FitBoost | Ultra-Premium Sugar-Free Energy Drink Mix with Caffeine & B-Vitamins

Most energy drinks are liquid sugar and a guaranteed crash. FitBoost is neither.

$69.00

30 servings | $2.30/serving

*

A caffeine pterostilbene cocrystal that absorbs more slowly than ordinary caffeine, 95mg, no megadose
Zero sugar and no artificial sweeteners or colors, so there’s no sugar high to crash from
A full B-vitamin complex and electrolytes to support energy production and hydration
Antioxidants, including S-acetyl-L-glutathione and 500mg of vitamin C

FitBoost is a zero-sugar energy drink mix built on a caffeine pterostilbene cocrystal, plus a full B-complex, electrolytes, and antioxidants, to support a clean, steady energy level.

Flavor Berry Citrus

Built in the USA
Free Shipping
Satisfaction Guaranteed

Caffeine, Done Smarter
A caffeine pterostilbene cocrystal, studied to absorb more slowly than ordinary caffeine. Smarter delivery, not just a bigger hit.
Zero Sugar, Zero Sugar Crash
No sugar, no artificial sweeteners, no colors, just stevia. No sugar spike, no inevitable drop.
Built for a Slower Finish
Early research on the cocrystal points to caffeine that may last longer with a smoother finish. The science is still building.
More Than Caffeine
B-vitamins for energy metabolism, electrolytes for hydration, and antioxidants like vitamin C. A real formula, not a stimulant.

Closeup of fit female athlete holding a box of Fitties FitBoost

Caffeine and Sugar Isn’t a Formula.

The crash isn’t a side effect of energy drinks, it’s the business model: sugar and a fast hit of caffeine get you up, the drop brings you back. FitBoost is built the opposite way. Its caffeine comes from a pterostilbene cocrystal studied to absorb more slowly than the ordinary kind, there’s zero sugar so nothing to spike and drop from, and underneath sit real B-vitamins, electrolytes, and antioxidants instead of just stimulants. The cocrystal research is still early, but the intent is steady energy, not a roller coaster.

Who FitBoost Is For

Built for people who want clean daily energy without the sugar and the crash.

Who It’s For:
Anyone who wants daily energy without the sugar and the crash most energy drinks come with
People who want a moderate, smarter caffeine, around a cup of coffee’s worth, not a 300mg megadose
Who It’s Not For:
Anyone sensitive to caffeine or after a stimulant-free option, since each serving has 95mg of caffeine
Anyone wanting a heavy pre-workout hit, since FitBoost is daily energy, not a training stimulant

What’s Inside

A real energy formula, built on four pillars instead of sugar and a stimulant.

The Caffeine Cocrystal

A caffeine pterostilbene cocrystal delivering 95mg of caffeine, studied to absorb more slowly than ordinary caffeine, alongside coffee fruit, green tea, taurine, and amino support.

Bioactive B-Vitamins

A full B-complex in active forms, including Quatrefolic® folate and methylated B12, the cofactors your body uses to turn food into usable energy.

Electrolytes and Chelated Minerals

Sodium, potassium, and magnesium for hydration and energy, plus Albion® and TRAACS® chelated zinc, manganese, and chromium for better absorption.

Antioxidant Support

S-acetyl-L-glutathione, a highly absorbable glutathione, plus 500mg of vitamin C and pterostilbene, a more bioavailable cousin of resveratrol.

Formulated to exclude: wheat, gluten, yeast, soy protein, animal and dairy products, fish, shellfish, peanuts, tree nuts, egg, ingredients derived from genetically modified organisms (GMOs), artificial colors, artificial sweeteners, and artificial preservatives.

Other ingredients include: maltodextrin, citric acid, malic acid, natural grape powder, natural flavors (no MSG), stevia leaf extract, and silica.

What to Expect From FitBoost

Part of FitBoost you feel fast, part is what the cocrystal is built for. Here’s the honest version.

First Hour
Mix a stick into water and the caffeine and B-vitamins go to work. Most people feel the lift within the first hour, the same-session energy you’d expect.
Hours 2-6
Here’s where the cocrystal is designed to differ. In early research, more of its caffeine was still in the blood at four and six hours, pointing to a more gradual finish than ordinary caffeine.
Daily
FitBoost is built for daily use. One stick a day supports a steady energy level, not an occasional jolt you crash off of.

Female pulling packet of FitBoost from box in kitchen

How to Use FitBoost

Pour one stick pack into 6 to 12 oz of water
Stir or shake until dissolved

Once a day, one stick pack per serving. Morning or early afternoon works best. Skip it late in the day so the caffeine doesn’t affect your sleep. Contains 95mg of caffeine per serving. Don’t combine with other stimulants, and use caution if you have a heart rhythm condition or take medication.

