Rule One Essential Amino Nine Amino Acid is an essential amino acid supplement built to aid muscle recovery, growth, and hydration for active individuals. The blend delivers all nine essential amino acids in balance to back muscle protein synthesis and faster recovery after workouts. It’s crafted with openness and rigour, earning Informed Choice certification for athlete safety.

Benefits & Features:

• Product supports post-workout recovery for a quicker bounce back.
• Delivers a complete essential amino acid profile, including leucine, to help stimulate muscle protein synthesis and support faster recovery when daily protein intake fluctuates consistently.
• Stimulant-free, sugar-free and gluten-free, making it suitable for daily use without jitters or unwanted sugar spikes.
• Electrolyte blend supports hydration during and after workouts for better performance and recovery.
• Regular third party testing and a transparent formula mean you know what’s in every scoop, with banned-substance checks to keep you safe whether you’re training for endurance or lifting heavy.

Rule One’s commitment to athletes shines through a transparent formula and strict safety checks. The product is Informed Choice certified, regularly screened for banned substances at a leading anti-doping lab, giving you confidence whether you’re training for endurance or lifting heavy. The label lists every active ingredient clearly, and the electrolyte blend supports hydration during tough sessions. This heritage of quality underpins Rule One’s approach to essential amino acids, protein shakes and food supplement vitamins for active lifestyles.

Calories, Total Carbohydrate, Chloride, Sodium, L-leucine, L-Isoleucine, L-Valine, Lysine Hydrochloride, L-Threonine, L-Phenylalanine, L-Methionine, L-Histidine, L-Trytophan

• GTIN: 196671008404
• Manufacturer: Rule One
• Size: Peach Mango / 345 grams
• Categories: Amino Acids SupplementsBCAA Powders, Tablets & Drinks (Branch Chain Amino Acids)Rule One
• 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 one scoop (approximately 11.5 grams) of Essential Amino 9 with 8-10 ounces of cold water or your favourite beverage. Consume before, during, or after exercise for best results. On non-training days, enjoy it any time for additional recovery and hydration support. Store in a cool, dry place away from direct sunlight. WARNING: KEEP OUT OF REACH OF CHILDREN. FOR USE BY HEALTHY ACTIVE ADULTS ONLY. CONSULT YOUR PHYSICIAN BEFORE USING THIS PRODUCT IF YOU ARE TAKING ANY MEDICATION, ARE UNDER A PHYSICIAN'S CARE FOR ANY MEDICAL CONDITION, OR UNDER 18 YEARS OF AGE. NOT FOR USE BY WOMEN THAT ARE PREGNANT, TRYING TO GET PREGNANT, OR NURSING.

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 Primary Benefit Is: Muscle Recovery Support

Muscle recovery support refers to the body's ability to repair and rebuild muscle tissue after exercise, helping maintain performance and training consistency.

This formula provides a balanced profile of essential amino acids to support muscle protein synthesis and post-exercise recovery processes.

How Does This Support Muscle Recovery?

Essential amino acids are involved in muscle protein synthesis and repair after exercise, supporting normal muscle function and recovery.

Dr. D'Antona of the University of Bologna found that essential amino acids supplementation can efficiently increase muscle protein synthesis and attenuate catabolic responses after resistance exercise.

This aligns with EFSA guidance on the role of amino acids in supporting muscle maintenance and function during training.

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

Rule One stands out for quality and athlete-focused integrity, making it our chosen partner for this essential amino blend. The brand demonstrates a long-standing commitment to purity and safety through Informed Choice certification and regular third-party anti-doping testing with LGC, underscoring its credibility in sports nutrition. This emphasis on transparent formula and rigorous athlete safeguards aligns with our standards for trustworthy supplementation, which you can explore through the standards we enforce and our clinical review process. the standards we enforce.

Rule One’s approach to manufacturing and testing—paired with a clear, transparent label stating every active ingredient and dosage—resonates with our vetting criteria and with Welzo's medical team who evaluate quality and safety prior to offer. This brand’s focus on regulatory compliance and dedicated athlete safety mirrors the product’s design for non-stimulant, sugar-free, gluten-free recovery support, with a robust 7.5g all-nine essential amino acids per serving and an electrolyte blend for hydration. Our team reviews this rigorously alongside our trusted partner network, including Welzo's healthcare professionals.