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(26 customer reviews)
VIEW MASTER $42.00$142.00



Connect Four’s formulation is targeted for epigenetic neurogenesis and cognitive functioning. This formulation is also known as the Stamets Stack. For more details, please see below.

Influence neurogenesis, healthy neuron transmission and
improving your memory.
Increase brain interactivity and conscious capacity.
Help you develop new ways of thinking.

To learn how to select your dose, click here.
To learn how to select your quantity (aka protocol), click here.

Please note: 75 mg is a very low dose, and typically unnoticeable for most people. If you’re just beginning your microdose journey, we recommend 125 mg.

Sustainably and ethically made in Canada.
Guaranteed to ship within 48-hours of your payment.

Free shipping over $120.

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26 reviews for CONNECT FOUR

  1. Dave Johnston (verified owner)

    If I could give 6 stars, I would. I’ve used Connect Four for about 2 months now and the effects I’ve felt have been life changing. I find my mind is incredibly clear, I’m extremely productive, and I can handle stress so much better. Not to mention the great customer service the people at Sero have given. I will definitely be referring my family and friends and will definitely be a repeat customer.

    Thanks Sero!!

    • S E R O

      Hey Dave! Thank you for taking a moment to share your experience with Connect Four 🙂 we are so glad you’re loving it (enough to share with your family members, as well)! We hope they love their holidays gifts as much as we love making them for you. All our love!

  2. Nicole Latimer (verified owner)

    This is a great product. I feel very present and focussed when I use this blend. awesome!


  3. Alysha (verified owner)

    Life changing. This product has helped me tremendously with depression and anxiety. It takes a few tries to figure out the dosage, but once you know, you know.
    I’m 5”5 125lbs and 250 ( and I mix with connect four) seems to be the magic combo. I have energy of a child!

    • S E R O

      Incredible! Thank you for taking the time to share your experience, it means so much!

  4. JB (verified owner)

    Made me very sick, which is disappointing. I love lite brite 10/10. But everytime I tried these I got super sick for 24 hours

    • S E R O

      We’re really sorry to hear this was your experience. We haven’t had this feedback before, but suspect it’s a sensitivity to Niacin, or B3. We have contacted you via e-mail to discuss your experience further. ❤️

  5. Meg (verified owner)

    This specific blend is so helpful on days I struggle with mental fog. The carefully crafted blend includes Lions Mane which is already something I find enhances my cognitive functioning. I take this also sometimes before bed and it enhances my sleep so I wake up more rested and mentally alert the next day.

    • S E R O

      Amazing, thank you for sharing and love to hear that your cognition and sleep are being supported! Big love.

  6. Oliver (verified owner)

    I’ve used all Sero products. I am a fan of Connect Four for days when I’m creating. I do a lot of story telling in various formats, and I find I can reach burnout or lose focus without the help of a few extra cups of coffee. Connect four has been really helpful keeping me on task. I find I’m able to make a lot of forward progress and don’t dwell on the little hurdles that used to have me reaching for a caffeine break.

    • S E R O

      Thank you Oliver! We love to hear how our products support our community and this is such a great example of that. Appreciate your feedback so much.

  7. Jenny (verified owner)

    This product has changed my life. I was nervous to try it as I had no previous experience with mushrooms, but the effects were subtle and incredibly positive. These made me more contemplative and compassionate. I had more energy, and my focus improved quite a bit. I felt like myself, on my best day. Sero products have really improved my overall experience at my job, and have opened me to new levels of kindness, focus and patience in my life as a whole.

    • S E R O

      Wow, thank you for sharing Jenny. Such a beautiful share of your experience and how Sero has provided some shifts for you. So glad it’s been an ally for you!

  8. Emma (verified owner)

    I’ve been consistently using Sero’s micro-dosing capsules since the pandemic & I am so grateful for this company and their thoughtful formulas <3 Connect Four was one of the last one's I tried & it has become one of my favorites! The addition of Lion's Mane in this formula really benefited me while microdosing for 6 weeks alongside my therapy sessions to help support me while working through old beliefs, past traumas & adopt new ways of thinking that support my best self. I would highly recommend Connect Four as it played a huge role in helping me feel safe & grounded while working through heavy emotions & mental states!

    • S E R O

      Ah yes, integration alongside therapy can be so powerful. Thank you for sharing this, incredible to hear it’s contributing to a feeling of safety and groundedness.

