ATS Labs Plasma Boost – Non-Stim Intense Pre-Workout (50 Servings)

Plasma Boost by ATS Labs is a hard-hitting non-stimulant pre-workout designed for athletes who want to maximise pump, blood flow, and hydration — without relying on caffeine. Whether you’re training late, cycling off stimulants, or stacking with a stim-heavy formula, this product delivers serious support for fullness, volume, and endurance. The formula is built around generous clinical doses, with thoughtful additions that take it beyond the usual pump product.

Ingredient Breakdown (per 2 scoops / 22g):

L-Citrulline – 10,000mg

L-Citrulline is one of the most well-known and well-researched ingredients for supporting nitric oxide production. A high dose like this helps improve blood flow and nutrient delivery during training, which contributes to better muscle fullness and vascular appearance. Unlike citrulline malate, pure L-citrulline provides maximum active content, and at 10g, it’s dosed well above standard pump formulas.

Glycerol Powder (65%) – 2,000mg

Glycerol works by increasing the body’s ability to retain intracellular water, helping muscles stay hydrated and “full” throughout training. This water-drawing effect can improve muscular endurance and reduce the sensation of fatigue. The 65% yield ensures a high concentration of active glycerol, providing a maximum volumising effect without clumping or poor mixability.

Agmatine Sulfate – 2,000mg

Agmatine is a metabolite of arginine and plays a role in modulating nitric oxide levels in the body. It helps extend the pump effect initiated by citrulline and arginine, while also supporting focus and overall training intensity. At 2 grams, it’s dosed significantly higher than in most competing formulas, offering a noticeable edge in vascular response.

L-Arginine – 2,000mg

Although often overshadowed by citrulline, L-arginine still plays a key role in nitric oxide pathways. This amino acid works best when paired with citrulline, which helps reduce its breakdown and boosts its effectiveness. Together, they create a powerful synergy for enhancing blood flow and muscle saturation during intense workouts.

Sodium Bicarbonate – 1,200mg

Commonly used as a buffering agent, sodium bicarbonate helps combat the build-up of lactic acid during high-rep or endurance training. This may allow users to push through additional sets or reps, particularly in high-volume workouts. It’s a functional addition that gives Plasma Boost a performance angle beyond just the ump.

Beet Root Extract – 1,200mg

Beetroot is naturally rich in nitrates, which support nitric oxide levels and help improve muscle oxygenation. It’s also valued for its potential to reduce perceived exertion during training, making it popular among endurance athletes. Including a full 1,200mg adds a natural nitrate layer to an already potent nitric oxide formula.

Arachidonic Acid – 200mg

Arachidonic acid is a polyunsaturated fatty acid that plays a role in the inflammation and repair response of muscle tissue. It’s more commonly seen in advanced hypertrophy formulas, but adds unique value here by potentially intensifying the training effect. This dose brings depth to the profile and separates Plasma Boost from standard pump products.

Nitric Oxide Amplifier Blend – 120mg

This is a functional mix of botanical ingredients designed to complement the core formula. It includes:

• Green Coffee Bean Extract – a source of polyphenols and chlorogenic acids

• Green Tea Extract – contains catechins and supports cellular health

• Turmeric Root – used for balancing oxidative stress

• Tart Cherry Extract – often used for post-exercise muscle comfort

• Blueberry Extract – rich in anthocyanins

• Kale & Broccoli Extracts – sources of plant-based micronutrients

While the total amount is small, these extracts support the recovery side of training and add a clean finish to the product.

Who is it for?

Plasma Boost is ideal for:

• Evening workouts where caffeine is a no-go

• Stim-sensitive individuals wanting to avoid crashes

• Athletes stacking it with stim-based pre-workouts for a fuller effect

• Those cycling off caffeine or looking for a clean pre-workout alternative

• Users who prioritise pump, hydration, and muscular volume in their training

Dosage – Timing – Follow-up

Mix 1 to 2 scoops (11g–22g) with cold water and drink 20–30 minutes before your training session.
Start with one scoop to assess the response.
For stacking: use one scoop of Plasma Boost alongside your stim-based pre-workout.
Drink plenty of water throughout the day to support cell hydration and maximise the pump.

Our opinion

We were genuinely surprised by how strong this formula hits for a non-stimulant. The pump comes on quickly and holds throughout the session, and the muscle fullness is real, not just a marketing claim. It stacks perfectly with high-stim pres but also works great on its own. For anyone looking to cut out caffeine without cutting back performance, this is one of the better formulas we’ve tested in a long time.