Revitalize your mind in stages.

Energy first

Enlighten supports the mental energy, focus, and clear thinking you can use today.†

Recovery next

Clarify and Sharpen add sleep-based recovery support, helping the brain rest and restore, for long-term clarity, memory, and a sharper mind.†

Nutrition daily

Phosphatidylserine supports brain-cell membrane health as part of a daily cognitive routine.†

Clear limits

Every claim stays in support language. No promises to make you smarter, fix brain fog, or cure sleep issues.

The Actives Behind the Feeling

A closer look at the ingredients that shape how PUKO feels throughout your day.

Guarana extract

Guarana extract

Supports alertness

Enlighten

Caffeine held in natural tannins that release it slowly, for steadier energy. Studied for supporting alertness and reaction time.†

Lemon balm

Lemon balm

Supports calm mood

Clarify

A calming herb used for centuries. Placebo-controlled studies looked at support for calmness and steadier mood under everyday mental demand.†

Saffron

Saffron

Supports mood & sleep

Sharpen

A flower-stigma extract. Randomized studies around 28 mg daily looked at support for mood and sleep quality in healthy adults.†

Ashwagandha (KSM-66)

Ashwagandha (KSM-66)

Supports stress resilience

Clarify

A standardized root extract. Randomized trials around 600 mg daily studied support for a calmer stress response and cortisol already within normal range.†

Tart cherry (Montmorency)

Tart cherry (Montmorency)

Supports restful sleep

Sharpen

One of the few foods with naturally occurring melatonin. Studied for supporting sleep time and quality, when the day consolidates to memory.†

Magnesium glycinate

Magnesium glycinate

Supports relaxation & sleep

ClarifySharpen

Magnesium bound to glycine for gentle absorption. Studied for supporting relaxation and sleep quality, especially when intake runs low.†

Phosphatidylserine

Phosphatidylserine

Supports memory & learning

Enlighten

60 mg

A phospholipid concentrated in brain-cell membranes. Studied for supporting memory, learning, and focus as part of a daily routine.†

PUKO cognitive support routine
Week 1

Usable focus starts here

Enlighten supports mental energy, alertness, and clear thinking for the work in front of you, while phosphatidylserine adds daily brain-cell membrane nutrition.†

Month 1

A steadier recovery baseline

Clarify pairs KSM-66 ashwagandha with magnesium and lemon balm to support relaxation and easier, restful sleep, for a calmer, clearer mind over time.†

Month 3

Sharpen gets a better recovery window

Sharpen supports deeper, restorative sleep and overnight recovery, for memory and a sharper mind over time.†

Month 6

A cognitive base you can track

The full PUKO system links output, recovery, and a sharper mind into a repeatable routine. Track the shift through focus window, afternoon steadiness, calm baseline, restful sleep, and recall confidence.

Studied actives. Honest claims.

Prof. Crystal Haskell-Ramsay

Prof. Crystal Haskell-Ramsay

Professor of Biological Psychology

Guarana Extract

Guarana is clinically studied to support alertness, response speed, and mental performance during demanding cognitive tasks.

Learn more

Read the clinical study

Haskell et al., J. Psychopharmacol. (2007) Hack et al., Nutrients (2023) — meta-analysis
Akito Kato-Kataoka

Akito Kato-Kataoka

Lead author

Phosphatidylserine (PS)

Phosphatidylserine is a clinically studied brain phospholipid that helps support memory, recall, and everyday cognitive performance.

Learn more

Read the clinical study

Kato-Kataoka et al., J. Clin. Biochem. Nutr. (2010)
Prof. Deepak Langade

Prof. Deepak Langade

Professor & Head of Pharmacology

KSM-66® Ashwagandha Root

KSM-66® ashwagandha root extract is clinically studied to support stress resilience, mental energy, mood balance, and sleep quality.

Learn more

Read the clinical study

Langade et al., Cureus (2019) — insomnia & anxiety Langade et al. (2024) — cognition, energy & mood
Prof. Glyn Howatson

Prof. Glyn Howatson

Clinical research team

Tart Cherry

Tart cherry is naturally rich in sleep-supportive polyphenols and has been clinically studied to support melatonin levels, sleep duration, and sleep efficiency.

Learn more

Read the clinical study

Effect of tart cherry juice on melatonin levels and enhanced sleep quality.

Studies shown are on individual ingredients, not PUKO products. Results may vary. Researchers do not endorse PUKO. FDA disclaimer applies.

Specific claims. Clear limits.

No. Enlighten is the first stage, but the point is not a stronger hit. PUKO is built to support usable mental energy first, then recovery and recall support over time.†

Think short-term, mid-term, and long-term. Enlighten supports the work in front of you. Clarify supports relaxation and recovery. Sharpen supports restful sleep as a recovery window for recall support.†

Use simple self-checks: focus window, afternoon steadiness, calm baseline, restful sleep, and recall confidence. These are observation prompts, not guaranteed results.

PUKO uses supplement support language: supports mental energy, focus, cognitive function, relaxation, restful sleep, and recall as part of a healthy routine. It is not intended to diagnose, treat, cure, or prevent disease.