NutraBio | CAFFPlus | 60 Servings

NutraBio CAFFPlus is not trying to be an all-in-one pre-workout. It is a precision stimulant formula built around a very specific objective: deliver reliable energy and sharper focus without the jagged onset, anxiety, and hard crash that make many caffeine products feel good for 20 minutes and unpleasant for the next several hours. The strategy is simple and smart: pair 150mg total caffeine from two distinct sources with 200mg L-theanine in a fully disclosed capsule.

The first major active is TheaPure™ L-theanine at 200mg. That dose matters. In human research, 200mg has been shown to reduce psychological and physiological stress responses under acute stress, including lowering heart rate and salivary immunoglobulin A responses in healthy adults. Mechanistically, L-theanine is valued for promoting a calmer, more controlled state of alertness rather than sedation. In practical terms, it takes the sharp edges off stimulants. You still feel switched on, but with less tension, less internal noise, and better task stability. TheaPure™ is a branded, high-purity theanine source, which matters in a minimalist formula like this because there is nowhere to hide poor raw material quality.

Next is Infinergy™ di-caffeine malate at 100mg, yielding 75mg caffeine. Di-caffeine malate is a bonded form of caffeine and malic acid often used to create a smoother and more sustained stimulant curve than relying on a single hit of anhydrous-style caffeine alone. What you notice is less of a slam and more of a glide: cleaner onset, steadier energy, and a more gradual taper. At 75mg yielded caffeine, it contributes meaningful stimulation without overpowering the formula.

The third active is PurCaf™ Organic Caffeine at 79mg, yielding another 75mg caffeine. This gives CAFFPlus its faster front-end effect. PurCaf™ is a branded organic caffeine source from green coffee bean, and in this context it serves an important functional role: it gets you mentally online sooner while Infinergy™ extends the experience. Together they total 79mg caffeine per capsule, which places this in the moderate-stim category. That is enough for noticeable alertness, reduced perceived fatigue, and improved training or work-session readiness without automatically pushing users into high-stim territory. The broader caffeine literature is strong, with systematic reviews and meta-analyses consistently supporting caffeine’s ability to improve endurance performance, time to exhaustion, and perception of effort.

The real intelligence of this formula is the caffeine-theanine synergy. This is one of the best-supported pairings in all of sports nutrition and nootropics. Research on combined L-theanine and caffeine shows improved attention-task speed and accuracy along with reduced susceptibility to distraction compared with placebo. That is exactly the experience this formula is built to create: not just more energy, but more usable energy.

From a transparency standpoint, CAFFPlus scores very well. There are no proprietary blends. Every active ingredient is disclosed with its exact dose and yielded caffeine amount. In a category full of vague “energy matrix” labels, that matters.

What to expect: on day 1, most users feel a smooth lift in alertness within roughly 20-40 minutes, with cleaner focus than standard caffeine capsules and less jitter potential. Over 2-4 weeks, the formula does not “build” like creatine or beta-alanine, but you learn its rhythm. It becomes a dependable tool for training, work, travel, and productivity because the experience is consistent: calm energy in, cleaner output out.

How to Use Nutra Bio | CAFFPlus | (60 servings)