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think again.

CHALLENGE EVERYTHING YOU THINK YOU KNOW ABOUT SEROTONIN.

WATCH THE MOST MIND-BOGGLING EPISODE

THINK AGAIN

S1 EP4 - IS SEROTONIN THE HAPPY CHEMICAL? THINK AGAIN


Details: UMZU co-founder Christopher Walker dives into the science behind the serotonin, and shows you that everyone who thinks Serotonin is "the happy chemical" is gravely mistaken.

How do I get more DOPAMINE? ↓


EPISODE 1: LOW T - Official Trailer...

EPISODE 2: Micronutrients - Official Trailer...

EPISODE 3: Salt - Official Trailer...

EPISODE 4: Serotonin - Official Trailer...

EPISODE 5: Inflammation - Official Trailer...

EPISODE 6: Hormones - Official Trailer...

Watch The Full Episodes Now! →

Christopher Walker

Duke University Neuroscience

Christopher is the first person to graduate from Duke University's neuroscience program in just 3 years.

Studying a range of topics from endocrinology, to behavioral economics, learning & memory, neurobiology, & AI, Christopher's obsession with human nature and biology helped him to heal his own brain tumor naturally without drugs or surgery.


CEO & Co-Founder of UMZU

Disgusted with his negative experiences with the medical establishment, Christopher has spent the past decade creating natural health products and teaching millions of men & women around the world how to use nutrition, strategic supplementation, and physical training to heal their nagging health issues naturally.


Your body is a self-healing organism, you just need to allow it to help itself.

Looking to Get More DOPAMINE?

We've curated our top supplements that help your body produce more dopamine naturally. Try the official Think Again SEROTONIN companion stack for a big discount!

RECOMMENDED FOR YOU!

Mucuna Pruriens

90 capsules per bottle

45 Day Supply

Front view of Redwood supplement bottle
$ 24.99

Savings of:

$3.74

RECOMMENDED FOR YOU!

Cortigon

30 capsules per bottle

30 Day Supply

three bottles of the Redwood supplement
$ 44.99

Savings of:

$5.99

RECOMMENDED FOR YOU!

Think Again SEROTONIN Bundle

This stack contains the Mucuna Pruriens, Cortigon and Floracil50, the perfect trio for producing more dopamine naturally.

30 Day Supply

Ultimate Immunity Stack

Savings of:

$30.49

RECOMMENDED FOR YOU!

Mucuna Pruriens

90 capsules per bottle

45 Day Supply

Front view of Redwood supplement bottle
$ 24.99



easy returns, secure checkout and satisfaction guaranteed icons

RECOMMENDED FOR YOU!

Cortigon

30 capsules per bottle

30 Day Supply

three bottles of the Redwood supplement
$ 44.99



easy returns, secure checkout and satisfaction guaranteed icons

RECOMMENDED FOR YOU!

Think Again SEROTONIN Bundle

This stack contains the Mucuna Pruriens, Cortigon and Floracil50, the perfect trio for producing more dopamine naturally.

30 Day Supply

Male Vitality Stack

Savings of $16.60


easy returns, secure checkout and satisfaction guaranteed icons