£19.99 GBP £29.99
Tax included


Can help increase muscle size & strength. Supports muscle recovery processes and contributes to normal testosterone levels

Recommended dose: 1x pill per day. Do not exceed 2x pills per day.

Third Party Testing

All our products are rigorously tested by independent third parties to ensure authenticity and that you are receiving the real deal.

Delivery and Shipping

How long does my order take to arrive?

We adhere to send everything the next working day from your purchase. Everything is sent royal mail tracked and signed for and tracking numbers will be provided once we have shipped your item.

International orders will take between 5-10 working days. UK orders will take a maximum of 3-5 working days.


Can I amend my order once placed

We are really quick at packing your order, which means that we would be unable to change your order once you have made it. This includes changing the delivery option, delivery address or products in the order.



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You can also pay later using LayBuy.

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Try X-Treme Test Booster

  • Muscle Size and Strength

    X-Treme Test Booster contains key ingredients like Magnesium citrate and Zinc Methionine, which are essential for muscle growth. These components help enhance muscle size and strength by supporting anabolic processes and optimizing hormonal balance.

  • Supports Muscle Recovery

    The combination of Magnesium and Vitamin B6 in X-Treme Test Booster aids in muscle recovery by reducing muscle fatigue and promoting the repair of muscle tissues. This allows for quicker recovery between workouts and more consistent training sessions.

  • Supports Healthy Test Levels

    X-Treme Test Booster includes Zinc Aspartate, which plays a crucial role in maintaining normal testosterone levels. Adequate testosterone is vital for muscle development, energy levels, and overall physical performance.

Reduces Tiredness and Fatigue

The presence of Pyridoxine Hydrochloride (Vitamin B6) in X-Treme Test Booster helps reduce tiredness and fatigue. Vitamin B6 is involved in energy metabolism and can improve overall energy levels, enhancing endurance and stamina.

Supports Protein Metabolism

Magnesium and Zinc in X-Treme Test Booster contribute to normal protein metabolism, which is essential for muscle protein synthesis and growth. This ensures efficient utilization of dietary proteins for muscle building.

Frequently Asked Questions


What countries do you ship to?

We curre

How long will it take to receive my order?

Returns and Refunds

How do I return a product?

All returns must be postmarked within fourteen (14) days of the purchase date. All returned items must be in new and unused condition, with all original tags and labels attached.



To return an item, contact us at customerservice@aphscience.com to arrange returns/refunds on unopened & unused orders

 Please note, you will be responsible for all return shipping charges. We strongly recommend that you use a trackable method to mail your return. 

How long will it take to receive my refund?

Refunds are processed within 7 days from when we receive the item(s).

About X-treme Test Booster

What is X-treme Test Booster by APH Science?

X-treme Test Booster by APH Science is a scientifically formulated dietary supplement designed to support healthy testosterone levels, enhance physical performance, and promote overall well-being. It contains key ingredients such as Magnesium Citrate Buffered, Magnesium Oxide, Zinc Methionine, Zinc Aspartate, and Vitamin B6.

How does X-treme Test Booster support testosterone levels?

X-treme Test Booster supports testosterone levels through a blend of essential nutrients. Magnesium plays a crucial role in maintaining healthy testosterone levels, while Zinc Methionine and Zinc Aspartate are vital for testosterone production and regulation. Vitamin B6 (Pyridoxine Hydrochloride) further supports hormone balance and overall energy metabolism.

What are the benefits of using X-treme Test Booster?

X-treme Test Booster Supplements offer several benefits, including:

• Support for healthy testosterone levels
• Enhanced physical performance and strength
• Improved energy levels and reduced fatigue
• Support for muscle growth and recovery
• Overall improvement in mood and well-being

How should I take the X-treme Test Booster?

For optimal results, take one capsule of X-treme Test Booster daily, preferably with a meal to enhance absorption. Follow the instructions on the product label and consult with a healthcare professional if you have any questions or concerns.

What are the ingredients?

Magnesium citrate buffered, magnesium oxide, Capsule Shell (Gelatin (Bovine), HPMC), Zinc Methionine, Zinc Aspartate, Bulking agent (Microcrystalline Cellulose), Anti caking agent (Magnesium stearate (Vegetable)), Pyridoxine Hydrochloride (Vitamin B6), Anti caking agent.

Try X-Treme Test Booster

APH Science V2


£19.99 GBP £29.99

About The Product

60 caps

Take 2 caps per day.

At A Glance



Magnesium citrate buffered, magnesium oxide, Capsule Shell (Gelatin (Bovine), HPMC), Zinc Methionine, Zinc Aspartate, Bulking agent (Microcrystalline Cellulose), Anti caking agent (Magnesium stearate (Vegetable)), Pyridoxine Hydrochloride (Vitamin B6), Anti caking agent.


  • 60 Capsules
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