Omega-3 in the form your cells are built from.
Rejoin Antarctic Krill Oil
2,000 mg krill oil a day — four times a typical bottle
420 mg EPA + DHA, phospholipid-bound
60 capsules · 30-day supply
No fishy repeat
In stock now. This run ships today.
June 30th
$8.00 SOLD OUT
July 31st
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September 1st
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IN STOCK
Batch 4 price — $18.00This batch only. Batch 5 is $23.00.
Batch 5 — ships October 19th
$18.00 $23.00 · 4 weeks later
Every bottle is covered by our 90-day money-back guarantee — opened bottle included.
Feel Better or It's Free
A full 90 days — because omega-3 takes twelve weeks to judge, not thirty days. Send the bottle back opened. We don't need the rest of it. Every cent refunded. No hassle. No questions asked.
90-day guarantee
Free shipping on Buy 2 Get 1 Free
What people actually noticed
Movement, not pain scores. Stairs, first steps, getting off the floor — the things you'd notice yourself.
I've tried all the supplements and none of them helped me
Glucosamine, turmeric, the collagen everyone swears by. I only read about this one because it wasn't the same thing again — it was about the form the omega-3 comes in and whether your body can actually use it. That was a new argument to me and I've heard most of them. Ten weeks in and I get out of the car without the little pause I'd started doing. Small thing. It's the first one of these I've reordered.
The first few steps aren't a negotiation anymore
My left knee just didn't fire right away. I'd take a few steps stiff because it wasn't warmed up, then it would go back to normal, every single morning. Started this in the spring and the warm-up is shorter now. I get up and go. That's the whole review, and if you've had that morning shuffle you'll know why it's worth writing.
I'd taken fish oil for years and felt nothing at all
I had fish oil in the cupboard for probably four years and never once felt a difference. I assumed omega-3 just didn't do anything for me. Turns out the question was whether the form my body was getting it in was one it could actually use. Four stars only because it isn't fast — you need to give it a couple of months before you judge it. Once I did, the stairs and the kneeling got easier.
Stairs. That's the review.
I don't think about the stairs before I get to them anymore. Three months. Stairs. That's the whole thing.
My doctor's whole attitude was, you're 55, it's gonna hurt
I guess I wasn't in enough pain to be taken seriously. I certainly wouldn't accept old equals always sore, so I read everything I could find myself. This was the first thing that explained a mechanism to me like I was capable of following it, instead of telling me to lose weight and come back in a year. Three months on and I'm moving around my own house more easily.
Maybe it's this, maybe it's not, but I'm staying on it
Honest answer, I can't fully separate it out — I changed two things at once, this and walking the dog further. What I can tell you is I can get down on the floor with the grandkids and get back up without the whole production number, and six months ago I couldn't. Four stars because I want to be straight with you about what I know. I'm still buying it.
I can tell you what doesn't work
I can tell you what doesn't work, I've got a cupboard full of it. This one I've reordered twice. That's my actual review.
Bye bye to hiking and dancing, or so I thought
No more hiking, dancing, or even browsing the mall with my girlfriends without my knees ruining the day. That was my last two years and I'd more or less made peace with it. I'm about four months in. I'm not dancing all night, let's be real, but I did the whole outlet mall with the girls last month and I wasn't the one asking to sit down.
Your Knees Aren't Wearing Out. They're Starving.
Stiff first thing. A knee that needs a few steps before it trusts you. You've been told it's your age.
And you've done the work. The physio. The stretching. The strengthening, losing the weight. The glucosamine, the turmeric, the fish oil that's still in the cupboard. It's still there in the morning.
A joint isn't only a machine. It's also a material.
The cartilage and the fluid around it are built largely out of the same fat that lines every cell in your body — and that fat is meant to carry omega-3. So you can strengthen the muscle around a knee for a year and never once put anything back into the knee itself.
Age explains when it started. It doesn't explain what's missing.
Four times a typical bottle
Most krill oil gives you 500 mg in a single capsule. This is 2,000 mg in two. Check the back of whatever you own now.
The form your cells use
Fish oil goes through you. This one goes in. Krill's omega-3 is already bound to phospholipids — the same thing your cell walls are made of, so there's nothing to convert.
What easier actually looks like
Standing up from a desk without three steps to sort itself out. The stairs without a hand on the rail. Getting off the floor without grabbing the furniture.
Nothing repeats on you
No fishy aftertaste. That's the reason most people quit before it ever works.
The same stiffness, at night
A stiff knee doesn't switch off when you lie down. It's what makes rolling onto that side register at three in the morning. One problem, not two.
Read the back of the bottle you own now
Most krill oil is one capsule. 500 mg. That is the number the category quietly settled on, and it is not much.
Read the back of the bottle you own now
Most krill oil is one capsule. 500 mg. That is the number the category quietly settled on, and it is not much.
500 mg
What a typical krill oil gives you in a day
2,000 mg
What's in a Rejoin serving — four times a typical bottle
That's why it's two capsules and not one.
Why the last bottle did nothing
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Your cell membranes are built out of fat. That fat is meant to carry omega-3. Most people's doesn't.
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Fish oil delivers it as a triglyceride your body has to convert first. Most of it never gets converted. You paid for it and it left.
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Krill delivers it already joined to phosphatidylcholine — what the membrane is made of. Nothing to convert.
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A joint is a material as well as a machine. Cartilage and the fluid around it are built largely out of that same fat.
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Which is why mechanical work alone never puts material back in. It was never the half that was missing.
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You can measure the difference. It's called your Omega-3 Index.
