Enlighten
Enlighten is PUKO Focus + Drive: phosphatidylserine with guarana extract, a source of caffeine.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.
Free shipping on all items! | 7-day returns on unopened, sealed items.

Enlighten is PUKO Focus + Drive: phosphatidylserine with guarana extract, a source of caffeine.
Clarify and Sharpen name PUKO's two sleep formulas. Ingredient studies do not establish a staged improvement in memory or cognition.
Phosphatidylserine is a phospholipid. Its presence in a formula does not establish an effect on memory, focus or everyday performance.
Support wording is not proof of an effect. Read the complete label, study details and limitations before applying an ingredient claim to a product.
Compare the ingredient research with the complete product label. These are different questions.

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

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

Botanical extract
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.

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

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

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

Phospholipid
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.

Enlighten: Focus + Drive contains phosphatidylserine and guarana extract. See the label and ingredient evidence before choosing your routine.
Clarify: Unwind + Sleep combines magnesium, KSM-66 ashwagandha extract and lemon balm extract. It is a separate sleep formula.
Sharpen: Deep Sleep + Recovery combines magnesium, tart cherry powder and saffron extract, with no added melatonin.
Record your routine and any effects you notice. These observations are not a clinical test or a guaranteed timeline.

Prof. Crystal Haskell-Ramsay
Professor of Biological Psychology
Research has examined guarana in cognitive tasks, with results that differ by outcome. These ingredient studies did not test Focus + Drive.

Akito Kato-Kataoka
Lead author
Research on phosphatidylserine has examined particular doses and populations. It does not establish the effect of Focus + Drive's 60 mg serving.
Read the clinical study
Kato-Kataoka et al., J. Clin. Biochem. Nutr. (2010) ↗
Prof. Deepak Langade
Professor & Head of Pharmacology
Research has examined specific ashwagandha preparations for selected outcomes. Preparation, dose, study population and duration matter when interpreting the findings.

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