Three formulas. Clear distinctions.

Enlighten

Enlighten is PUKO Focus + Drive: phosphatidylserine with guarana extract, a source of caffeine.

Clarify and Sharpen

Clarify and Sharpen name PUKO's two sleep formulas. Ingredient studies do not establish a staged improvement in memory or cognition.

Nutrition daily

Phosphatidylserine is a phospholipid. Its presence in a formula does not establish an effect on memory, focus or everyday performance.

Clear limits

Support wording is not proof of an effect. Read the complete label, study details and limitations before applying an ingredient claim to a product.

Ingredients and Evidence

Compare the ingredient research with the complete product label. These are different questions.

Guarana extract

Guarana extract

Caffeine source

Enlighten

Guarana is a source of caffeine. Studies of specific preparations do not establish slow release or a no-crash effect for Focus + Drive.

Lemon balm

Lemon balm

Botanical extract

Clarify

Unwind + Sleep contains 150 mg of lemon balm extract per serving. Findings from specific preparations are not proof of this formula's effects.

Saffron

Saffron

Botanical extract

Sharpen

Deep Sleep + Recovery contains 40 mg of saffron extract per serving. Results from other extracts and doses should not be transferred directly to this formula.

Ashwagandha (KSM-66)

Ashwagandha (KSM-66)

Branded botanical extract

Clarify

Unwind + Sleep contains 200 mg of KSM-66 ashwagandha extract per serving. Trials of particular preparations and doses did not test this formula.

Tart cherry (Montmorency)

Tart cherry (Montmorency)

Fruit powder

Sharpen

The cited sleep study used tart cherry juice concentrate. Deep Sleep + Recovery uses tart cherry powder, so the preparations and results are not interchangeable.

Magnesium glycinate

Magnesium glycinate

Mineral source

ClarifySharpen

Both sleep formulas provide magnesium as magnesium glycinate chelate. Sleep trial findings are mixed; ingredient research does not establish either formula's effects.

Phosphatidylserine

Phosphatidylserine

Phospholipid

Enlighten

60 mg

Focus + Drive contains 60 mg of phosphatidylserine per serving. Studies at other doses or in specific populations do not establish this formula's effects.

PUKO cognitive support routine
Focus formula

PUKO Focus + Drive

Enlighten: Focus + Drive contains phosphatidylserine and guarana extract. See the label and ingredient evidence before choosing your routine.

Evening formula

PUKO Unwind + Sleep

Clarify: Unwind + Sleep combines magnesium, KSM-66 ashwagandha extract and lemon balm extract. It is a separate sleep formula.

Recovery formula

PUKO Deep Sleep + Recovery

Sharpen: Deep Sleep + Recovery combines magnesium, tart cherry powder and saffron extract, with no added melatonin.

Your routine

Observe Your Routine

Record your routine and any effects you notice. These observations are not a clinical test or a guaranteed timeline.

Ingredient Studies and Their Limits

Prof. Crystal Haskell-Ramsay

Prof. Crystal Haskell-Ramsay

Professor of Biological Psychology

Guarana Extract

Research has examined guarana in cognitive tasks, with results that differ by outcome. These ingredient studies did not test Focus + Drive.

Akito Kato-Kataoka

Akito Kato-Kataoka

Lead author

Phosphatidylserine (PS)

Research on phosphatidylserine has examined particular doses and populations. It does not establish the effect of Focus + Drive's 60 mg serving.

Prof. Deepak Langade

Prof. Deepak Langade

Professor & Head of Pharmacology

KSM-66® Ashwagandha

Research has examined specific ashwagandha preparations for selected outcomes. Preparation, dose, study population and duration matter when interpreting the findings.

Prof. Glyn Howatson

Prof. Glyn Howatson

Clinical research team

Tart Cherry

Howatson and colleagues studied tart cherry juice concentrate. That trial did not test Deep Sleep + Recovery or its 40 mg powder serving.

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

Specific claims. Clear limits.

Yes. Enlighten is PUKO Focus + Drive, which contains guarana, a source of caffeine. The extract amount is not the caffeine amount; this formula is not caffeine-free.

Enlighten, Clarify and Sharpen are brand labels. The ingredient studies shown here do not establish a week-by-week or month-by-month progression for the PUKO formulas. Responses vary; start with the product labels and study limitations.

Record your routine and any effects you notice. Personal observations do not establish efficacy, causation or a guaranteed timeline.

PUKO's product names and support language do not establish clinical benefits. The research here concerns ingredients, not the finished formulas. PUKO products are not intended to diagnose, treat, cure or prevent disease.