4 things to know about your blood pressure and nitric oxide.
- 60-day money-back guarantee
- Third-party lab tested
Nitric oxide is the molecule that tells your blood vessels to relax.
It's a tiny molecule that signals the inside of your blood vessels to relax. Vessels relax, blood moves through with less resistance, the number on the cuff goes down.
The inner lining of your blood vessels makes nitric oxide on its own. It releases it minute by minute, in response to what your body is doing.
Your body makes less nitric oxide every year of your adult life.
Production peaks in your twenties. From there it drops, year after year. By your sixties, levels can be half of what they were in your prime.
Less nitric oxide means stiffer, narrower vessels. Less room for the same volume of blood. Your heart works harder. The number goes up.
This isn't something you did wrong. It's part of how the body ages.
Nitric oxide doesn't only support blood pressure. It supports everything that depends on blood flow.
Your heart works easier when vessels relax. Your brain gets more oxygen when blood moves freely. Your hands and feet stay warmer. You recover from exertion faster. The fog after a heavy meal lifts sooner.
Blood pressure is the most measurable benefit. It's not the only one.
Your body uses specific building blocks to make nitric oxide. You can give it more of them.
Some of those building blocks you can get from food. Beetroot, leafy greens, citrus. Exercise helps too, by stimulating the lining of your vessels.
What food can't reliably deliver is the clinical doses. The amounts research has tied to actual changes in nitric oxide production. That's where supplementation comes in.
What proper nitric oxide support actually looks like.
The supplement industry runs on cheap forms, fractional doses, and good marketing. Most products are formulated to a price point, not to a result. That's why most people don't feel anything when they take them.
What makes this one different:
72%
of our customers come back for more within 90 days.
The strongest signal a supplement is doing something isn't a review. It's a reorder.
Customer Reviews
Overall rating: 4.8 / 5 from 1620 reviews.
Astaxanthin is vital for us all in this aging process. Every blessing we can get for all round health and optimal function is a bonus. We are grateful for the bioavailable source. Regards Steve and Fiona
I have tried many supplements over the years. Some I’ve stopped using because I didn’t notice a difference. I Will always aim to keep astaxanthin as part of my stack. I have noticed such an amazing change in my skin. My skin has always been good, but this has taken it to another level. I love this product! I particularly love the Biosphere brand as they use olive oil in the capsules, rather than seed oils. Really happy to support this NZ company.
Great product, I have been using it to help my eyes feel more comfortable ( post menopause) , they are definitely less scratchy than they were! I can’t wait to try the magnesium yet, it looks really good.
We both have the best sleep usimg this product. I am about to put in another order.
Lovely flavour and works really well.
I rely on 'Sleep' to help my sleep. Its a vial part of my evening ritual. I notice when I dont take it
Great for dry eyes. Best I've tried
Take this every night for restless legs and sleep . Alternate between the 2 flavours
Very good product but I did have to adapt it. I found taking it just before bed it would give me a hit of energy. So I no take it with dinner or just after around 7 and it gives my body time to process the ashwaganda. I still do have trouble sleeping but I do feel the nights I do sleep it’s a deeper sleep. I am going through a lot of stress and biological changes but I do feel it has helped just not as much as I hoped. The flavour is delicious and the customer service was awesome. I’m going to try the plain magnesium next time as I think ashwagandha not well suited to me
Great product - slept soundly :)
Love this product, after my first month I have far more mobility, energy and stamina, will be purchasing more...
I haven't gotten my very first bottle yet, but I will be ordering more. Capsules are easy to swallow, and makes it easy that need to take with food . Easy to remember with breakfast
On my second month of astaxanthin, not much change except a little more energy generally. Will give it a full three months.
I am so happy with my Astaxanthin . Can’t believe that it has worked so quick at pain relief . I have tried lots of other products in many years and I think this is the best thing I have tried . I have no pain and it so good . I hope this keeps up I have arthritis and and a few joint replacements so always in pain . Thank you
Awesome flavour magnesium for a massive day in the mountains!!!
Both flavours are nice and the powder mixes well. No longer getting night time cramps, so very happy with this. Will definitely be continuing with this product.
Awesome product.
I've been taking Biosphere Nitric Oxide for just over 5 weeks now. Before I started my blood pressure was in the 140s/150s/ 90s. This month I have only had one spike and my daily readings are consistently lower with some now in the ideal or normal range. I am really pleased with this result so far.
Ive been taking these now for a little over a month an just love the way my skin feels, an how its helped me not getting any flu this winter . As a shift worker doing 12 hr shifts I think its really been a great help getting me thru the day. I highly recommend them.
This magnesium is almost magic, I have had hip pain for several years and 5 weeks in it had totally gone. Unfortunately its a little hard on my stomach so have had to cut down the dose to half, I can just feel my hip pain a little again with the half dose. I will try supplementing the half dose with Astaxanthin next order.
