Why Your Joints Still Ache
You used to get up and go. Now you get up, wait for your knees to cooperate, and then go. Slowly.
The morning stiffness. The ache after gardening.
The walks you cut short because something flares up.
You're not old. But your joints are telling a different story.
You've tried things. Glucosamine. Fish oil. Maybe turmeric.
And your joints still ache.
Those supplements aren't bad. They target cartilage cushioning and lubrication, and for some people that helps.
But if inflammation is driving your stiffness, cushioning alone won't solve it.
Here's what's often happening beneath the surface. Free radicals build up in your joints over time. This triggers chronic, low-grade inflammation. It's the mechanism recent research links to the pain, stiffness, and loss of function in osteoarthritis.
Glucosamine doesn't address that. Fish oil helps modestly.
Turmeric has absorption problems that limit how much actually reaches your joints.
There's a different approach.
It's called astaxanthin.
You've probably never heard of it.
But you've seen it your whole life.
It's the molecule that makes salmon pink and flamingos red. It comes from microalgae, the tiny organisms at the base of the marine food chain.
In wild salmon, astaxanthin is what protects their muscles during the gruelling upstream swim to spawn. Without it, they wouldn't survive the journey.
It's one of the most powerful protective molecules in nature.
And for the last twenty years, millions of people across Japan have been taking it daily. It targets the same kind of oxidative damage that drives chronic joint inflammation.
It's been studied in clinical trials on real patients with real joint pain.
Why This Antioxidant Is Different From Anything In Your Medicine Cabinet
Clinically shown to reduce joint pain and stiffness in 8 weeks.
Clinically shown to reduce joint pain and stiffness in 8 weeks.
In a randomised, double-blind, placebo-controlled trial, 71 adults with knee osteoarthritis took either astaxanthin or a placebo for 8 weeks.
The astaxanthin group improved significantly. Pain scores dropped. Physical function scores improved. And two key markers of inflammation in their blood both reduced.
The placebo group? No significant change.
Second trial in rheumatoid arthritis patients confirmed consistent results.
A separate trial confirmed the pattern in a different type of joint condition. 60 patients with rheumatoid arthritis took astaxanthin for 8 weeks. Disease activity scores and inflammatory markers both improved significantly compared to placebo.
Two clinical trials. Two different joint conditions. Consistent results.
The knee OA trial used 12mg per day.
The exact dose in every Biosphere bottle.
Tabassum et al. (2025). 71 adults, 12mg/day, 8 weeks, knee OA. Grigorian et al. (2025). 60 patients, 20mg/day, 8 weeks, rheumatoid arthritis. Both randomised, double-blind, placebo-controlled.
Second trial in rheumatoid arthritis patients confirmed consistent results.
6,000 times more powerful than vitamin C at fighting oxidative damage.
6,000 times more powerful than vitamin C at fighting oxidative damage.
Inflammation starts with oxidative stress. Free radicals accumulate in your joints, triggering the chronic low-grade inflammation behind stiffness and pain.
ANTIOXIDANT POTENCY INDEX
Relative free-radical
Astaxanthin is the single most powerful antioxidant ever measured. Published research puts its free-radical neutralising ability at 6,000 times vitamin C, 550 times vitamin E, and 800 times CoQ10.
Astaxanthin is the single most powerful antioxidant ever measured. Published research puts its free-radical neutralising ability at 6,000 times vitamin C, 550 times vitamin E, and 800 times CoQ10.
Most antioxidants become harmful at high doses. They flip into pro-oxidants and create more damage. Astaxanthin never does this. It stays protective regardless of concentration.
This is the mechanism that makes the clinical results possible. Not cartilage cushioning. Not lubrication. Direct reduction of the oxidative damage driving your joint inflammation.
ANTIOXIDANT POTENCY INDEX
Relative free-radical
The most powerful antioxidant ever measured
Based on published antioxidant potency measurements in peer-reviewed research.
Your body actually absorbs it, and it reaches your joints.
Your body actually absorbs it, and it reaches your joints.
Turmeric’s biggest problem isn’t potency. It’s absorption. Most curcumin passes straight through your digestive system. The same applies to many antioxidant supplements. Fat-soluble compounds delivered without the right carrier simply don’t reach your bloodstream.
Every Biosphere softgel includes a specialised phospholipid and olive oil complex. Published research shows this type of formulation enhances absorption of fat-soluble antioxidants by up to 12 times compared to standard delivery.
