Trec Nutrition AAKG Mega Hardcore is a pre-workout nitric oxide booster that helps you push through tougher workouts by boosting blood flow and nutrient delivery to muscles. Two essential ingredients fuel the blend [these two compounds] L-Arginine Alpha-Ketoglutarate and Citrulline Malate. It’s built on our heritage of science-backed blends and careful quality controls.

Benefits & Features:

• Stronger pumps during workouts help you feel the session more intense
• Vasodilation from the star ingredients supports better nutrient delivery to working muscles, making creatine stacks more effective
• Faster recovery between sets reduces fatigue and stiffness after heavy sessions
• By combining two proven precursors, the formula aims to maximise vasodilation and nutrient delivery, helping you train harder on challenging sessions and bounce back quicker
• Daily use fits busy schedules

Built on a long standing line of performance formulas, this product reflects Trec Nutrition's commitment to purity and science led blends. The star duo of AAKG and citrulline malate supports nitric oxide pathways, helping blood flow to working muscles and nutrient delivery during heavy sessions. The capsules are gelatin based and manufactured under strict quality controls to ensure consistent potency. This product slots easily into a broader routine that might include creatine, probiotics, or a vitamin d supplement.

L-arginine alpha-ketoglutarate (AAKG), of which L-Arginine, Citruline Malate, of which L-citrulline

• GTIN: 5901828345104
• Manufacturer: Trec Nutrition
• Size: 120 Capsules
• Categories: Sports SupplementsTrec Nutrition
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take a single serving of the product – 4 capsules two times a day with 300 ml of water. On workout days: 1st serving 30 minutes before the workout; 2nd serving immediately after the workout. On non-workout days: 1st serving 30 minutes before your first meal, 2nd serving before bedtime. Store in a cool, dry place away from direct sunlight. Keep out of the reach of young children. Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied and balanced diet. A varied and balanced diet and a healthy lifestyle are important. Do not take during pregnancy and in children or for prolonged periods without consulting a doctor.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: L-Arginine Alpha-Ketoglutarate (AAKG)

L-Arginine Alpha-Ketoglutarate is a form of the amino acid derivative used as a blood-flow helper to support normal circulation during physical activity.

This form is combined with Citrulline Malate to help maximise delivery of nutrients to working muscles through improved circulation.

What Does L-Arginine Alpha-Ketoglutarate Do?

Evidence suggests arginine-based compounds may support nitric oxide production, which can influence vascular function during exercise. Effects on performance vary, with some studies showing modest improvements in endurance or recovery indicators.

Dr. Viribay of a university found that arginine supplementation does not consistently improve exercise capacity in healthy individuals, though certain performance markers may be affected. This mechanism relates to the role of arginine in blood flow and metabolic support during high‑intensity activity.

How Citrulline Malate complements this, in combination, is to provide another pathway for nitric oxide synthesis and potentially improve recovery and muscle comfort after strenuous effort.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Trec Nutrition stands out to us for its focused take on nitric oxide precursors, especially the mix of AAKG and Citrulline Malate that sits at the heart of this supplement. This brand’s formulation fits with our emphasis on proven ingredient routes that back performance-related blends, making it a natural match for this product in our range.

Our selection process checked this brand against our quality and safety standards. This brand was assessed by our team of medical experts for compliance with our quality assurance criteria, ensuring alignment with Welzo’s rigour and patient-first ethos. You can learn more about how we apply our standards when reviewing products through our team of medical experts and our quality assurance criteria.

In the UK market, this brand is well placed thanks to its clear, research-led formulation and commitment to potency in active ingredients. This product from Trec Nutrition is therefore a solid product partner for Welzo, offering a clear pathway from formulation through to consumer use.