Dymatize ISO100 Hydrolysed Whey Protein Isolate

Dymatize ISO100 is a hydrolysed whey protein isolate, one of the most popular protein powders in the world. Each scoop gives you 25 g of protein, 5.5 g of naturally occurring BCAAs and about 120 calories, with less than 1 g of sugar and just 0.5 g of fat. Because the whey is hydrolysed (pre-broken down), ISO100 digests fast and mixes smooth in water or milk. Choose a 640 g tub (about 20 serves) or a 2.3 kg tub (about 71 serves), in 10 flavours.

Why choose Dymatize ISO100

Dymatize ISO100 is a fast-absorbing protein powder made from hydrolysed whey protein isolate, for maximum purity and minimal digestive stress. Every 32 g scoop gives you 25 g of protein plus more than 5 g of naturally occurring BCAAs to support recovery and help you maintain lean muscle. With under 2 g of carbs, less than 1 g of fat and less than 1 g of sugar per serve, ISO100 gives you a clean protein boost without excess calories or lactose. That makes ISO100 suitable if you’re sensitive to dairy.

Ultra-filtration strips out most of the non-protein parts, leaving a formula that blends smoothly in water or milk and digests virtually instantly. ISO100 is made under strict quality controls and is Informed-Choice tested for banned substances. For athletes, ISO100 is a trusted, fast-acting choice for post-training nutrition and everyday protein needs.

What ISO100 helps with

• Recovery after training: 25 g of fast-digesting protein and 2.6 g of leucine to support muscle repair after a workout.
• Hitting your protein target: an easy 25 g of protein any time of day, from a shake that takes 15 seconds to make.
• Lean diets: about 120 calories, 2 g of carbs and 0.5 g of fat per scoop, so ISO100 fits a cut or a low-carb plan.
• Easier on the stomach: isolate is filtered to remove most of the lactose, fat and carbs found in regular whey, so many people who feel bloated on whey concentrate do better on ISO100.

Nutrition per scoop

Figures are from the Gourmet Chocolate label, with BCAA and leucine figures from Dymatize. Other flavours vary a little: 110 to 120 calories and 24 to 25 g of protein per scoop. Check the label on your tub.

What makes ISO100 different

• Whey protein isolate (WPI): whey that has been filtered more than whey protein concentrate (WPC). Isolate has more protein per scoop and less lactose, fat and carbs.
• Hydrolysed: the protein is partly broken down into smaller pieces before you drink the shake, so your body can absorb ISO100 faster.
• Short ingredient list: hydrolysed whey protein isolate, whey protein isolate, flavour, a little salt and soy lecithin, and sucralose to sweeten. No added sugar and no fillers.
• Banned substance tested: Dymatize tests ISO100 for banned substances, which matters for athletes who get drug tested.

WPI vs WPC: is ISO100 better than regular whey?

Both are good sources of protein. Whey protein concentrate (WPC) costs less and has a little more lactose, fat and carbs. Whey protein isolate (WPI) like ISO100 has more protein per gram and is easier on most stomachs. If regular whey leaves you bloated, or you are counting every calorie, an isolate is worth the extra cost. If you want the best value per serve and whey sits fine with you, a blend like Booty N Buff Lean Protein is a good choice.

Sizes and value

• 640 g tub: about 20 serves. A good way to try a new flavour.
• 2.3 kg tub (5 lb): about 71 serves. Lasts more than two months at one scoop a day and costs less per serve than the small tub.

The 640 g tub is $104.95, about $5.25 a serve. The 2.3 kg tub is $299.95, about $4.22 a serve.

10 flavours

• In both sizes: Gourmet Chocolate, Gourmet Vanilla, Chocolate Peanut Butter, Cookies & Cream, Fudge Brownie, Cocoa Pebbles and Strawberry.
• 2.3 kg only: Birthday Cake Pebbles, Fruity Pebbles and Smooth Banana.

Gourmet Chocolate and Gourmet Vanilla are the classic picks and mix well with milk, coffee or oats. Cocoa Pebbles, Fruity Pebbles and Birthday Cake Pebbles are based on the Pebbles breakfast cereals. Not sure which to pick? ISO100 is covered by our Love the Taste Guarantee. Try up to 5 serves within 30 days. If you don't love the flavour, swap for another or take store credit.

How to take ISO100

Add 1 scoop to 150 to 180 ml of water or milk and shake for about 15 seconds. Use more liquid if you like a thinner shake. Drink ISO100 within 30 minutes after training, before a workout, or any time you need more protein in your day. ISO100 also mixes into oats, yoghurt or a smoothie.

Who should take ISO100?

ISO100 is a good fit for lifters and athletes who train hard, people on a cut who want protein with almost no extra carbs or fat, and anyone who finds regular whey heavy on the stomach. Athletes who get drug tested often choose ISO100 because Dymatize tests ISO100 for banned substances.

ISO100 and creatine

Protein and creatine are the two most common supplements for people who lift, and they do different jobs. ISO100 gives your muscles the protein they need to repair after training. Creatine monohydrate helps your muscles make more of the quick energy they use for short, hard efforts like lifting and sprinting. Take 3 to 5 g of creatine every day, and add the creatine to your ISO100 shake if you like. Creatine has no taste, so the creatine won't change the flavour.

What to take with ISO100

• Creatine: the most common partner for a protein shake. Add 3 to 5 g a day, like Body Science Pure Creatine or Ghost Basics Creatine.
• A pre-workout: for energy before training, try Faction Labs Disorder, then have ISO100 after.
• A protein snack: for days you can't make a shake, keep an Oxyshred Protein Lean Bar in your bag.

Allergens and side effects

ISO100 contains milk and soy. Chocolate Peanut Butter also contains peanuts. ISO100 is filtered to remove most of the lactose, but ISO100 is not lactose free, so people with a strong lactose intolerance or a milk allergy should check with their doctor first. Some people notice mild bloating when they first add a protein shake, so start with one scoop a day and drink plenty of water.

Where to buy Dymatize ISO100 in Australia

Booty N Buff ships ISO100 Australia-wide from our store in Caringbah, NSW. Order by 2pm on a weekday for same-day dispatch. Pick the 640 g tub to try a flavour, or the 2.3 kg tub for the best value per serve.

ISO100, R1 Protein, Isopept or Lean Protein?

• Dymatize ISO100: hydrolysed and regular whey isolate, 25 g of protein per scoop, 10 flavours.
• Rule 1 R1 Protein: another isolate and hydrolysed isolate blend, 25 g of protein per serve, in 2 lb, 5 lb and 10 lb tubs.
• EHP Labs Isopept: hydrolysed whey with 27 g of protein per serve and added digestive enzymes.
• Emrald Labs Iso Zero: an Australian whey isolate with dessert flavours like Churro and Cookie Caramel.
• Booty N Buff Lean Protein: our own isolate and concentrate blend. Better value per serve if regular whey sits fine with you.

Other whey proteins to compare

• Gen-Tec Hydro Pro WPI: 24.1 g of protein and 1.2 g of carbs per 30 g scoop, a blend of isolate and hydrolysed isolate.
• Pillar Performance WPI: grass-fed, 26.4 g of protein per 33 g scoop, sweetened with monk fruit and stevia.
• Primabolics Iso-Ripped V2: 25 g of protein per 30 g scoop, HWPI and WPI, stevia sweetened, with digestive enzymes.
• Switch Nutrition WPI: 25.5 g protein per serve, DigeZyme® enzymes, lactose free, stevia sweetened, 30 serves.

Looking for something else? Browse all our whey protein isolates or every protein powder.