Product Information
Description
INTERNATIONAL PROTEIN AMINO CHARGED WPI
Amino Charged WPI is International Protein's premium whey protein isolate — a no-compromise, high-protein product built for athletes who want the purity of a true WPI with the added benefit of a disclosed amino acid enhancement. At 35.3g of protein per 40g serve with just 152 calories, 0.3g fat, and 1.4g carbohydrates, the macros are as clean as any WPI on the market. What elevates it beyond a standard WPI is the inclusion of added free-form L-Glutamine (640mg) and L-Arginine (360mg) — bolstering the already impressive natural amino acid profile of the whey isolate base with targeted recovery and blood flow support.
The protein source is grass-fed WPI, processed to remove the vast majority of fat and lactose (just 0.3g lactose per serve), making it highly digestible with minimal GI stress. The formula includes whey peptides alongside the isolate fraction, which contributes to the rapid absorption profile the product is known for. It is gluten-free, free from aspartame, free from stabilisers, and manufactured without the fillers and bulking agents common in lower-quality proteins.
The amino acid transparency here is worth noting. International Protein discloses the full essential and non-essential amino acid profile on the label — a practice that separates brands who use quality whey from those who don't. The numbers are strong across the board: 3,605mg Leucine per serve is a standout figure and sits well above the threshold considered necessary to maximally trigger muscle protein synthesis. Isoleucine (2,557mg), Valine (2,187mg), Lysine (3,220mg), and Threonine (2,481mg) are all well-dosed, supporting a comprehensive recovery response from a single serve.
Per serve (40g):
152 calories
35.3g protein
0.3g fat (0.1g saturated)
1.4g carbohydrates (0.5g sugars)
0.3g lactose
640mg L-Glutamine (added)
360mg L-Arginine (added)
3,605mg Leucine
2,557mg Isoleucine
2,187mg Valine
406mg Potassium
Key features:
Grass-fed WPI base with whey peptides
Full essential and non-essential amino acid profile disclosed
Added L-Glutamine and L-Arginine for enhanced recovery and circulation support
88.3g protein per 100g — among the highest protein density in the WPI category
Gluten-free
No aspartame, no stabilisers
2025 NW Supplement Award — 3rd Best WPI
4.8 stars / 74 reviews
Available in 907g, 1.25kg, and 3kg sizes, including a 3kg Multi-Pack (Chocolate, Vanilla, Banana)
Australian brand
Flavours available: Vanilla Ice Cream, Chocolate, Banana Ice Cream, Cookies & Cream, Strawberry, Chocolate Raspberry, Caramel Popcorn
Who is it for?
Athletes across all disciplines who want a clean, high-protein WPI for post-workout recovery or any-time protein support. The low lactose content makes it well-tolerated by people with mild dairy sensitivity, the gluten-free credential suits a broad range of dietary requirements, and the amino acid fortification gives it more recovery utility than a plain WPI. The 3kg option offers strong value for committed daily users.
Directions:
Mix 40g (approximately 3 tablespoons) with 200–300ml of cold water or preferred beverage in a shaker or blender. Take up to 3 serves per day — morning, between meals, or post-workout.
Warning: Not suitable for children under 15 years of age or pregnant women. Should only be used under medical or dietetic supervision. This product is not a sole source of nutrition and should be consumed in conjunction with a nutritious diet and an appropriate training or exercise programme.
Direction of use
Directions:
Mix 40g (approximately 3 tablespoons) with 200–300ml of cold water or preferred beverage in a shaker or blender. Take up to 3 serves per day — morning, between meals, or post-workout.