  9. Krista Brenner (verified owner)

    The most amazing customer service EVER!!!!!!!
    The packaging to start is soooo beautiful and refreshing. I cannot wait for this little beauties to become completely legal. I work in end-of-life care and this has helped myself and others that I care for. Happiness is key and these folks have mastered this beautifully!!!!
    Thank you from the very bottom of my heart for your amazing service and products!!!

  10. underthewildmoon (verified owner)

    I have started rotating Connect 4 with LiteBrite and I am noticing big leaps happening early on. Small, but significant revelations come to me on this product, as well as a focused motivation to tackle tasks and a gentle spark of energy and alertness.

    I am taking the same dose as litebrite, however I find this more potent. I get a consistent visual at even the 100g dose (airflow over objects, ie the wind behind a vehicle or breeze through the trees). It is such a neat and consistent result, without impeding daily life, and at a very low dose.

    4 stars simply because I like Litebrite better as a regular dose, though I currently have no plans to discontinue Connect 4 as I am using them together with deep intention and seeing results rapidly.

    Also amazing customer service!

    • S E R O

      Love this! We encourage people to explore stacking blends to amplify their effects. Appreciate you taking the time to share your unique (and beautiful!) journey.

  11. Shereen (verified owner)

    I want everyone to know what a game changer micro dosing is. To have a fresh sense of clarity, calm and inspired energy that settles in, is a very satisfying and productive feeling. As I work to heal the past traumas and the spinning hamster wheel in my mind, I can say with absolute certainty that micro dosing has noticeable improved my overall mood, I’m able to be more focused and I feel like the task at hand becomes more manageable. I wish everyone who is struggling with whatever it is, would reach out to Hey Sero for their support!

    • S E R O

      Thank you Shereen for this beautiful share, and so happy you feel supported by Sero. To echo Shereen, we are here to support anyone looking for tools to support healing <3

  12. Magdalene Sheridan (verified owner)

    Over the last two years, my focus had depleted greatly and I was left feeling uninspired. I began using connect four to support with my brain function and focus. After a couple of 200mg doses, I felt a major improvement. I began to play around with different combinations of all three blends and I am now able to put together different supports for my different needs.
    I was introduced to your product by a friend, and I have to say, I really love your company .The moment I took the dose, I knew how much love and healing was put into the medicine. The hand written notes, encouragement of intention and sharing of wisdom are all beautiful compliments to a fantastic product. Much love.

  13. Linda (verified owner)

    I have started using your product after my son suggested it might help me. It has. It has helped me deal with grief and made me more creative. Thank you.

    • S E R O

      Thank you so much for your review, Linda! We’re grateful to be supporting you. Sending you so much love.

  14. Arthur (verified owner)

    I recently began using the Connect Four 100 mg’s again after not microdosing for a while, and wow, the benefits have returned quickly and with greater impact than I’ve ever noticed. My memory is sharper, verbal acuity more fluid, and my ability to navigate the day-to-day challenges of a typical human life has noticeably improved. Life just feels easier!

    They’ve also helped me to integrate the lessons of some deep plant medicines experiences I recently had in Central America in practical ways. It’s like they’ve added a 10-20% boost at the choice points when I could revert to old habits, or take a different path based on the direction I’d like to take my life. I take especially good care of myself on days that I microdose.

    If you’re looking for a gentle yet impactful addition to your life, I can’t recommend these enough!

    • S E R O

      Your detail and self-awareness is so beautiful to read about, Arthur! Thank you for sharing this. ❤️ We’re grateful to be a part of your life and healing journey.

  15. michelle.2.paquin (verified owner)

    Last Septembre, I had an episode in my personal life that brought me to take antidepressants. I really wanted to stopped at some point and try something more natural. I decreased gradually my pills and after started to use Sero, which I’m in love. I started twice a week with 50mg and now I’m taking 100mg and mixing Connect four with lite brite. For me, it’s a life changing. I’m more focus on my job and focus on the good things in my life! I would definitly recommend it !

    • S E R O

      We’re so honoured to be supporting your growth, Michelle! Thank you for taking the time to leave such a kind review. We’re grateful. ❤️

  16. Adam Martin (verified owner)

    If you’re being called to explore further depths of self discovery, then you’re in the right place.

    SERO has been helpful as a source to guide and provide ample science-backed information to learn more about the benefits of natural medicine, and self & community healing.

    I’ve been stacking Connect Four with Lite Brite for the last 6-8 months, and I’ve experienced such a positive overall change in my relationship with self and others. It’s allowed me to be cognizant of how I’m approaching connections, conflict, and my focus throughout the day.

