Your joints used to just work. Now they need a minute.
The stiffness that comes back every morning has a cause,
and most joint supplements aren’t aimed at it.
Ships from Auckland
Ships from Auckland
Third-party tested
Made in Auckland
Next-day Auckland dispatch
01
The wait for your knees to cooperate. The ache after gardening. The walk you cut short. Free radicals build up in the joint over time and trigger chronic, low-grade inflammation. That’s the mechanism recent research links to the pain, stiffness and loss of function in osteoarthritis.
02
Glucosamine, fish oil and turmeric aren’t bad. They target cushioning and lubrication, and for some people that helps. But if inflammation is what’s driving your stiffness, cushioning alone won’t solve it. You need something aimed at the oxidative damage that starts the cycle.
03
It’s the molecule that makes salmon pink and protects their muscles through the swim upstream, and millions of people across Japan have taken it daily for twenty years. Published research puts its free-radical neutralising power at 6,000 times vitamin C, 550 times vitamin E and 800 times CoQ10. And it stays protective at high concentrations instead of flipping, the way many antioxidants do.
Free-radical neutralising power, relative to vitamin C
04
71 adults with knee osteoarthritis, randomised, double-blind, placebo-controlled. The astaxanthin group’s pain scores dropped, physical function improved, and two markers of inflammation in their blood both reduced. The placebo group showed no significant change. A second trial in rheumatoid arthritis, at a higher dose, saw inflammatory markers and disease activity improve in the same eight weeks.
Knee osteoarthritis trial, 2025
12 mg a day, 8 weeks
Verified Astaxanthin review
★★★★★
"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 a few joint replacements so always in pain. Thank you"
Astaxanthin is fat-soluble. Swallow it dry and most of it passes straight through. Each softgel suspends it in olive oil with phosphatidylcholine, so it’s absorbed rather than wasted.
Per softgel. Two softgels with breakfast is the 12mg daily dose.
From Haematococcus pluvialis microalgae, solvent-free CO2 extraction. Two softgels give you 12mg.
A phospholipid that significantly enhances uptake of fat-soluble antioxidants.
Stabilises the formula and adds its own antioxidant support.
The fat carrier. It's why this is a softgel and not a dry tablet.
Overall rating: 4.8 / 5 from 1666 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 :)
Sleep so much better and no more cramps
I won't need to ask for my money back. It works! The quality of my sleep has improved 10 fold.
Helps me stay asleep all night long
Prompt delivery and high quality. Noticed my eyesight not troubling me as much within a week.
It was a tough winter but this Biosphere Immune got us through.
I began taking this product 2 weeks ago to help with my sleep due to RLS and aching muscles due to injuries. Its great. I fall asleep well and sleep longer. I love the lemon lime flavour too!
Great quality astaxanthin and an easy addition to my daily supplement routine. I take it for its antioxidant, skin and general healthy-ageing benefits. Simple, well-dosed and no fuss. Very happy with it.
Awesome product!
Love it
Really like the flavour and taste, it encourages me to use it daily !
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 love this product. I noticed an improvement in my skin. Looks and feels so much smoother.
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.
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.
12mg of astaxanthin a day, from microalgae, extracted without solvents, carried in olive oil so it’s absorbed. Manufactured in a GMP-certified facility in Auckland. Third-party tested every batch.
It costs more than a bottle of dry astaxanthin tablets. It should. It’s a different product.
Take it for 60 days. If your joints don’t feel different, get every dollar back. No questions, no hoops to jump through.
Refund processed promptly via the original payment method.
What people ask before they try it.
The knee trial measured at eight weeks, and the benefit builds rather than switching on. Give it the full eight weeks at two softgels a day. The guarantee runs 60 days so you can do that without risk.
Yes. It comes from Haematococcus pluvialis microalgae, the same source wild salmon get it from, grown in a closed system with clean water and natural sunlight and extracted without solvents using CO2. Synthetic astaxanthin, made from petrochemicals, is a different mix of molecules and is mostly used to colour farmed fish. There is none in this product.
No need. They work through different mechanisms, cushioning and lubrication mainly, and they complement astaxanthin rather than compete with it. Astaxanthin works on the oxidative stress and inflammation underneath. Keep what’s helping and add this.
Yes. Up to four softgels (24mg) a day is within the ranges used in published research, and some customers take more for joint support. Start at two with breakfast and see how you go.
Astaxanthin is well tolerated, with no serious adverse events reported in published studies. If you are on blood-thinning medication, check with your doctor first.
No. The astaxanthin itself is from microalgae, but the softgel shell is gelatin, so it isn’t suitable for strict vegans.
