4.4/5 (9K+)
Over 7.0M bottles sold across all AlgaeCal products
The ONLY Natural Way To Increase Your Bone Density
Protect your bones with AlgaeCal’s special formula of 16 powerful nutrients, clinically supported to increase bone density.‡*
Scientists Discover The Real Root Cause Of Bone Loss
(Hint - It’s Not A Lack Of Calcium)
Are you struggling with bone loss no matter how much calcium you take?
A study published in the British Medical Journal, the largest of its kind ever done, found that calcium supplements don’t prevent fractures.
That’s because bone loss isn’t a loss of calcium. It’s a loss of all the minerals that make your bones healthy and strong.
Sure, calcium is one of these minerals. But there are actually 16 different nutrients you need to keep your bones in top shape.
That’s Why We Created…
Nature’s Answer To Fragile Bones
AlgaeCal Plus is the world’s only multi-nutritional supplement clinically supported to increase bone density.
This all-natural product is unlike anything you’ve ever tried or experienced before.
Inside every AlgaeCal capsule you’ll find:
16 Clinically Supported Nutrients to increase your bone mineral density
Calcium
Most calcium supplements are made from crushed up rocks. So they’re hard to digest. But since AlgaeCal is from a plant, it's super absorbable and gentle on your body.
Magnesium
Without magnesium we cannot produce osteoblasts, the cells that create new bone, nor can we activate the enzyme that converts vitamin D into 1,25-D, the form in which vitamin D helps us absorb calcium. So a lack of magnesium means fewer osteoblasts and less calcium - a perfect recipe for fragile bones.
Potassium
By helping to neutralize the acidic pH resulting from the Standard American Diet, potassium prevents the loss of calcium from bone to restore a more alkaline pH, thus conserving calcium within our bones and reducing its loss in urine.
Boron
Boron is a trace mineral essential for the growth and maintenance of healthy bone. Boron helps our bones get the most benefit from vitamin D and our hormones. Boron becomes especially important for postmenopausal women and for men as testosterone levels start to decline after age 50.
Copper
Copper is essential in bone metabolism, activating enzymes like lysyl oxidase that incorporate both collagen and elastin into the organic component of bone.
Manganese
Manganese is critical in the formation of the extracellular matrix–the ground substance to which collagen adheres, and for the development of chondrocytes, the cells that secrete cartilage and become bone building- osteoblasts and eventually osteocytes, which regulate the entire bone renewal process. Without manganese, bone mineralization simply cannot start!
Silicon
Silicon plays a key role in bone formation by stimulating the production of bone-building osteoblasts and the synthesis of type 1 collagen, and by increasing calcium’s incorporation into bone.
Strontium
Scientists have discovered strontium has a unique dual-action on your bones. Strontium inhibits bone resorption while simultaneously stimulating bone growth through more than a dozen mechanisms of action, a true win-win for bone!
Nickel
Nickel can affect the distribution of other nutrients in your body, including calcium. Given the obvious benefit calcium has on our bones, you can see why an adequate level of nickel is critical to maintaining healthy bone!
Phosphorus
Approximately 85% of the body’s phosphorus is found in your bones. It’s fundamental to growth, maintenance, and is necessary along with calcium and magnesium for proper growth and formation of bones.
Selenium
Selenium is the required cofactor for two groups of enzymes intimately tied to bone health: the selenoenzymes, which neutralize bone-destructive free radicals and the deiodinase enzymes, which are necessary for the healthy thyroid function that keeps our bone renewal metabolism running. For these reasons, low selenium can mean decreased bone mineral density.
Vanadium
In one study, vanadium compounds were shown to increase bone formation without any adverse health effects!
Zinc
Zinc is an essential mineral that plays a crucial role in bone metabolism by acting as a cofactor for specific enzymes. But that's not all - studies have found that zinc can also help prevent bone loss, making it a vital nutrient for both men and women, especially those in their post-menopausal years.
Vitamin D3
Vitamin D is vital for your bone health. Without this essential nutrient, your body can't absorb calcium, and that's bad news for your bones.
Vitamin K2-7
You need vitamin K2 because it collects calcium from your bloodstream and directs it into your bones - keeping them healthy and strong. You don't want calcium getting into your soft tissue - where it can cause heart attacks, strokes, and even Alzheimer's.
Vitamin C
Vitamin C helps your body fight the root cause of bone loss. A 17-year study found that a high intake of this vitamin reduced the likelihood of hip and non-vertebral fractures.
+ Strontium Boost
Strontium does something that no other mineral can do.
