Go regularly again.
Without the bloat.
A gentle, low-FODMAP prebiotic that gets things moving, without the gas and bloating other fibres leave you with.
30 servings · one scoop a day
Get Gut Support →20% off applied automatically
30 servings · one scoop a day
Get Gut Support →20% off applied automatically
7g therapeutic dose of Sunfiber®
Low FODMAP Certified
Third-party tested
Next-day Auckland dispatch
You go every two or three days. When you do, it's a strain.
By the afternoon you're bloated, and your waistband feels tighter than it did this morning.
So you did the sensible thing: you added more fibre. And somehow it made everything worse. More gas. More bloating. More discomfort.
You're not doing it wrong. You're taking
the wrong kind of fibre for a sensitive gut.
Why fibre backfires
More fibre isn't the problem. The type of fibre is.
Most fibres ferment fast once they hit your gut. That fast fermentation produces gas quickly. On a sensitive gut, that's the bloating and cramping that makes people quit within a week.
The fibres in a lot of supplements are the fast-fermenting kind. Coarse bran fibres are rough on the gut wall. Neither is built for someone who already reacts to what they eat.
The fix isn't less fibre. It's a slower, gentler fibre: one that feeds your gut without flooding it with gas.
That's exactly what Sunfiber® is.
The fibre inside
Sunfiber® gets things moving. Gently.
It's a soluble fibre (partially hydrolysed guar gum) that ferments slowly. It feeds your good bacteria without the gas. And it works in both directions.
If you're backed up
It softens and regulates, so going becomes easier and more predictable.
If you're loose
It firms and slows things down, so your gut stops running the show.
Sunfiber® has been studied in clinical trials for constipation, for loose stools, and in people with IBS. It moves your gut toward normal, not toward one extreme. And it's certified low-FODMAP by Monash University, the people who created the FODMAP system.
The honest part: this is a daily fibre, not a laxative. It works gradually, not overnight. Most people feel the difference within two to four weeks of taking it every day.
Gut Support
30 servings · one scoop daily · Elderberry flavour
- 7g therapeutic dose of Sunfiber® per scoop
- 500mg Black Elderberry for gut-immune support
- Low FODMAP certified for sensitive digestion
- No fillers, no additives, no sugar alcohols
- Third-party tested, made in a GMP-certified facility
What's inside
Two ingredients. Both doing real work.
No filler list. No proprietary blend hiding the doses. Just two actives, at doses that match the research.
Organic Sunfiber®
Partially Hydrolysed Guar Gum
Sunfiber® certified logoRegularity, both ways. A slow-fermenting soluble fibre studied in clinical trials for both constipation and loose stools. It regulates toward normal, not one extreme.
Feeds the good bacteria. A true prebiotic: it selectively feeds Bifidobacteria and butyrate-producing bacteria, without the gas of harsher fibres.
Steadier blood sugar. As a soluble fibre it slows sugar absorption after eating, shown to blunt post-meal blood glucose, supporting healthy blood sugar.
Helps you feel full. It increases satiety after meals, supporting appetite control and healthy weight management.
Black Elderberry Extract
Sambucus nigra
Polyphenols for the gut-immune axis. A concentrated source of polyphenols that support the gut lining and the immune tissue around it. Most of your immune system lives in your gut.
Feeds a keystone bacterium. Research links black elderberry to higher levels of Akkermansia, a beneficial gut bacterium associated with metabolic and gut health.
Everyday immune support. Paired with a fibre studied for reducing cold-like symptoms when taken continuously. It's support you take daily, not a scramble once you're already run down.
Stocked in 150+ stores nationwide.
Real reviews, from real Biosphere customers. Read them for yourself.
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.
Most supplements are formulated to a price point. Not to a result.
That's why so many fibre products underdose the one thing that matters, pad the tub with cheap filler, and leave you feeling nothing, or worse, bloated.
We do it the other way around. A full 7g therapeutic dose of Sunfiber®. Real Black Elderberry extract. No fillers. Third-party tested, in a GMP-certified USA facility.
It costs more to make. We're not going to pretend otherwise, and we're not going to cut the dose to hit a cheaper price.
You're paying for the dose that actually does the work.
60 days to feel the difference, or your money back.
Give it a proper run. Take it daily for up to 60 days. If your gut isn't in a better place, email us and we'll refund you. Love it or your money back. The risk is entirely ours, not yours.
Before you try it
Questions people ask
How long until I notice a difference?
It's a daily fibre, not a laxative, so it builds up rather than hitting overnight. Most people feel the difference within two to four weeks of taking it every day. The customers who stick with it daily are the ones who rave about it. Give it a proper run.
Will it bloat me like other fibres did?
That's the whole point of this one. Sunfiber® ferments slowly, which is what avoids the rapid gas that causes bloating with faster fibres. It's also certified low-FODMAP by Monash University, so it's specifically suited to sensitive, reactive guts.
When should I take it?
Any time of day that's easy to remember. One scoop mixed into 200ml of water, once daily. Consistency matters far more than timing. Pick a moment you'll actually stick to.
Can I take it every day, long term?
Yes. It's designed for daily use to keep your fibre intake topped up and your gut regular over time. It's food-based fibre, not a stimulant, so there's nothing to build a tolerance to.
Is it really low FODMAP?
Yes. It carries the Monash University Low FODMAP Certified™ mark. Monash are the researchers who developed the FODMAP system in the first place. It's the only product in our range with that certification.
What's it sweetened with?
Monk fruit extract: natural, no calories, and low-FODMAP. No sugar alcohols (no erythritol, sorbitol or the like), which are a common trigger for the exact bloating you're trying to avoid. Natural Black Elderberry flavour, and it mixes clear.
Get regular. Without the bloat.
A full 7g therapeutic dose of Sunfiber®, plus Black Elderberry. The gentle way to a gut that finally behaves.
60-day money-back guarantee · Next-day NZ dispatch