement
  •     Fits of laughter and an increased sense of humor

Potential Side Effects of 4-HO-MET

  •     Nausea
  •     Muscle contractions
  •     Increased heart rate
  •     Excessive yawning
  •     Increased salivation
  •     Temperature regulation suppression
  •     Seizure


4-HO-MET is classified as illegal in:

  •     Germany
  •     Austria
  •     United Kingdom
  •     Sweden
  •     Switzerland

This list is not exhaustive, so do your own research into the legal status in your country before ordering!

Read More

All products are strictly for research purposes only and not for human consumption.

Store in a cool, dry place away from sunlight. Lysergamides and Tryptamines should be kept below 20'c where possible

Product Name: 4-HO-MET fumarate

Other Name(s): 4-hydroxy-N-methyl-N-ethyltryptamine fumarate

IUPAC Name: 3-(2-(ethyl(methyl)amino)ethyl)-1H-indol-4-ol fumarate

CAS: 77872-41-4

Molar Mass: 218.29 g/mol

NMR Measurment Report
NMR Measurement
Report Available
Sample name: AC-17 11-11-2023
Spectrometer: Bruker 600 MHz Solvent: D2O
Expected compound:
4-HO-MET Fumarate
Identified compound:
4-HO-MET Fumarate
Estimated purity:
NMR Analysis Report AC-17 4-HO-MET Fumarate page 2

Click here for the full report.

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Stephan G
5 hours ago
Very good! It couldn't be better. Like bicycles. Highly recommended. Gladly again.
18 hours ago
professionals immediate response to my payment and quick shipping
Rogelio G
1 day ago
Really good products and great customer service. ;)
Yevhenii B
2 days ago
I didn’t leave a review for a long time, because I didn’t know what I was going to work with, I was pleasantly surprised and even too surprised) the store is excellent, fast, clear and transparent)
Richard Z
2 days ago
Everything is great. Meaningful research can be only happening with high quallity chemicals. I have to say, that thanks to this company, my research got a great results. I will be ordering more for sure, we need to uncover a lot of things in our research.
Stephan G
2 days ago
4 days ago
100% trustworthy! Thank you guys!
Sergio R
4 days ago
Escribo mi reseña en español para poder expresarme con total claridad, ya que mi nivel de inglés no es muy alto. Para comenzar el servicio fue perfecto. Tardó en llegarme a Alcalá de Henares (España) tan solo 1 semana desde que realicé el pedido. La experiencia con el producto fantástica. Soy un psiconauta relativamente experto, pero es la primera vez que accedo a este tipo de productos a través de gente profesional. El viaje fue un Océano de sensaciones y percepciones únicos y maravillosos, el cual compartí con mi pareja. Nos adentramos en el bosque mientras el ácido iba haciendo su efecto sobre nosotros, resultando en una conexión extrema y placentera con la naturaleza, así como con mi compañera de viaje. Pienso repetir y volver a confiar en Chemical Collective, además de experimentar con otros productos de su catálogo
Pit F
4 days ago
5 days ago
Amazing research, thank you CC! <3
Andreas T
8 days ago
Fast delivery, impeccable service. I am happy.
8 days ago
Guys really fixed my mistake and send the order fast , so yes i have used them in the past i will use them again!Thank you team!
Vincent B
9 days ago
Very fast and effective, thx you
Roman K
9 days ago
very good resultes
Eduard C
9 days ago
I bought and everything came. Without a lie, this is the best team.
Raúl M
13 days ago
Top material very good products
13 days ago
Supberb service! 10+
Felix G
14 days ago
Every Time a great pleasure, thanks
14 days ago
Excellent shipping. High quality products.

Lots of love
from Jack, Jessica, Gigi and Matt

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19 days ago

A delusion. 50 mg only visual distortion, zero mindfuck. Psychedelic has to affect the psyche. I could think as in a normal state. This i s not a psychedelic. You guys have to add 4-aco-dmt. Well, next time I’ll try that 4-ho-mipt pellets… Perhaps three will do the trick

9 months ago

Really great product and very potent! Has the most beautiful visuals from tryptamine class i’ve tried so far and the euphoria is nice as well. Plus it doesn’t have that serious headspace so it’s perfect for beginners with psychadelics.

1 year ago

Absolutely amazing, visuals were stunning.

1 year ago

Good quality, i recommend to use volumetric solution for make sure of the dose you make take to your plants. 3 or 4 mg can really change the experience.

1 year ago

Very smooth, made my rats very creative

1 year ago

best visuals I’ve seen with a product perfect
little or big dose can change completely your trip that’s why powder is the best solution

1 year ago

People make it seem like it is an easy going chem, but in my case I found it to be “emotionally complex” which can be beautiful but also challenging.

1 year ago

An experiment which cure my depression

1 year ago

The best tryptamine, afetr lsd.
Visuals are more sharp then lsd, but it’s less introspective.

1 year ago

Very effective for visuals with less psychological consequences, meaning lower risk of bad trip.

1 year ago

Excellent tryptamine!

Always have good times with Metocin
Kinda euphoric, bodyhigh quite stimy, lot of laugh, and visual geometry, colors and distortions are very nice!
Headspace very handable in addition, not so tricky to research even in high doses.

2 years ago

Kicks ass. Great visuals, pretty light headspace (no paranoia, confusion or thought loops), decent music appreciation but not the longest legs. Will keep researching 🥳🥳🥳

2 years ago

No joke, this is amazing

2 years ago

Most colorful and gentle psychedelic out there, definitely one of my favorite

2 years ago

The Most beautifully experience i had in years ! Must and stock up ! Mix between LSD, MDMA, shrooms ! And not long last for most 😉 5hours top ! Have fun researching :))

Valentin Bacquet
2 years ago

4-HO-MET is a perfect substance to start with psychedelics, easy going
Be careful with serotoninergics potential interactions

2 years ago

Fascinating substance. Comes very quickly to the peak and holds it for a pleasant time. It is not exhausting and so easy on the headspace that it always kept in control. The visuals I would compare similar to the Lysergs. Would say 70/30 visuals / headspace. Creativity can be pushed a lot. Bodyload is in the absolutely acceptable range. Overall, highly recommended.

2 years ago

4-HO-MET is absolutely amazing it feels incredibly smooth and has the most amazing visuals of all tryptamines for me.
4-HO-MET has less confusion than other psychedelics for me which makes it more recreational while it still can go deep.
4-HO-MET is overall a mostly visual experience which is the appeal for it to me I absolutely recommend everyone who hasn’t done this one yet to give it a try and I recommend you insufflate this substance 😉

Met O'Cin
3 years ago

Perfect in every way

3 years ago

Seems great ! Need more research 🙂

dis play name
3 years ago

Excellent product, shipping faster than anticipated A+

3 years ago

Extremely potent stuff! At low doses you’ll have an extremely light and very fun and beautiful time, at higher doses this chemical is incredibly and amazingly weird


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