    I’ve loved having in-depth conversations with countless friends asking me about my journey into microdosing. Thank you Sero, for the hand written notes, the thoughtfulness to add sharing samples, and for your support of everyone on this journey. Xo

    • S E R O

      Thank you again for the kind words, Adam. ❤️❤️❤️ We’re so grateful for you.

  17. Taryn (verified owner)

    I started taking Lite Brite and Connect Four 3 times a week. I started at 50mg and I just recently started taking 100mg. After a few weeks of settling into micro-dosing, I can definitely say it has definitely helped with focus and is also calming my anxieties. The effects sort of play in the background, which doesn’t make it very noticeable right away, but I enjoy that because I would get anxious if I felt “high” every time I took it… I will definitely continue to take Sero!!!

    • S E R O

      We appreciate your detailed review here, Taryn! ❤️ We’re so happy to hear that the combination of Connect Four an Lite Brite are working wonders for you. Thank you again for these kind words!

  18. GS (verified owner)

    I was recommended to try Connect Four by a micro-dosing coach I’m working with and so far am totally in love. It’s given me an incredible focus and a sense of calm throughout my whole body. I’m on my second round from Hey Sero right now and it’s still feeling as lovely as ever. I haven’t yet tried any other Hey Sero formulation yet, but find this one to be so grounding that I’m not even tempted to branch out!

    • S E R O

      This makes us SO happy to hear! ❤️ Wow. Thank you for sharing your experience with us and the community. Grateful to be a part of your growth.

  19. acharmingyou (verified owner)

    Connect Four was one of two items I bought recently. I just took it an hour ago and now feel relaxed, inspired, and could maybe take a nap. I like Connect Four because the Golden Teacher is rad and they could have stopped there, like so many other mushroom companies do, but noooOOooooOO SERO throws in an *amazing* second mushroom, cause they love us and love mushrooms, duh!
    Thanks for always going above and beyond, SERO!

    • S E R O

      Golden Teachers ARE rad. ❤️ We appreciate these kind words and support – and great to know Connect Four is making you feel groovy!

  20. EM (verified owner)

    I just love this stack. I have ordered it three times and it is just such a sweet blend. I really appreciate the 150mg dose option too, because as an experienced microdoser, 100mg is not my calibrated dose. I love Hey Sero!

    • S E R O

      Yay! So happy you love Connect Four, Em. Also happy that we have a dose that suits you well. Thank you so much for your ongoing support! Appreciate you. ❤️

  21. Dawn Mauricio (verified owner)

    This is my second Fall/Winter season I’m using Hey Sero capsules to manage my seasonal affective disorder and it’s making a HUGE difference in the best (and most subtle) of ways! Wow. I can’t say enough good things about it. I microdose 3x a week (Sundays, Mondays, Thursdays) and on each day I take either a Lite Brite, Connect Four, or View Master. This is the first November in years and years I actually have the motivation and energy to do more than just the minimum. I am immensely grateful. Once you find your dosage (which wasn’t too difficult for me given their detailed steps on how to do so), I highly recommend Hey Sero!

    • S E R O

      It’s always so cool to hear how our products are helping the community – thank you for sharing, Dawn! You’re in good company as we hear from many who use microdosing specifically to get them through the darker winter months. We’re grateful for your support and honoured we’re able to support you in return. ❤️

  22. josie.vandervelden (verified owner)

    My husband and I have been trying out all of the different Sero capsules and have really fallen for the Connect Four variety. It find it gives me the opportunity to really consider the stressors in life from a different angle and remove the drama from some of those situations by simplifying them. This new perspective has had a really positive impact in my life, allowing me the opportunity to take a step back and re-connect with my gratitude and let go of the things that aren’t really serving me.

    • S E R O

      This review gave us goosebumps. Woah. We are so, incredibly happy for you Josie! This is what it is ALL ABOUT. Beautiful. Thank you for sharing this and for taking the time to find what works best for you – we’re honoured you and your husband chose Sero to support your growth. All our love and gratitude to you both.

  23. Galahad (verified owner)

    I’ve been using this for the last 8 months and it’s been the best. 100mg is my dose. It’s just subtle enough to be more in tune with my experience (which I would describe as a gentle peace and mindfulness of the beauty that already exists around us), while retaining sharpness and focus to do my usual tasks unimpaired. Love Sero!!!