It naturally accelerates bone-building. Studies show that when you take Strontium Boost alongside your AlgaeCal Plus, you’ll triple your bone density increases. That means you get stronger bones in less time.
Triple your bone density increases
See results in 6 months
Together AlgaeCal Plus and Strontium Boost are called The Bone Builder Pack…
Bone Builder Pack Benefits
Non-GMO
Easy To Swallow
Gentle For Your Body
They Increased Their Bone Density. You Can Too.
AlgaeCal has thousands of stories and reviews from people just like you, who've used AlgaeCal to successfully claim their bone health
"One year of of using AlgaeCal has changed my life"
Verified Purchase
Cherie Mathews
Austin, Texas
"I had a 11.8% increase in the bone density in my hip."
Verified Purchase
Denise McKee
Albuquerque, NM
"My doctor asked me, what is your secret?"
Verified Purchase
Annie Croell
Chatsworth, California
"No side effect, amazing results."
Verified Purchase
Roxanne Cummings
Cope, South Carolina
"My doctor said I should try AlgaeCal."
Verified Purchase
Lisa Reiss
Seldon, New York
"It was as if I was given back 30 years."
Verified Purchase
Mimi Guzeman
Sandy, Utah
Get FREE Shipping On Every Order
96% Of Customers Order A 6-Month Supply (Our Recommended Option)
Claim Your Discounted Bone Builder Pack Below While Stocks Last
Loading...
Stronger Bones For Life Guarantee
You will see increased bone mineral density on every DEXA bone scan you take, starting as soon as 6-months. And in the unlikely event that any scan shows a decrease, you will be refunded for ALL purchases between that scan and the last.
So you either get stronger bones, or your money back.
Frequently Asked Questions
What is AlgaeCal Plus?
AlgaeCal Plus is a plant-based calcium supplement made from a unique South American marine algae called Mesophyllum superpositum. These USDA-certified organic algae are sustainably hand-harvested from the ocean, gently sun-dried, and milled into a fine powder.
Unlike traditional calcium supplements, which are typically derived from rocks like limestone or marble, AlgaeCal Plus is a whole-food source of all 13 essential bone-supporting minerals: calcium, magnesium, manganese, phosphorous, nickel, silica, copper, vanadium, potassium, zinc, boron, selenium and strontium. And because it comes from a living plant, this natural mineral matrix is easier for your body to absorb and utilize.
In addition to these 13 minerals we also add full clinical doses of vitamins C, D, and K.
Clinical research published in three peer-reviewed scientific journals shows that the 16 nutrients in AlgaeCal Plus don’t just slow bone loss; they can actually help increase bone density in adults. No other calcium supplement can make this claim. Because AlgaeCal is the ONLY one that’s clinically supported to increase bone density.
What is Strontium Boost?
Strontium is a mineral that is naturally found in the earth, in your food, and in your bones. Our product, Strontium Boost, contains the mineral strontium bound to citrate (think citric acid from fruit) to form (natural) strontium citrate. Strontium Boost helps with your bone remodelling process by increasing the rate of your bone building cells so that you build bone faster and at the same time, it slows down your bone deterioration. Strontium Boost is the only strontium citrate product backed by human clinical studies showing its safety and efficacy when it comes to low bone density. In fact, Strontium Boost, together with AlgaeCal Plus, is guaranteed to increase your bone density in as little as 6 months.
Do I have to take both AlgaeCal Plus and Strontium Boost?
You don’t have to, but if you’re dealing with bone loss, taking AlgaeCal Plus together with Strontium Boost delivers the fastest results.
Clinical studies show:
- AlgaeCal Plus alone can increase bone density by an average of 1.3% per year.
- AlgaeCal Plus + Strontium Boost together produce an average 3% increase in just one year. And most people see results within the first 6 months.
So when you add Strontium Boost to your AlgaeCal Plus you’re going to build bone faster. That’s right. You’ll build more bone in less time.
And when you take both products together, you’re also covered by our Stronger Bones For Life Guarantee. So when you take AlgaeCal Plus and Strontium Boost, as directed, you’re guaranteed to see measurable bone density increases within six months – or your money back!
See reviews from people who’ve successfully used AlgaeCal Plus & Strontium Boost here.
What if I have trouble swallowing the capsules?
AlgaeCal Plus comes in size zero soft vegetarian capsules which are easy to swallow.
However, if swallowing capsules is difficult, you can gently pull them apart and sprinkle the tasteless powder into food or drinks. Semi-solid foods such as smoothies, applesauce, or yogurt work best.
Avoid mixing the powder into hot liquids above 120°F (49°C), as high temperatures can reduce the potency of vitamins C, D, and K2.