Pro Tip: Adjust the water to taste, less for a stronger flavor, more to sip on over time.

How FitBoost Compares

Most energy drinks run on sugar and a big hit of ordinary caffeine, the recipe for a fast spike and a hard crash. FitBoost uses a slow-release caffeine cocrystal, zero sugar, and real nutrients. Energy without the sugar high.

Caffeine pterostilbene cocrystal (slow-release)

Zero sugar, no artificial sweeteners or colors

Full B-vitamin complex and electrolytes

Antioxidants including glutathione and 500mg vitamin C

Moderate 95mg caffeine, not a megadose

FitBoost

Shop

Three white plastic jars of different sizes on a white background

FitBoost

Typical Energy Drinks

Shop

✓

✕

✓

Rarely

✓

Varies

✓

✕

✓

Varies

What People Notice About FitBoost

See what people are saying

Fitties supplement bottles and packaging on a reflective surface with a gray background

Where FitBoost Fits Your Stack

FitBoost handles daily energy. Pair it with the foundation and the focus side.

FitNutrients+: the daily vitamin and mineral foundation under everything.
FitNeuro: brain-targeted magnesium for focus to go with the energy.
FitProtect: cellular antioxidant support to complement the formula’s antioxidants.

Find Your Stack

Frequently Asked Questions

What is the caffeine pterostilbene cocrystal?

It’s a form of caffeine bound together with pterostilbene (a relative of resveratrol) into a single cocrystal structure. In studies, caffeine from this cocrystal absorbed more slowly than ordinary caffeine, which is why FitBoost uses it instead of a plain caffeine dose.

How much caffeine is in FitBoost?

Each serving has 95mg of caffeine, roughly the amount in a cup of coffee. It’s a moderate dose, not the megadose you’ll find in a lot of energy drinks and pre-workouts.

Will FitBoost make me crash?

FitBoost has zero sugar, so there’s no sugar high to crash from. Its caffeine comes from a cocrystal that, in early research, absorbs more slowly than ordinary caffeine, which scientists are studying for a more gradual finish. That research is still preliminary, but the formula is built to avoid the spike-and-crash pattern of sugary energy drinks.

What does FitBoost do?

FitBoost is formulated to support a healthy energy level, replace electrolytes, and provide antioxidant support, using a smarter caffeine alongside B-vitamins, electrolytes, and antioxidants like glutathione and vitamin C.

Does FitBoost have sugar or artificial sweeteners?

No. FitBoost has zero sugar and uses stevia and natural flavors, with no artificial sweeteners, colors, or preservatives.

When should I drink FitBoost, and can I have it every day?

Yes, FitBoost is made for daily use, one stick pack a day. Morning or early afternoon works best, and it’s worth skipping late in the day so the caffeine doesn’t interfere with sleep.

Is the caffeine in FitBoost safe, and can I take it with medication?

Each serving has 95mg of caffeine. As with any caffeine, don’t combine it with other stimulants, and use caution if you have a heart rhythm condition or take medication. Check with your healthcare provider if you’re unsure.

Is FitBoost vegetarian and allergen-friendly?

Yes. FitBoost is vegetarian and made without gluten, soy, dairy, GMOs, and artificial colors, sweeteners, or preservatives.

Can I stack Fitties products together?

Yes. All Fitties supplements are formulated with complementary ingredient profiles, so they can be used as part of the same daily routine. If you want a ready-made stack, our curated bundles pair the right products for strength, performance, recovery, and overall health so you don't have to guess.

How are Fitties products tested?

Every Fitties formula is manufactured in an NSF-certified GMP facility and tested for purity, potency, and identity. No low-grade shortcuts. Just ultra-premium, research-backed ingredients, every one listed on the label.

Where are Fitties products manufactured?

Every Fitties formula is manufactured in the USA, at a cGMP-compliant, FDA-registered facility in Orlando, Florida. We don’t outsource quality. We build everything to the highest standard because your health and performance deserve nothing less.

Are Fitties supplements vegan, gluten-free, or allergen-friendly?

Each product is different, and we call out all dietary details clearly on every product page. Many formulas are vegan, gluten-free, dairy-free, or soy-free, and we never use artificial dyes or cheap fillers. If something doesn’t fit your dietary needs, you’ll know upfront.

What Real Users Are Saying

Reviews from athletes and high performers who expect to get what they pay for in their supplements.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.