Naughty Boy Iso-9 whey protein isolate powder helps build lean muscle gains and quick post training recovery, because it’s made with purified whey isolate that absorbs fast.

Benefits & Features:

• High quality whey protein isolate supports muscle growth and faster post exercise recovery.
• Low fat and low carb formula helps fit into lean dieting.
• Triple filtered protein ensures high purity.
• Post workout recovery is faster because this protein digests quickly, replenishing essential amino acids when you need them most and helping you stay on track with daily protein goals.
• Designed for daily use, it blends smoothly and supports consistent protein intake.

Each scoop delivers 26g of protein, and the triple filtered whey isolate is designed for fast absorption to kickstart recovery. Naughty Boy is a UK based brand renowned for purity, flavour and mixability, with a loyal following for reliable quality and quick delivery. The production emphasises high standards and careful ingredient sourcing, so Iso-9 fits busy routines whether you’re training hard or simply boosting daily protein intake. If you care about quality in valentino perfume or makeup brushes, you’ll appreciate the same attention in this whey, and fans of korean skincare recognise the care behind its clean ingredients.

Energy, Fat, of which Saturates, Carbohydrate, of which Sugars, Fibre, Protein, Salt

• GTIN: 703818981539
• Manufacturer: Naughty Boy
• Size: 900 grams / Chocolate Brownie
• Categories: Best SellersLow-Carb Protein SupplementsNaughty BoySports SupplementsSubscribe & Save Products
• 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.

Add 1 rounded scoop (30g) of Naughty Boy ISO-9 to 200-250ml of cold water and shake or blend until the powder is completely dissolved. This protein can be taken at any time of the day, including post-workout or as a meal supplement. For best results, consume it within 30 minutes after exercise. 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 you are pregnant, breastfeeding, taking any prescribed medication, or have any 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.

The Active Ingredient Is: Whey Protein Isolate

Whey protein isolate is a super clean protein pulled from milk, built to help with lean nutrition and quicker muscle recovery.

This version is usually processed to strip out most of the fat and lactose, giving a fast-digesting protein ideal for post-workout and everyday protein intake.

What Does Whey Protein Isolate Do?

Whey protein isolate helps fuel muscle protein synthesis and recovery after workouts and helps keep lean tissue during training and daily activity, in line with standard nutrition guidance.

Its quick digestion and high bioavailability help efficient protein use, which matters for active people trying to hit daily protein targets.

This supports overall muscle health and daily upkeep of body composition, as noted in nutrition literature and EFSA-aligned guidance.

Dr. Jäger from the University of Innsbruck found that high quality protein intake after exercise boosts muscle protein synthesis, helping optimise recovery and adaptation in active adults.

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

Naughty Boy is Welzo's dependable UK‑based partner for Iso‑9 whey protein isolate thanks to a steadfast focus on purity, mixability and consumer reliability. This brand shines in the market for delivering premium, triple‑filtered whey isolate with speedy digestion, which lines up with our emphasis on clean sourcing and everyday practicality. The manufacturer’s reputation for consistency has earned a loyal following among active lifestyle enthusiasts, and customers often highlight reliable shipping and dependable product quality. This brand’s identity as a specialist in sports nutrition resonates with our commitment to rigorously informed, performance‑oriented supplements. Welzo's healthcare professionals have assessed Naughty Boy against our rigorous standards, and the alignment with our ingredient quality and purity standards reinforces confidence in its manufacturing approach. The decision to team up with Naughty Boy signals a careful choice over other options due to their proven track record, branding consistency and product focus that fits postexercise or daily protein needs. This really makes Naughty Boy Iso‑9 a solid fit for the UK market and Welzo’s customer base.