Bradley Spreadborough
Absolutely loving the Hydroboost carb+! Keeping me fuelled for all my sessions especially the engine pieces!

Fortify VO2MAX makes breathing feel cleaner from your first serve, and one bottle covers a 4‑week block of the training that raises the ceiling.
Legs feel fine. Lungs on fire.
You are fit enough to go faster. The ceiling is how much oxygen your body can take in, deliver and burn each minute.
No. Fortify VO2MAX is completely caffeine free. That means you can take it before evening sessions, stack it with the pre-workout you already use, and skip the spike-and-crash cycle stimulants bring.
Around 30 minutes before training, with water. Interval and threshold days are where the airway and focus support earn their keep.
The menthol airway effect and the focus support are acute, so most people notice breathing feels cleaner from the first serve. The engine itself grows over weeks of training. The formula makes the sessions better. The sessions make you faster.
Yes. Nothing in a bottle replaces VO2 intervals and Zone 2 volume. Fortify VO2MAX is built to raise the quality of that work, and the results compound from there.
Runners chasing target times, hybrid and CrossFit athletes who redline mid workout, team sport players who fade late, and anyone whose breathing gives out before their muscles do.
It is formulated to be taken before sessions, and many of our athletes use it daily across a training block. If you have a medical condition or take medication, check with your health professional first.
Signing up subscribes you to our emails. Privacy policy.
Every rep and every stride runs on the same supply chain. Air comes in, oxygen rides your blood to the muscle, and mitochondria burn it for power. VO2 max is the width of that pipeline. When demand passes it, the debt gets paid in acid, heart rate and panic.
Intake: Air moves through your airways into the lungs. Tight, irritated airways mean every breath delivers less than it should.
Delivery: Oxygen loads onto red blood cells and travels to the working muscle. Circulation and hydration decide how fast it arrives.
Burn: Mitochondria combine oxygen with fuel to make clean, aerobic power. More mitochondria and more fuel access mean more watts.
The ceiling: Demand passes supply. Lactic acid builds, heart rate spikes, focus fogs and pace drops. That moment is the bottleneck.
Six ingredients, one pipeline
We formulate and make Fortify VO2MAX ourselves in Brisbane with European and Australian ingredients. Questions about the formula come straight to the people who built it.
Made by Ascend
Ascend products are made by our own team in Brisbane, Australia using European and Australian imported ingredients, not outsourced to anonymous third-party brands.
Australian made by the team behind Ascend.
Built by founders who care about what goes into every serve.
Tested and trusted by athletes who put performance first.
Ascend Journal
Product education, training context, and performance insights selected for this product.
This product is new, so here are recent published reviews from across the store.
Showing 9 of 12 store reviews
Absolutely loving the Hydroboost carb+! Keeping me fuelled for all my sessions especially the engine pieces!
Love the passion punch flavour
Great product with a great taste.
Love it
Love this, keeps my water cold whilst I work and then do my workout so I can mox my protein
The best dairy free protein i have tried!
This is the best pre ive ever had i highly recommend this product
I've tried plenty of protein powders, and most taste like they're part of the workout. 😂 This one is easily the best I've ever tasted. It mixes smoothly, has no chalky aftertaste, and I actually look forward to drinking it. My only mistake was not buying a bigger tub!
Absolutely love this powder, it's the best tasting one I've come across and being dairy free means absolutely no digestion issues. I've been mixing it into my yogurt every day for ages and still love the taste.
Complete your stack
Pair this with products selected to work well alongside it.