Raiseys ISO90+ Clean Lean Whey Isolate

Raiseys ISO90+ Clean Lean Whey Isolate 1.8KG — 60 Serves, Best Value

The bulk size of Raiseys' leanest protein. 60 serves of cross-flow ultra-filtered New Zealand whey isolate, delivering 27g of protein from a 30g serve at the best cost per serve in the range. 90% protein by weight, with the fat, carbohydrate, sugar and lactose filtered out. No artificial flavours, colours or sweeteners. In stock at TopDog Nutrition.

What Cross-Flow Ultra-Filtration Actually Does

Whey starts as a by-product of cheesemaking, containing protein alongside fat, lactose and minerals. How you separate them determines what you end up with.

Cross-flow ultra-filtration is a low-temperature, physical filtration process — liquid whey is passed across a membrane that lets small molecules through while retaining the larger protein fractions. Because it uses no acid, no high heat and no chemical solvents, the protein comes through with its structure intact and its bioactive fractions preserved. Ion-exchange processing produces a high protein number too, but the harsher chemistry denatures some of the more fragile immune-supporting fractions in the process.

The practical outcome: a protein that's 90% pure by weight, mixes smooth rather than gritty, and keeps the immunoglobulins and lactoferrin that make whey more than just an amino acid delivery system.

Who ISO90+ Is Actually For

• Anyone tracking macros closely. At 27g protein in a 30g serve, almost nothing else is coming along for the ride. When your daily carb and fat budget is tight, that difference compounds across two or three shakes a day.
• Cutting phases and contest prep. Maximum protein, minimum everything else, so the calories go where you want them.
• People who don't tolerate whey concentrate. Isolate is significantly lower in lactose than concentrate. If standard whey leaves you bloated or uncomfortable, that's usually the lactose — and ISO90+ removes most of it.
• Anyone wanting a lighter shake. Isolate drinks thinner and cleaner than a concentrate blend, which suits people who find creamy proteins heavy.

ISO90+ or PRO75?

Both are quality NZ proteins — they solve different problems.

PRO75 gives you 24g protein per 32g serve from a WPC and MPI blend, with L-Glutamine and Glucosamine added. The MPI fraction means slower digestion and better satiety, and the added glucosamine covers joints. It's the all-rounder and the better value per gram of protein.

ISO90+ gives you 27g protein per 30g serve with the fat, carbs and lactose filtered out. It's faster-digesting, leaner and easier on sensitive stomachs, at a higher price per serve.

Cutting, macro-counting or lactose-sensitive: ISO90+. Everyday protein, recovery and value: PRO75. Plenty of people run both — isolate post-training, PRO75 as a daily protein and snack.

Naturally Sweetened, Naturally Flavoured

Raiseys' food technologists formulate without artificial flavours, colours, sweeteners or fillers. No sucralose, no acesulfame potassium, no added sugar. For a product built around purity, adding artificial sweeteners back in would undercut the whole point.

Banned substance free, gluten free, GMO free. Made in New Zealand.

Directions

Shake or blend one 30g scoop with 200–250ml of cold water or milk. Water keeps it leanest and lets the isolate drink light; milk adds body and calories if you're not restricting.

Best taken 30–60 minutes before training or immediately after. Also works as a between-meals protein hit, or stirred through breakfast cereal or oats.

Stacking

ISO90+ takes unflavoured additions well without thickening. Creatine Monohydrate stacks straight in post-workout, and L-Citrulline Malate works pre-training if you're building your own stack rather than buying a pre-made pre-workout.

Why the 1.8KG

Isolate carries a premium price per gram of protein, which is the main argument against using it as your everyday protein. The 1.8KG is what narrows that gap — 60 serves, two months at one shake a day, at a noticeably better rate than the 900g.

Buy it if you already know the flavour suits you and isolate is your daily protein. If you haven't tried ISO90+ yet, start with the 900g.

Keep it cool, dry and sealed — moisture is what causes clumping. Decanting a few weeks' worth into a smaller airtight container keeps the main tub sealed and gives you something gym-bag sized.

Frequently Asked Questions

How many serves in 1.8KG?

60 serves at 30g.

Is the formula the same as the 900g?

Identical. Only the tub size and price per serve change.

Will it go off before I finish it?

At one shake a day you'll clear it in two months, comfortably inside shelf life. At a few shakes a week, buy the 900g.

Is it lactose free?

Not entirely, but very low. Cross-flow ultra-filtration removes most of it. Mild intolerance is usually fine; a dairy allergy is not.

Can I mix it with milk?

Yes, though water suits isolate best — it's what keeps the macros lean and the texture light. Milk adds calories and body if you're not restricting.