    • S E R O

      This is so great to read! Working just as it should. Happy for you, Galahad! Thank you for sharing your experience with us and the community. ❤️

  24. Jacqueline J (verified owner)

    My partner and I started using Connect Four, Lite Brite and View Master in rotation since the start of 2021 and the positive impact on our lives have been huge. I see life a bit brighter now. I truly look forward to noticing the beauty in my surroundings during my daily walks and my outlook on life feels more positive and excited, as well as more relaxed and less anxious. I feel more grateful for my relationships and more present in my interactions. I also find an urge to get outside more. These feelings aren’t just here on the days that I use the products. They stay on the days that I don’t as well. I love the formulations and how clean everything is. Discovering this company was a necessary next step for my own growth and journey. I can tell that there is an incredible team behind this company. Not to mention the branding is beautiful! Oh and the Star Bar is such a beautiful treat for the weekends. ♥️ thank you Sero for making such impactful products.

    • S E R O

      “I see life a bit brighter now.” Wow. So awesome – we’ve got heart swells. Thank you for sharing this in-depth review, Jacqueline. We can relate big time to everything here and are grateful to know we’ve been able to support you and your partner. Sending you both a ton of love. ❤️❤️❤️

  25. nmurdick (verified owner)

    I started Connect Four in September, 100 mg three times a week. I’m over 60 and concerned about memory loss, which started when my Mom passed suddenly in 2013. I definitely feel I was seeing benefits – more focused, and better recall. I recently began to focus on my mental health, and man, what a difference! In addition to the the initial benefits, my anxiety level has really come down. We have been through many changes with COVID, some of which I was struggling with. Connect Four has played a huge part in making me a person I enjoy being around. Thanks Sero gang!!

    • S E R O

      Oooof – all the feels, Nancy! ❤️ We are so happy to be in support of your continued growth. Thank you for sharing the many facets of how Connect Four is guiding you, we’re grateful to be along for the ride. All our love. ❤️

  26. Crystal H. (verified owner)

    I started using Connect Four 3 times a week a month ago now to see if it would treat my migraines. My migraines have dropped in frequency by about 80%, and have dropped in intensity about 70%! Thank you Sero!

    • S E R O

      W O W! This makes us so happy to hear. We are grateful our products are making such a big impact on your wellbeing. Sending you a lot of love and continued healing, Crystal!




Many people report landing on 125mg for their ideal dose.  If the immediate effect is too much, we recommend dropping your dose to 75mg, if the immediate effect is entirely unnoticeable, experiment with going up to 250mg.  To learn more about dosing click here


125 mg / 250 mg / 75 mg refers to the amount of magic mushrooms per capsule.


Note: Taking your microdose on an empty stomach will increase its effects.



The most popular microdosing protocol is one capsule, two times per week. For example, Saturday and Tuesday mornings.


While twice per week is common, many find increased benefits when microdosing three (or more) times per week. You have the freedom to pick any schedule that compliments your personal goals and lifestyle. The only rule we suggest is to take at least two days off per week.  To learn more about protocol, click here. 




Always remember, you are your own guide and you are in control. While microdosing, intention setting is something we highly encourage – it really can be a game changer in improving your results.


What are you hoping to feel or accomplish? Where do you want to go? Who do you want to be?


Some examples of an intention could be:


I want to improve my mood and quell anxious thoughts. 

I would like to gain better mental clarity and better focus at work.

I hope to become a more patient and present parent.

I aim to better integrate my therapy sessions.

I want to grow as an individual and open my mind. 


This list is never ending and your intention will be deeply personal.

Additional information


15 Capsules, 30 Capsules, 60 Capsules


125mg, 250mg, 75mg *designed for blending formulas*


Golden Teacher 75mg or 125mg or 250mg (depending on your selection)

Golden Teacher is a magic mushroom strain of psilocybin cubenesis. This beautiful teacher is known to provide guided uplifting experiences.

Lions Mane/Hericium erinaceus (315mg)

Our Lions Mane mushroom extract is a high potency dual-extract of fruiting body and mycelium. As well as the immune-enhancing beta-glucans, this extract has neurotrophic properties leading to Nerve Growth Factor (NGF) stimulation. This increases the growth and repair of neurons.

Niacin/Vitamin B3 (10mg)

Niacin is a specific type of vitamin B3 known to take GABA over the blood brain barrier with the goal of boosting neurogenesis. What’s GABA? Well it’s considered an inhibitory neurotransmitter because it blocks, or inhibits, certain brain signals and decreases activity in your nervous system.

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