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
Blood pressure & heart support
Get 20% Off Your First Order
Your blood pressure reading came back high.
There's a reason your readings have crept up with age. And there's something you can do about it that your GP may not have mentioned.
60-day money-back guarantee
Get 20% Off Your First Order
60-day money-back guarantee
Full therapeutic doses
Third-party tested
GMP-certified facility
Next-day Auckland dispatch
How it works
Why your readings climbed.
01
High readings usually come back to one thing.
As blood pressure rises, it typically traces to this: your blood vessels have stiffened and narrowed, so your heart has to push harder to move blood through them.
02
Nitric oxide is the off-switch for that tension.
Nitric oxide is the molecule your body uses to tell those vessels to relax and widen, which is how it keeps blood pressure in a healthy range.
03
The catch: you make less of it as you age.
Your body's nitric oxide production peaks early in life and declines from there. Less nitric oxide means less of that natural signal telling your vessels to relax.
04
This gives your body what it needs to make more.
Biosphere Nitric Oxide supplies the raw materials your body uses to produce more of its own nitric oxide, supporting the vessel function behind healthy blood pressure.
Save20%on your first order
4.7/5 from 193 verified reviews
Biosphere Nitric Oxide
Twice-daily formula · Cardiovascular support
- Six clinically dosed ingredients to support nitric oxide production
- 60 servings · one scoop in water, morning and evening
- Naturally flavoured peach mango. No fillers, no artificial sweeteners
$72.00$89.99SAVE $17.99
About $2.40 per day. NZD.
60-day money-back guarantee
Next-day Auckland dispatch
Full transparency
Exactly what's in it. Every dose on the label.
No proprietary blends. No hidden amounts. Here is the whole formula, and what each part does.
2000mg
per serving
L-Citrulline Malate 2:1
The main building block your body uses to make nitric oxide.
1000mg
per serving
L-Arginine
Works with citrulline to produce nitric oxide on demand.
500mg
per serving
Taurine
Supports the heart muscle and healthy heart rhythm.
500mg
per serving
Hawthorn Berry Extract
A traditional cardiovascular herb that helps vessels relax and widen.
300mg
per serving
Vitamin C
Protects the nitric oxide you produce from breaking down too fast.
200 IU
per serving
Vitamin D
Supports nitric oxide production in the vessel lining.
The strongest signal a supplement is working isn't a review. It's whether people buy it again.
72%
reorder within 90 days
Customer Reviews
Overall rating: 4.8 / 5 from 1640 reviews.
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 it
My husband and I have both been taking Biosphere Nitric Oxide, and we’ve been really happy with how we feel since starting it. We both feel so much better overall and have noticed a real difference in our general well-being and energy. It’s now become part of our daily routine, and based on our personal experience, we’re very pleased with it. It’s not often that we find a product that we both feel has made a noticeable difference, but this one has. We’ll definitely continue taking it!
Another one bites the dust! I’m really benefiting from taking this product every evening. I’m sleeping through the night, and waking refreshed. I would recommend this to anyone as a fuss free, easily digestible form of magnesium for settling your nervous system and allowing good sleep patterns.
Really like the Biosphere Magnesium. It's so helpful before and after hard physical work when I tend to get plagued with cramp. Alongside other salts & good hydration it's been great .Also very pleasant to drink. My wife also likes to use it at night for restless legs & to help relax. 😊
I have systemic health issues and this is great for sleep, nerves and digestion (in a slow moving system). Great combination of types of magnesium. Easy to mix and take.
Great product. I take it every morning 🙂
Having parkinsons disease, exercise is very much my medication but has consequences the magnesium helps with the cramps and sleep quality which makes tomorrow better.
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
It’s one of those things that you don’t you don’t know what you’ve got ‘til it’s gone! I was sleeping well and didn’t notice my gym recovery was good until I ran out of magnesium! Without it, my sleep is terrible and I’m sore for days after working out. Ordering more now!
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.
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.
Six clinically dosed ingredients. Therapeutic amounts of each. USA-sourced raw materials. FDA-regulated facility. Third-party tested every batch. No fillers. No hidden blends. No corner-cutting.
The only risk is not trying 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
- Refund processed promptly via the original payment method
What people ask before they try it.
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 weeks for measurable improvements. Like all supplements, it works best when taken consistently as directed (twice daily, before meals).
Can I take this with my blood pressure medication?
Yes many customers use Biosphere Nitric Oxide alongside their medication.
Make sure to keep an eye on your blood pressure as they both work in the same direction.
If you are taking medication, it is always a good idea to consult with your doctor and let them know what supplements you're adding.
Why two doses a day?
Nitric oxide doesn't stay in your body for long. One large daily dose creates a brief spike followed by hours of low levels. Two smaller doses, morning and evening, support steadier nitric oxide availability throughout the day. That's the level of support your cardiovascular system actually benefits from.
Here's what you're getting
Everything you need. Nothing you don't.
$72.00$89.99SAVE $17.99
- 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