I was getting regular muscle cramps at night and in the 30 days I trialled Biosphere Magnesium I only got a cramp once or twice. Since then I tried another brand of magnesium but haven't had the same success. Mixes easily and the lemon-lime flavour I tried us pleasant to drink.
I’ve been taking Bio sphere Nitric Oxide for a couple of years now as part of my supplement protocols. I workout at the gym and also do a lot of breathwork and this compliments everything I do.
It tastes good, easy to use, and I've halved my blood pressure tablet. It seems to be working for me and I intend to remove the blood pressure tablet totally in a week or so. It's coming on holiday with me!
Take it with my morning decaf that has coconut milk - so I am taking 2 capsules with some fats. Recently had people commenting on how nice my skin is looking. I am 60yo and recovering from cancer treatment.
Really happy with the magnesium powder, mixes well, tastes great and is now part of my daily routine.
Perfect start to my day…great flavour and definitely an improvement showing in my blood pressure levels!
The lemon/lime Magnesium powder is delicious and refreshing. It certainly is helping reduce cramps and helps me get to sleep quickly and sleep for longer periods.
I take magnesium after the gym to help with cramp.
Onto my first jar and already have a back up ready to go. Tastes delicious . Even bought a new bottle to use .
My husband is slowly reducing his blood pressure medication by using Nitric Oxide. Blood pressure is finally reducing
Been taking Astaxanthin for about 6 weeks now and definitely notice my eye and skin health is better, also seem to have a bit more energy.
A nightly routine, super power sleep when I take the magnesium - such a distinctly better sleep than nights I don’t take it.
I’ve recently changed to Biosphere Magnesium and will be reordering. It is so easy to take and adjust the amount as needed. I particularly like the Mango Pineapple flavour and take it just before bed to stop leg cramps.
Great product
I have this in the morning. Great tasting and refreshing. Great start to the day
I have found this the only product, after many years of finding something to help my sleep. My sleep for past 13 years been erratic due to menopause and hectic life. I have used this for a month now with only a couple of bad nights sleep. I sleep through until 5.00am. Hallelujah. Thank you Biosphere. Great product. Also just started using your hydrate supplement. I'll see how that goes over next month too.
I've been forgetting to wear my prescription glasses, it's been 3 months. My hair is a little darker, my nails are stronger and my skin has a summery glow. Hoping for some relief to my joints....
Easy to take and Good value for money!
The longer I take these the better I have been feeling
I started using astaxanthin on 13 May 2026. I live with chronic inflammation that often leads to headaches and migraines, and since beginning the supplement I’ve noticed a meaningful shift. My baseline inflammation feels lower, and the frequency and intensity of my headaches and migraines have reduced. Another unexpected change has been with my eye floaters. They used to be a daily nuisance, but over the past weeks they’ve improved noticeably. This is simply my personal experience and not a medical conclusion. Yet the changes have been significant enough for me to share.
Biosphere Nitric Oxide
Less than $2.40 per day. NZD.
- Six clinically dosed ingredients to support nitric oxide production
- USA-sourced raw materials. GMP-certified, FDA-regulated facility. Third-party tested every batch.
- Naturally flavoured peach mango. No fillers, no artificial sweeteners.
- Designed for cardiovascular support.
60-day money-back guarantee
Next-day Auckland dispatch
The only risk is not trying.
It took decades for your body to get here. It's going to take real commitment to turn it around.
Exercise more. Eat better. Sleep more. Get sunlight. All of these help, and many of them feed nitric oxide too. This product is one piece of the plan, not the whole plan.
If you're going to do this, do it properly. Throw everything at it.
Take it for 60 days. If you're not feeling steadier energy, better circulation, or improved blood pressure readings, get every dollar back. No questions, no hoops to jump through.
- No questions asked
- No need to return the tub
- Refund processed promptly via the original payment method
Questions worth asking before you start.
Can I take this with my blood pressure medication?
If you are on prescribed blood pressure medication, please consult your GP before adding any supplement to your routine. Many customers use Biosphere Nitric Oxide alongside their medications with medical supervision, but a quick conversation with your doctor first is always the right call.
How fast will I notice a difference?
Most people notice steadier energy and better circulation within 2 to 4 weeks of consistent use. Blood pressure changes typically take longer: research suggests 4 to 8 weeks for measurable improvements. Like all supplements, it works best when taken consistently as directed (twice daily, before meals).
- 1 tub of Biosphere Nitric Oxide · 60 servings (30 days at twice-daily dosing)
- 20% off your first order, no code needed
- Next-day Auckland dispatch on every order
- 60-day money-back guarantee, no questions asked
