ATP Science MagX4 Magnesium Power Blend delivers a comprehensive, multi-pathway magnesium matrix engineered to support muscle relaxation, reduce cramping, calm the nervous system, and optimise post-exercise recovery. Designed for athletes, hard-training gym-goers, and active Australiaers experiencing physical fatigue or tight muscles, this advanced powder combines four premium, highly bioavailable forms of magnesium in a delicious berry drink that absorbs quickly without the digestive issues common to low-grade magnesium salts.

Key Benefits & Features

• 4-Form Magnesium Complex: Delivers a high-yield blend of magnesium bisglycinate, citrate, threonate, and malate to maximise cellular absorption across multiple biological pathways.

• Relieves Muscle Tightness & Cramping: Rapidly restores essential mineral balance to relax contracted skeletal muscles and prevent painful spasms.

• Nervous System & Stress Support: Helps down-regulate the sympathetic nervous system to ease physical tension and promote daytime calm.

• Enhances Restorative Sleep: Calms neurotransmitter activity in the brain, helping you drift off faster and achieve deeper, non-REM recovery sleep.

• Gentle on the Digestive Tract: Formulated with chelated and organic magnesium sources that minimise the laxative effect common in standard magnesium oxide products.

How It Works

Magnesium is a critical macromineral involved in over 300 biochemical reactions within the human body, with its most vital athletic roles centred on energy production, neuromuscular transmission, and muscle contraction-relaxation cycles. During intense physical exertion and heavy perspiration, intracellular magnesium reserves deplete quickly. A lack of bioavailable magnesium leaves calcium unchecked inside muscle fibres, keeping muscle tissue chronically contracted and leading to spasms, twitching, and prolonged soreness.

ATP Science MagX4 solves poor absorption by combining four distinct magnesium types, each bound to specific organic carriers that target different tissues. Magnesium malate and citrate support cellular ATP resynthesis and energy metabolism inside muscle fibres, while magnesium bisglycinate and threonate efficiently cross cellular membranes to soothe neuromuscular excitability, lower cortisol levels, and signal systemic physical relaxation.

Recommended Use

• Serving Size: Mix 1 level scoop (approx. 5g) into 150–250ml of cold water in a shaker or glass, stir thoroughly, and consume immediately.

• Daily Recovery Timing: Take 1 serving in the evening 30–60 minutes before bed to promote restorative sleep and overnight tissue repair.

• Post-Workout Cramp Relief: Can also be taken immediately following intense or endurance-based training sessions to support muscle relaxation and rehydration.

Container Size: 100G
Serving Size: 1 Scoop (2.5G)
Servings Per Container: 40

We use NZ Couriers as our courier service using an international service. NZ Couriers provides our customers with fast and reliable delivery to destinations across their comprehensive AUS network. 

Standard orders over $60.00 receive free* shipping nationwide, excluding WA, NT, TAS.
Standard delivery starts from $12.90 per shipment for orders under $60.00 
Signature Required $14.90 per shipment. Please ensure you do not have the 'authority to leave' authorization set up at your address with NZ Couriers should you wish to use this service.
If you don't want NZ Couriers to leave your parcel unattended, please select the signature required option. This is especially recommended for high value orders. Neither NZ Couriers nor Sprint Fit are liable for parcels that are stolen, damaged or lost after an item has been delivered.

Final pick up each day is at 3.45pm Monday to Friday. 

*Excludes public holidays and weekends as courier is closed

Click here to view the full Shipping Details and Returns Policy.