SPRINT is the second in the flagship line of nootropics from Nootrobox, a much-publicized Silicon Valley startup in the nootropic space. In our review of their RISE daily nootropic, we noted the company had started their initial product offerings with a stack of well-researched, common nootropic ingredients in a research-supported formulation.
Meant as an “as you need it” energy boost to compliment RISE, SPRINT takes a caffeine-theanine pairing (which we’ve seen as a combination in larger stakes and as a potent standalone in supplements like Smart Caffeine) and adds some ingredients we find much less common on the nootropic market. Are these additions Nootrobox’s true secret sauce? Read on for our full SPRINT review.
Vitamin B12 (methylcobalamin) — 60 mcg
Vitamin B12 is a water-soluble essential vitamin directly related to brain health, including memory and actual brain mass. A number of studies have noted positive associations between vitamin B12 intake and memory tests.
Vitamin B6 — 20 mg
Vitamin B6 is a water-soluble essential vitamin, involved in the production of neurotransmitters. Studies show that when taken in conjunction with Magnesium, B6 improved school attention in children diagnosed with ADHD.
L-Theanine — 200 mg
L-Theanine is an amino acid known to support a calm mood without inducing sleepiness. When used in conjunction with caffeine, it has been observed to reduce error rates while performing tasks.
Glucuronolactone — 185 mg
A metabolite of glucose, glucuronolactone is a common ingredient in many energy drinks, largely based off claims it can help “detoxify” the body and liver. However, there is very little research regarding the effects of the compound within the human body, and any performance or “detoxifying” ties are in need of significantly more research. Current research suggests mild — if any — benefits to cognition or energy.
Inositol — 185 mg
Most of this compound’s neurological properties — including reduced anxiety and mood regulation — are relatively mild and tied to much higher dosages than are present in this supplement (normally starting around 6 grams, over 30x what’s found in SPRINT).
Caffeine — 100 mg
Caffeine is a stimulant acting on the central nervous system. One of the better-researched mental and physical performance enhancers, caffeine is proven to have acute effects on cognitive function and mood when used in conjunction with L-Theanine.
Other Ingredients: Vegetable hydroxypropyl, methylcellulose capsule, rice flour, calcium carbonate, silicon dioxide.
We suggest one capsule with a tall glass of water. Lasts 4-6 hours. If RISE is your daily nootropic i.e. your daily mental vitamin, SPRINT is your nootropic to get your mental state to high gear.
“After trying SPRINT a few times, I compared it on alternating days with a straight-up caffeine and l-theanine pairing, and I couldn’t tell much difference. It is handy, and as far as these ingredients go, it’s a legit and transparent combination.” — Alexandra
“I liked this supplement overall. I do appreciate that they list exact ingredient amounts, especially since I sometimes take nootropics with coffee and it’s good to know how much caffeine I’m getting. I’m not sure the boost lasts the 4-6 hours Nootrobox claims it does, but it did help me power through some difficult work periods.” — Ming
Read what happened when we stacked SPRINT with RISE, another Nootrobox nootropic.
“Maybe it’s because I’m less enthusiastic about caffeine than some others, maybe it’s because the supplement didn’t work well with my physiology, but I didn’t feel particularly clear or focused on this above and beyond what a good cup of coffee would get me.” — Chad
“I felt a boost of energy from SPRINT. I felt focused and pretty sharp, though I did find myself wanting another dose after lunchtime (I took the first serving in the morning with breakfast).” — Wesley
SPRINT by Nootrobox got us excited with some more rarely seen ingredients on top of a tried-and-true base pairing. Is it incredibly innovative and new? Not really. Is it a reliable stack with transparent labeling and ingredients? After our review of SPRINT, we’d say so. Our testers generally felt it gave them a clean energy boost, similar to standard caffeine-theanine pairings. The addition of B vitamins is nice, but if you’re eating a balanced diet or taking a multivitamin (or other nootropic stack), they’re not adding much you don’t already have.
Still, if you’re looking for an incredibly simple, beginner’s nootropic stack, SPRINT is one we’d recommend for clean, straightforward energy and focus without jitters or a caffeine cash. And if you’re looking for a powerful, broad-spectrum combo of nootropic ingredients, combining SPRINT with RISE is a potentially strong option from this California startup.