Because the powder contains a wide range of natural minerals, it is only partially water-soluble, so it won’t completely dissolve in liquid.
Does AlgaeCal Plus cause side effects such as deposits in kidneys or arteries?
No. AlgaeCal Plus is safe and without adverse side effects. Here’s why:
- Plant-based, not rock-based: Unlike traditional calcium supplements made from limestone or marble, AlgaeCal Plus is a food-source calcium similar to the calcium found in vegetables like broccoli and kale. So your body recognizes it as food and absorbs it accordingly.
- Balanced with co-factors: Each serving provides additional magnesium, boron, vitamin K2, and vitamin D3. These nutrients work together to move calcium into your bones where it belongs, and away from soft tissues like arteries, kidneys, or eyes.
- Clinically effective at a lower dose: AlgaeCal Plus increases bone density with only 720 mg of calcium per day, the exact amount used in human clinical studies. Traditional calcium supplements often recommend 1,200 mg or more—and still only slow bone loss.
Because AlgaeCal Plus delivers the right kind of calcium, in the right balance, it strengthens bones without the risks of kidney stones or arterial calcification.
Can I take AlgaeCal Plus if I am on bone medications?
Yes. All prescription bone medications require adequate calcium to give your body the raw materials it needs to build new bone. And AlgaeCal Plus provides a clinically supported, plant-based calcium that works beautifully alongside these treatments.
That said, it’s always important to check with your healthcare provider before making any changes to your supplement routine or medical care, especially if you’re currently taking prescription medications.
Does my doctor know about AlgaeCal?
Many doctors, especially those open to natural treatments, are already familiar with AlgaeCal. But every healthcare provider is different, and it’s always best to give them the full details yourself.
To make it easy, we’ve created a “Take It to Your Doctor” information sheet that outlines the clinical research, ingredients, and dosing. Print it out or share it at your next appointment so your doctor can give you the best, personalized guidance for your bone health.
What is the Stronger Bones for Life Guarantee?
You need strong bones for the rest of your life to enjoy, rather than endure, your golden years. With our guarantee, you can continue enjoying your favorite activities for the rest of your days.
Measurable improvements will appear at 6 months from when you start your AlgaeCal Plus and Strontium Boost program. So if your next DEXA scan is scheduled half a year or more from now, we guarantee you will see a bone density increase.
You may choose to wait for your next scheduled scan so that it is paid for by your insurance, or you may choose to pay out of pocket to check your results earlier. Either way is fine.
Just allow at least 6 consecutive months of taking the products as directed before your follow-up scan. We encourage you to take a scan every year to make sure you’re still building new bone.
IMPORTANT: Ensure you get your DEXA scan at the same clinic every time. Ideally, you’d get your scan on the same machine, too. That way, every scan is directly comparable to the last. If your follow up scan does not show an increase in your hip or spinal bone density, we refund every penny you paid us between those two scans.
Your 3 Steps to Guaranteed Bone Density Increases
1. Have a DEXA scan that is not more than 30 days old to establish a baseline measurement. (If you had a DEXA scan more than 30 days ago, your guaranteed period will launch from your next scan onward. So don’t wait! Get started building healthy new bone right now before your guarantee begins.)
2.Take AlgaeCal Plus and Strontium Boost at full dose as directed for at least six months.
3.Get your follow up DEXA scan from the same clinic as your first scan. It doesn’t matter when… six, twelve, even 24 months after you start – as long as you have continued to use your products between scans.
If your follow up scan does not show an increase in your hip or spine bone density, we refund every penny you paid us between those two scans.
Scientists Discover The Real Root Cause Of Bone Loss
(Hint - It’s Not A Lack Of Calcium)
Are you struggling with bone loss no matter how much calcium you take?
A study published in the British Medical Journal, the largest of its kind ever done, found that calcium supplements don’t prevent fractures.
That’s because bone loss isn’t a loss of calcium. It’s a loss of all the minerals that make your bones healthy and strong.
Sure, calcium is one of these minerals. But there are actually 16 different nutrients you need to keep your bones in top shape.
That’s Why We Created…
Nature’s Answer To Fragile Bones
AlgaeCal Plus is the world’s only multi-nutritional supplement clinically supported to increase bone density.
This all-natural product is unlike anything you’ve ever tried or experienced before.
Inside every AlgaeCal capsule you’ll find:
16 Clinically Supported Nutrients to increase your bone mineral density
Calcium
Most calcium supplements are made from crushed up rocks. So they’re hard to digest. But since AlgaeCal is from a plant, it's super absorbable and gentle on your body.