Twelve weeks, not twelve days
Week 1–2
Nothing in your knees yet. But the taste that used to come back at lunch — the one that made you quit fish oil the first time — doesn't.
Week 4
Building into your cells. Measurable, not noticeable.
Week 8
The first fair check. You stop pushing off the armrest to get out of a chair.
Week 12
The real test, and what the guarantee is built around. You stop planning your day around your knees.
Week 1–2
Nothing in your knees yet. But the taste that used to come back at lunch — the one that made you quit fish oil the first time — doesn't.
Week 4
Building into your cells. Measurable, not noticeable.
Week 8
The first fair check. You stop pushing off the armrest to get out of a chair.
Week 12
The real test, and what the guarantee is built around. You stop planning your day around your knees.
Not the same delivery
“More milligrams printed on the bottle?” That’s like buying twice the groceries when half of them never make it onto your plate.
Not the same delivery
“More milligrams printed on the bottle?” That’s like buying twice the groceries when half of them never make it onto your plate.
Rejoin Krill Oil
|
Regular fish oil
|
|
|---|---|---|
|
Omega-3 form
|
Phospholipid | Triglyceride or ethyl ester |
|
Converted first
|
No | Yes |
|
Why it's red
|
Natural astaxanthin | Not present |
|
Choline
|
Yes | No |
|
Fishy repeat
|
No | Common |
|
Source
|
100% Antarctic krill | Mixed fish |
Four compounds. One ingredient.
100% Antarctic krill oil (Euphausia superba), 2,000 mg a serving. Four named actives that all resolve to the same place — a joint that moves. Nothing added to make the numbers look better.
Four compounds. One ingredient.
100% Antarctic krill oil (Euphausia superba), 2,000 mg a serving. Four named actives that all resolve to the same place — a joint that moves. Nothing added to make the numbers look better.
280 mg
EPA
Drains the inflammation you've been carrying for years.
140 mg
DHA
Makes standing up stop being a decision.
800 mg
Marine phospholipids
Carries the omega-3 into the joint instead of straight through you.
0.22 mg
Astaxanthin
For the body that still aches two days later. Also what makes the oil red.
Contains shellfish (krill). Not for anyone with a shellfish or crustacean allergy.
Feel Better or It's Free
Omega-3 takes four weeks to build into your cells and twelve to judge. So the guarantee runs the full ninety days, not thirty. Take it properly, and if your mornings are no different, send the bottle back opened. We'd rather you had the time.
Start My 12 Weeks
A full 90 days — the whole twelve-week window
Send the bottle back opened. Keep what's left
Every cent refunded. No questions asked
Feel Better or It's Free
Omega-3 takes four weeks to build into your cells and twelve to judge. So the guarantee runs the full ninety days, not thirty. Take it properly, and if your mornings are no different, send the bottle back opened. We'd rather you had the time.
Start My 12 Weeks
A full 90 days — the whole twelve-week window
Send the bottle back opened. Keep what's left
Every cent refunded. No questions asked
The questions people actually ask
I've taken fish oil for years and couldn't tell it was doing anything.
+
That's the most common thing we hear, and it isn't because you didn't take any.
Fish oil arrives as a triglyceride your body has to convert before it can use it. Most of it never gets converted — you paid for it and it left.
Krill arrives already bound to phospholipids, which is what your cell walls are built from. There's nothing to convert.
I've already done physio, stretching, glucosamine and turmeric. Why would this be different?
+
None of that was wasted, and none of it is something we'd tell you to stop.
But all of it treats the joint as a machine — something to strengthen, loosen or cushion. A joint is also a material. The cartilage and the fluid around it are built largely out of the same fat that lines every cell in your body.
You can strengthen the muscle around a knee for a year and never once put anything back into the knee itself. That's the half this is for.
Why not just buy the cheapest krill oil on the shelf?
+
Read the back of it first. Most krill oil is a single 500 mg capsule a day. Ours is two capsules, 2,000 mg — four times a typical bottle.
Also look at the colour. Krill oil is red because of naturally occurring astaxanthin. Pale oil has had it stripped out, and astaxanthin is part of what keeps the oil from going stale in the bottle.
If a cheaper bottle matches on both, buy it. We'd rather you compared than took our word for it.
Isn't this just fish oil with a markup?
+
Fair question, so here are the numbers.
It's a different ingredient, not a different label — krill instead of fish, phospholipid instead of triglyceride, with astaxanthin and choline that fish oil doesn't carry.
On the three-bottle bundle it works out under a dollar a day. If the last bottle of fish oil you finished did nothing, that one was the expensive one.
Will it repeat on me the way fish oil did?
+
It shouldn't. The fishy repeat people quit fish oil over is largely oil that has started to go off, and the astaxanthin that makes krill oil red is what protects it in the bottle.
It's also the one change you may notice in the first few days — long before anything happens in your knees.
Will it upset my stomach?
+
Take both capsules with food and most people are fine. They're standard softgels, not large ones.
If your stomach is sensitive, take them with the biggest meal of the day rather than on an empty one.
What happens if it doesn't work for me?
+
You send the bottle back opened and we refund every cent. No questions, and you don't need to return what's left.
The window is 90 days rather than 30 on purpose — omega-3 takes about four weeks to build into your cells and twelve to judge fairly. Thirty days would be us marking our own homework.
I take medication. Is there anything I should check?
+
If you're on blood-thinning medication, or you're pregnant or nursing, speak to your doctor before starting — the same advice that applies to any omega-3.
This supports how your body is built. It doesn't replace anything you've been prescribed, and it isn't a substitute for care.
I'm allergic to shellfish.
+
Then this isn't for you. Krill is a crustacean, and no guarantee changes that.
