NuBoost’s original formula was a compact combination of caffeine, theanine and black-pepper extract. That makes its ingredient structure easier to inspect than a large proprietary blend, but it does not establish a uniquely smooth or side-effect-free stimulant effect.
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Formula recorded in the original review
The following table is retained as an archival record, not a verified current label or dosing recommendation. Match a present bottle to its own label; a changed or unavailable source does not establish that a product is discontinued.
NuBoost Ingredients | |
| Ingredients | Amount Per Serving |
| L-Theanine | 200 mg |
| Natural Caffeine Anhydrous (from Arabica Bean) | 100 mg |
| BioPerine® Black Pepper Extract (Piper Nigrum Fruit) (Standardized to 95% Piperine) | 2.5 mg |
What distinguishes the recorded formula
The archived serving lists 100 mg caffeine and 200 mg theanine, plus 2.5 mg BioPerine. The two-to-one theanine-to-caffeine ratio describes composition, not a guarantee that anxiety, sleep disruption or a crash will be prevented.
Black-pepper extract is presented as an absorption aid in many products. Its presence does not demonstrate stronger cognitive benefits for this particular combination. Absorption claims also need to be separated from interaction questions.
What “works” would mean here
Caffeine can alter alertness; that is different from improved memory or a uniquely effective finished formula. The original review overstated how confidently the combination could be expected to improve productivity. There is no verified hands-on trial behind this revised assessment.
For an adult comparing a caffeine product, the disclosed caffeine amount is useful. Count coffee, tea, energy drinks and other supplements too. The capsule format makes it easy to overlook the total.
Buying decision
Current manufacturer formula, price and stock were not confirmed, so the table remains historical. If considering an offer, verify serving size, the actual caffeine amount, seller identity and expiry. Compare with a simpler caffeine source on cost per equivalent serving rather than paying automatically for an absorption claim.
The formula’s transparency is a practical advantage in the archived record. It is not evidence that NuBoost is suitable for every user or a replacement for sleep. See focus and alertness for the outcome distinction.