The difference between a supplement that sits in your gut and one that actually reaches your joints, eyes, and skin.
Based on published research on phospholipid-enhanced carotenoid absorption.
Based on published research on phospholipid-enhanced carotenoid absorption
Your joints feel it first, but your whole body benefits.
When you take astaxanthin for joint comfort, it doesn’t stop there.
Published research covers skin hydration and elasticity, eye health and reduced screen fatigue, and cardiovascular support. A comprehensive review of astaxanthin’s effects across multiple organ systems concluded it offers broad protective benefits. From brain to heart to skin.
When you take astaxanthin for joint comfort, it doesn’t stop there.
Published research covers skin hydration and elasticity, eye health and reduced screen fatigue, and cardiovascular support. A comprehensive review of astaxanthin’s effects across multiple organ systems concluded it offers broad protective benefits. From brain to heart to skin.
One supplement. Two softgels with breakfast. Whole-body protection.
Alugoju et al. (2022). Critical Reviews in Food Science and Nutrition. Comprehensive review of astaxanthin’s multi-organ health effects.
If it doesn’t work, you don’t pay
No fine print. No hoops. Take it for two months.
If your joints don’t feel different, we refund every cent.
Biosphere has sold astaxanthin in New Zealand since 2016. We’re in 150+ stores nationwide. 215 verified reviews at 4.8/5. We can offer this guarantee because the product works.
What Customers Are Saying
What's Inside Every Softgel
Free from gluten, dairy, yeast, corn, soy, sugar, preservatives, and colours.
From red microalgae. CO₂ extracted, no solvents. The most researched natural antioxidant for joint health. Above all published study doses.
Enhances astaxanthin absorption. Also supports healthy nerve cell function.
Astaxanthin is fat-soluble — it needs healthy fat to reach your joints. The delivery vehicle matters.
Stabilises the formula and provides additional antioxidant support.
Encapsulating aids. Softgel shell contains gelatin.
Free from gluten, dairy, yeast, corn, soy, sugar, preservatives, and colours.
How to Take It
Take 2 softgels daily with breakfast or any meal containing fat. That's it.
What to Expect
Give Your Joints the Protection They've Been Missing
- 12mg astaxanthin daily
- Enhanced absorption formula
- GMP certified · Third-party tested
GET 20% OFF YOUR FIRST BOTTLE
"After taking Astaxanthin for 4 weeks 12mg per day the pain in my right shoulder disappeared and my skin moisture and smoothness improved remarkably.""
"I use Astax regularly and really feel like inflammation is reduced and my overall body is lighter and more mobile.""
Frequently Asked Questions
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Clinical studies showed significant improvement in eye strain and focusing ability within 4 weeks. Some customers report less dryness in the first 1–2 weeks.
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60-day money-back guarantee. Email us for a full refund. No questions, no hassle.
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Clinical studies used 4–9mg. At two softgels daily, you’re getting 12mg — above every published study dose. More isn’t always better, but being above the therapeutic threshold matters.
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Different target. Lutein accumulates in the macula (back of the eye) over 6–9 months. Astaxanthin deposits at the front of the eye where focus is controlled, and showed results in 4 weeks. They complement each other.
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A naturally occurring antioxidant from microalgae — it’s what gives salmon their pink colour. Published research ranks it among the most powerful antioxidants ever measured.
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Most Kiwis haven’t — yet. Astaxanthin has been mainstream across Asia for decades. Japan alone accounts for 25% of the global market. It’s newer to NZ but growing fast.
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Yes. Astaxanthin is well tolerated and safe to combine with most supplements. If you’re on blood-thinning medication, check with your doctor first.
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Astaxanthin extracted from microalgae using solvent-free CO₂ process. Every batch independently third-party tested. Manufactured in a GMP-certified,facility in West Auckland.
Remember What It Felt Like to Just Get Up and Go?
No morning stiffness negotiation. No cutting walks short. No avoiding the stairs.
Astaxanthin works through a different mechanism than anything in your medicine cabinet. Backed by two randomised, placebo-controlled trials in patients with joint conditions, using doses at or above what's in every Biosphere bottle. Trusted across Japan for twenty years. Sold in New Zealand since 2016.
Try it for 60 days. If your eyes don't feel different, you pay nothing.