Amino IV is an intra workout amino acid supplement that boosts muscle recovery and hydration, with heavy leucine content driving muscle protein synthesis. Fast recovery, less soreness, and steady hydration come from an broad spectrum of amino acids plus electrolytes. PEScience has earned a reliable reputation since 2013 for evidence backed formulations and high leucine content. EAAs back balanced recovery and supply all the building blocks for repair across intense workouts.

Benefits & Features:

• Helps speedy recovery and reduced muscle soreness during tough workouts.
• Leucine-rich profile fuels muscle protein synthesis for truly big gains.
• EAAs supply the full building blocks for repair across intense workouts.
• Electrolyte blend helps hydration and neuromuscular function during long sessions.
• Designed for daily use, it slots into typical training routines and fueling habits easily.

Since 2013 PEScience has earned a reputation for evidence backed formulas and high leucine content. Amino IV combines a five-gram dose of branched chain amino acids per serving in a 2:1:1 ratio with a full spectrum of essential amino acids and taurine, plus an electrolyte blend to keep you hydrated during challenging sessions. This intra workout formula supports muscle protein synthesis, helps faster recovery and helps maintain performance when training volume is high, making it a favourite among athletes and gym goers.

Calcium (as Calcium Glycerophosphate), Potassium (as Potassium Citrate), Magnesium (as Magnesium Glycerophosphate), Sodium (as Sodium Citrate)

• GTIN: 40232289149
• Manufacturer: PEScience
• Size: Sour Green Apple - 405 grams
• Categories: BCAA Powders, Tablets & Drinks (Branch Chain Amino Acids)PEScienceSports Supplements
• 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.

Mix 2 level scoops (13.5g) of PEScience Amino IV in 12-20 ounces of water. Adjust the water amount to achieve your desired taste. Consume during workouts or athletic events for optimal hydration and performance. Additional servings can be taken throughout the day on training and non-training days. Store in a cool, dry place, away from direct sunlight and moisture. Keep out of reach of children. Do not exceed the recommended daily dose. If pregnant, breastfeeding, taking prescribed medication, or have a medical condition, consult a healthcare professional before use.

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.

Leucine is an essential amino acid that helps to support muscle protein synthesis. This product provides leucine as part of an entire amino acid mix to boost athletic performance. This form includes leucine inside an intra-workout amino acid matrix that also contains other EAAs, BCAAs, taurine, and electrolytes to help overall muscle recovery and hydration during exercise.

What Is Leucine For?

Leucine helps manage muscle building processes by triggering the mTOR pathway, contributing to normal muscle metabolism and growth when paired with resistance training, which EFSA-aligned discussions on amino acid function note. Dr. Tipton from the university has shown that BCAA provision with leucine supports recovery and the incorporation of amino acids into muscle tissue during and after exercise.

This supplement isn't intended to diagnose, treat, cure, or prevent any disease.

Welzo chose PEScience as our partner for Amino IV because our medical team really values brands with real heritage and a track record of evidence backed formulations. PEScience has stood out since 2013 as a trusted name in sports nutrition, known for its focus on high leucine content and full spectrum EAAs, which line up with our quality criteria for intra workout support. This brand’s long history and steady reputation in the field underpin our trust in their manufacturing mindset and consistency across products.

Our evaluation process emphasises sourcing practices, quality, and safety. The team reviews a brand’s ability to provide transparent composition and robust testing culture, which PEScience demonstrates through its specialised formulations and market leadership in amino acid blends. This is complemented by PEScience’s ongoing emphasis on delivering balanced amino acid profiles to support training needs, with the product designed to include electrolytes that aid hydration during workouts.

Welzo selected PEScience Amino IV because it meets our criteria for credible branding, rigorous quality standards, and product level fit for an intra workout amino system. Our expert team of doctors, nurses, and nutritionists guide this partnership and our ingredient quality and purity standards inform every evaluation.