Formulas built the way I would build them for myself.
Version 2.0Single-batch runChangelog
Clean stimulant · enfinity® paraxanthine
Jason's replacement for coffee: 200 mg enfinity® paraxanthine with 100 mg Suntheanine® — alert, not jittery, and gone by evening.
$49 $42/mo on subscription · from $37/unit on a 3-pack subscription
No payment is collected today — pre-orders are saved to your list and confirmed by email. Checkout opens January 1, 2027. How pricing works.
No proprietary blends. Each line below is on the Supplement Facts panel at exactly this amount. Tier is our appraisal of the human evidence; sources are linked.
Evidence. Acute crossover RCT (n=13, 200 mg): improved attention, reaction time, memory vs placebo; dose-response 50/100/200 mg; 7-day safety trial.
Cautions. Stimulant — kept as its own standalone formula; avoid late-day use; not with other stimulants.
pmc.ncbi.nlm.nih.gov/articles/PMC8708375/mdpi.com/2072-6643/13/11/3980/pdf
Evidence. Systematic review of 13 trials (n=550, 50–900 mg): improved sleep-related outcomes; alpha-wave and attention RCTs at 50–200 mg.
Cautions. None significant.
tandfonline.com/doi/full/10.1080/1028415X…suntheanine.com/wp-content/uploads/2013/0…
Serving size 1 capsule
Servings per container 30
| Amount per serving | % DV | |
|---|---|---|
| enfinity® paraxanthine | 200 mg | † |
| Suntheanine® L-theanine | 100 mg | † |
† Daily Value not established. Percent Daily Values are based on a 2,000-calorie diet.
Other ingredients: plant-based capsule (pullulan), sunflower lecithin (liposomal carrier), rice hull concentrate.
Directions: Take 1 capsule in the morning or early afternoon. Do not exceed 1 capsule per day. Avoid other stimulants.
*Formulations are unofficial — Version 2.0 specifications are being finalized ahead of the first single-batch run and may change before release. Supplement Facts shown are the current design targets, not a finished label.
Matte black label on amber glass with metallic blue edges. Final artwork is proofed before the first run.
| One-time | |
| Subscribe monthly | $42 |
| 3-pack | $39/unit |
| 3-pack subscription | $37/unit |
Stack it with up to four other formulas for 5–25% more off every rung. Build a stack →
Buy a 3-pack (one-time or subscription), complete four short surveys over 90 days, and earn back 25% of what you paid as store credit — or 40% as subscription credit. Self-reported, published in aggregate, never called a clinical trial.
How it worksVersion 2.0 is made once. When this batch sells out it is gone; the next version is announced before it is made. If this formula is working for you, tell us to keep it — and buy a few extra bottles just in case.
Read the changelogStimulants are kept out of every other NexGen formula so you decide when (and whether) to use one. Paraxanthine is caffeine's main metabolite with a shorter half-life and no demethylation to theophylline.
Every NEX-GEN formula starts at Version 2.0 and later versions may be announced each quarter. Each run is a single batch — once it sells out, that exact version is retired. If you love a version, tell us to keep it, and buy a few extra bottles just in case.
Pre-order adds the item to your saved cart and emails a confirmation that your bottles are reserved. No payment is taken now; you will be prompted to complete checkout when the Version 2.0 batch releases in early 2027.
Version 2.0 ships early 2027 in the order pre-orders were placed. Pre-orders open January 1, 2027; until then you can save it to your list at no cost.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Nothing on this site is medical advice — it is educational "what I would do if I were you" guidance from an executive health coach. Talk with your clinician before starting any supplement, especially if you take medication, are pregnant or nursing, or have a medical condition.
Memory · focus · neuroplasticity (stimulant-free)
$129 $110/mo on subscription · from $97/unit on a 3-pack subscription
Motivation · drive · stress resilience
$59 $50/mo on subscription · from $44/unit on a 3-pack subscription
Methylated Bs · liposomal C · cocoa flavanols · electrolytes · fulvic
$99 $84/mo on subscription · from $74/unit on a 3-pack subscription
A one-hour, one-on-one session with Jason Johns that ends with your own customized edition of The Ultimate Handbook of Health: detailed, personalized protocols including peptides, bioregulators, and highly specific supplement timing and an interactions checker — a stack designed for your biology and taken when it can actually be absorbed.
