Amino Acid Base helps muscle protein synthesis and recovery via nine essential amino acids and vitamin B6, delivering clean, preservative free nutrition from a trusted Metabolic Maintenance heritage. Free form amino acids support rapid absorption, while vitamin B6 helps unlock their use in energy, mood, and repair. Metabolic Maintenance is known for purity and potency, with formulas free from preservatives and excipients.

Available Sizes & Variants:

200 g unflavoured amino acid base - a flexible daily dose for mixing with shakes.

Benefits & Features:

• Supports aminos for leaner, stronger muscles.
• Provides free form amino acids, enabling rapid absorption and efficient utilisation to support energy, recovery, and daily amino acid replenishment, helping you stay active throughout the day as an amino acid supplement.
• Vitamin B6 supports amino acid metabolism and neurotransmitter synthesis for better function.
• Preservative and excipient free formula keeps ingredients pure and trustworthy nutritional supplements.
• Designed for daily use across meals, it helps replenish essential amino acids to support metabolic health and maintain muscle during periods of stress or ageing.

Metabolic Maintenance has earned a reputation for professional grade purity. Amino Acid Base delivers nine essential amino acids plus vitamin B6 per serving, all in a preservative free powder for flexible dosing. The formula replenishes amino acid levels to support energy, muscle maintenance, and overall health, aligning with evidence that essential amino acids help preserve and build muscle mass under stress and ageing. This amino acid supplement slots neatly into a daily nutritional supplements routine.

L-Histidine HCl, L-Leucine, L-Phenylalanine, L-Lysine HCl, L-Arginine HCl, L-Valine, L-Isoleucine, L-Threonine, L-Methionine.

• GTIN: 838287001102
• Manufacturer: Metabolic Maintenance
• Categories: Amino Acids SupplementsBCAA Powders, Tablets & Drinks (Branch Chain Amino Acids)Metabolic MaintenanceNew ArrivalsTENA
• 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.

Use according to your healthcare professional's instructions. 1 capsule 3 times daily\, recommended to take 30 minutes before meals

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

The Active Ingredient Is: Vitamin B6 (Pyridoxal 5'-phosphate)

Vitamin B6, in its active pyridoxal 5'-phosphate form, is a water-soluble micronutrient involved in a bunch of metabolic processes essential for normal body function.

This form is the biologically active metabolite of B6 and helps with amino acid metabolism and neurotransmitter synthesis, contributing to the body’s ability to utilise amino acids effectively.

What Does Vitamin B6 Do?

Vitamin B6 takes part in amino acid metabolism and neurotransmitter synthesis, enabling normal metabolic function as recognised by EFSA and NHS guidelines.

It helps with the utilisation of amino acids and supports energy-related metabolic pathways when paired with other nutrients in the diet.

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

Our medical team selected Metabolic Maintenance as the partner for Amino Acid Base because of the brand’s solid heritage as a professional‑grade supplement maker known for purity, potency and a clear focus on ingredient quality. Metabolic Maintenance is recognised for delivering formulas that are free from preservatives and excipients, reflecting a commitment to clean, high‑quality nutrition that aligns with Welzo’s standards.

This brand stands out for its established reputation within the industry and its emphasis on rigorous manufacturing standards. Their approach to formulation emphasises purity and high‑quality ingredients, which we consider essential when supporting amino acid replenishment in actively healthy individuals and older populations. Our evaluation highlights Metabolic Maintenance as a trusted source that prioritises ingredient integrity, which we deem foundational to safe, consistent supplementation.

Metabolic Maintenance’s Amino Acid Base is well aligned with our guidance on essential amino acids and vitamin B6, providing a targeted blend designed for effective utilisation and support of metabolic processes. This product fits our evidence‑based criteria for amino acid supplementation, offering a clean, dose‑responsive option that complements the needs of our customers.

This brand was evaluated by our medical team for compliance with our quality assurance criteria, and their commitment to quality translates into tangible customer benefits across reliability, consistency and safety.