Naughty Boy Illmatic BCAA 390 grams

L-Leucine (3500 mg), L-Isoleucine (1750 mg), L-Valine (1750 mg), Velositol® (Amylopectin-Chrom-Complex) (2000 mg), Astragin® (Panax Notoginseng-Wurzel Extrakt) (50 mg), Other Ingredients (Apple flavor): Malic Acid, Flavoring, Sweetener (Sucralose), Color: E122.

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Mix 1 level scoop (1 serving) of ILLMATIC BCAA with 400ml of ice-cold water. Consume before training, during training, or post-training. It can also be taken between meals to support recovery and fuel performance, and on non-training days. Store in a cool, dry place away from direct sunlight. Keep out of reach of children. This product is manufactured in a facility that processes products containing nuts, milk, gluten, egg, soya, shellfish, and peanuts.

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

The Active Ingredient Is: L-Leucine

L-Leucine is an essential amino acid that contributes to normal protein synthesis and muscle maintenance. The BCAA blend in this product includes L-Leucine sourced from vegan, fermented plant materials.

This form is part of a vegan amino acid profile alongside other BCAAs and is paired with absorption-enhancing ingredients to support effective uptake of amino acids during exercise.

What Does L-Leucine Do?

L-Leucine is involved in triggering the body’s protein building process, helping to support muscle function and recovery after activity. [This means it plays a key role in helping muscles recover after training, and it’s easy to add to your routine.]

This mechanism is enhanced by other components in the formula that aid amino acid absorption and utilization, contributing to the overall efficiency of protein synthesis within the body. It also helps to support and optimise how amino acids get used while you train, which matters for daily performance.

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

Naughty Boy has positioned itself as a premium UK–based label renowned for ingenuity, transparency and bold formulations. This track record, built around high‑potency amino acid blends and athlete‑focused products, made us confident in their ability to deliver consistently high‑quality ingredients to active consumers. The Illmatic BCAA range includes Velositol® and AstraGin®, trademarked components that show the brand’s commitment to leveraging well‑established, performance‑driven ingredients within a vegan, plant‑forward formula.

The manufacturer’s approach to quality is mirrored in how their products are designed for absorption, muscle recovery and growth support, aligning with the brand’s reputation for premium ingredient selection and functional integrity. Our evaluation team at Welzo cross‑checked the brand against our quality assurance criteria and confirmed alignment with rigorous standards supported by our medical team our medical team and our quality framework our quality assurance criteria.

Based on this strong brand heritage and product‑level quality, we confidently recommend Naughty Boy Illmatic BCAA as a well‑suited choice for athletes seeking a high‑quality, vegan BCAA formula with enhanced absorption features.