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
Everyone's right,
you do need
more fibre.
Most fibre powders ferment fast and leave you bloated. This one ferments slowly, feeding the bacteria that keep your gut working.
$64.00$79.99
Get Gut Support – 20% offApplied automatically at checkout60-day money-back guarantee · Next-day Auckland dispatch
$64.00$79.99
Get Gut Support – 20% offApplied automatically at checkout60-day money-back guarantee · Next-day Auckland dispatch
7g therapeutic dose
Monash Low FODMAP Certified™
Third-party tested
GMP-certified facility
Ten grams short, seven closed in one glass.
The fibre gap
Most people are about 10g of fibre short, every day.
Fibre is finally getting the attention protein has hogged for a decade, and the numbers behind the noise hold up. NZ guidance sits around 25g a day for women and 30g for men. Most people land closer to 15g.
That missing 10g is where the benefits live: regularity, steadier blood sugar after meals, appetite that stops nagging, and a better-fed gut microbiome. One scoop of Gut Support carries a full 7g therapeutic dose of soluble fibre.
One scoop closes most of your daily gap.
Slow fermentation: the prebiotic payoff without the gas spike.
Why fibre backfires
The bloating comes from how fast fibre ferments.
Read past the trend's headlines and every dietitian gives the same warning: increase fibre quickly, especially the fast-fermenting kinds in most gut powders, and the fermentation outruns your gut. Gas builds fast, bloating follows, and people quit inside a week convinced fibre "doesn't agree with them".
The problem was never fibre. It's the speed of fermentation. Sunfiber® is partially hydrolysed guar gum, a soluble fibre that ferments slowly and steadily along the gut, feeding your good bacteria at a pace a sensitive gut can keep up with.
And because gentleness is a claim anyone can print, ours is certified: Monash University created the low-FODMAP system, and this formula carries their certification.
Same fibre payoff. None of the blow-up.
Nothing in here for a sensitive gut to react to.
If your gut reacts to everything
Built for the people fibre has burned before.
If a "gut-friendly" powder has left you bloated, urgent or worse, you're the reader this formula was chosen for. Sunfiber® has been studied in clinical trials for constipation, for loose stools, and in people with IBS. It regulates toward normal, not toward one extreme.
The sweetener follows the same logic: monk fruit, with no sugar alcohols, the quiet trigger hiding in most "gut-friendly" powders.
Gentle was the whole point of choosing this fibre.
What to expect
A daily fibre, not a laxative. It builds.
Honest timelines keep customers. Here's the pattern our reviewers describe.
Days 1–7
It slots into the morning
One scoop in water, mixes clear. Your gut adjusts quietly; no gas spike to push through.
Weeks 2–3
The rhythm shows up
Bathroom visits get more regular and more predictable, in whichever direction yours needed.
Week 4 onward
You stop thinking about it
Daily fibre intake sits where the guidance says it should, without renegotiating every meal.
Made in a GMP-certified facility, every batch third-party tested.
Why it costs moreMost fibre powders are
Most fibre powders are
formulated to a price
point. Not to a result.
That's why so many add a token sprinkle of fibre, pad the tub with cheap filler, and leave you feeling nothing, or worse, bloated.
We do it the other way around: the full 7g therapeutic dose the research actually used, real Black Elderberry extract alongside it, and nothing padding the tub.
You're paying for the dose that closes the gap.
20% offyour first order
Gut Support
4.7/5 · 30 reviews
$64.00$79.99SAVE $15.99
$2.13 per serve · one-month supply
- Slow-fermenting fibre, chosen so closing the gap doesn't mean gas and bloating
- GMP-certified facility, every batch third-party tested
- Monk-fruit sweetened, no sugar alcohols, no fillers
60-day money-back guaranteeNext-day Auckland dispatch
The verdict
Available in 150+ stores nationwide.
Real reviews, from real Biosphere customers. Read them for yourself below.
Customer Reviews
Overall rating: 4.8 / 5 from 1636 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 :)
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.
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
60 days to feel the difference, or your money back.
Give it a proper daily run. If your gut isn't in a better place after up to 60 days, email us and we'll refund you. The risk is ours, not yours.
Straight answers
Before you start
How quickly will I notice results?
It's a daily fibre, not a laxative, so it builds rather than hitting overnight. Most people feel the difference within two to four weeks of taking it every day. Consistency is the whole game.
Can I take it alongside my medications or other supplements?
Soluble fibre is food-based and widely used daily. As with any supplement, if you take prescription medication or manage a health condition, run it past your GP or pharmacist first; taking fibre a couple of hours away from medication doses is a common-sense habit they may suggest.
How much fibre do I actually need?
NZ guidance sits around 25g a day for women and 30g for men, and most people land closer to 15g. That shortfall is the gap this closes.
Can't I just eat more vegetables and wholegrains?
You should, and food comes first. This is a top-up, not a replacement: one scoop adds 7g without another plate of food, which is the piece most people can't consistently close through meals alone.
Fibre has bloated me before. Why would this be different?
That reaction comes from fast-fermenting fibres flooding the gut with gas. Sunfiber® ferments slowly, and the formula is certified low FODMAP by Monash University, the researchers who created the FODMAP system. It's built for the gut other fibres upset.
What's it sweetened with?
Monk fruit extract, which is low FODMAP, with no sugar alcohols (no erythritol, sorbitol or xylitol), a common trigger for the exact bloating you're avoiding.
Skip the bloat. Get your gut back on track.
A full 7g therapeutic dose of slow-fermenting fibre, plus Black Elderberry. Certified gentle enough for a gut that reacts to everything else.
60-day money-back guarantee · Next-day Auckland dispatch