Magnesium
Without magnesium we cannot produce osteoblasts, the cells that create new bone, nor can we activate the enzyme that converts vitamin D into 1,25-D, the form in which vitamin D helps us absorb calcium. So a lack of magnesium means fewer osteoblasts and less calcium - a perfect recipe for fragile bones.
Potassium
By helping to neutralize the acidic pH resulting from the Standard American Diet, potassium prevents the loss of calcium from bone to restore a more alkaline pH, thus conserving calcium within our bones and reducing its loss in urine.
Boron
Boron is a trace mineral essential for the growth and maintenance of healthy bone. Boron helps our bones get the most benefit from vitamin D and our hormones. Boron becomes especially important for postmenopausal women and for men as testosterone levels start to decline after age 50.
Copper
Copper is essential in bone metabolism, activating enzymes like lysyl oxidase that incorporate both collagen and elastin into the organic component of bone.
Manganese
Manganese is critical in the formation of the extracellular matrix–the ground substance to which collagen adheres, and for the development of chondrocytes, the cells that secrete cartilage and become bone building- osteoblasts and eventually osteocytes, which regulate the entire bone renewal process. Without manganese, bone mineralization simply cannot start!
Silicon
Silicon plays a key role in bone formation by stimulating the production of bone-building osteoblasts and the synthesis of type 1 collagen, and by increasing calcium’s incorporation into bone.
Strontium
Scientists have discovered strontium has a unique dual-action on your bones. Strontium inhibits bone resorption while simultaneously stimulating bone growth through more than a dozen mechanisms of action, a true win-win for bone!
Nickel
Nickel can affect the distribution of other nutrients in your body, including calcium. Given the obvious benefit calcium has on our bones, you can see why an adequate level of nickel is critical to maintaining healthy bone!
Phosphorus
Approximately 85% of the body’s phosphorus is found in your bones. It’s fundamental to growth, maintenance, and is necessary along with calcium and magnesium for proper growth and formation of bones.
Selenium
Selenium is the required cofactor for two groups of enzymes intimately tied to bone health: the selenoenzymes, which neutralize bone-destructive free radicals and the deiodinase enzymes, which are necessary for the healthy thyroid function that keeps our bone renewal metabolism running. For these reasons, low selenium can mean decreased bone mineral density.
Vanadium
In one study, vanadium compounds were shown to increase bone formation without any adverse health effects!
Zinc
Zinc is an essential mineral that plays a crucial role in bone metabolism by acting as a cofactor for specific enzymes. But that's not all - studies have found that zinc can also help prevent bone loss, making it a vital nutrient for both men and women, especially those in their post-menopausal years.
Vitamin D3
Vitamin D is vital for your bone health. Without this essential nutrient, your body can't absorb calcium, and that's bad news for your bones.
Vitamin K2-7
You need vitamin K2 because it collects calcium from your bloodstream and directs it into your bones - keeping them healthy and strong. You don't want calcium getting into your soft tissue - where it can cause heart attacks, strokes, and even Alzheimer's.
Vitamin C
Vitamin C helps your body fight the root cause of bone loss. A 17-year study found that a high intake of this vitamin reduced the likelihood of hip and non-vertebral fractures.
+ Strontium Boost
Strontium does something that no other mineral can do.
It naturally accelerates bone-building. Studies show that when you take Strontium Boost alongside your AlgaeCal Plus, you’ll triple your bone density increases. That means you get stronger bones in less time.
Triple your bone density increases
See results in 6 months
Together AlgaeCal Plus and Strontium Boost are called The Bone Builder Pack…
Bone Builder Pack Benefits
Non-GMO
Easy To Swallow
Gentle For Your Body
They Increased Their Bone Density. You Can Too.
AlgaeCal has thousands of stories and reviews from people just like you, who've used AlgaeCal to successfully claim their bone health
"One year of of using AlgaeCal has changed my life"
Verified Purchase
Cherie Mathews
Austin, Texas
"I had a 11.8% increase in the bone density in my hip."
Verified Purchase
Denise McKee
Albuquerque, NM
"My doctor asked me, what is your secret?"
Verified Purchase
Annie Croell
Chatsworth, California
"No side effect, amazing results."
Verified Purchase
Roxanne Cummings
Cope, South Carolina
"My doctor said I should try AlgaeCal."
Verified Purchase
Lisa Reiss
Seldon, New York
"It was as if I was given back 30 years."
Verified Purchase
Mimi Guzeman
Sandy, Utah
Get FREE Shipping On Every Order
96% Of Customers Order A 6-Month Supply (Our Recommended Option)
Claim Your Discounted Bone Builder Pack Below While Stocks Last
Loading...
Stronger Bones For Life Guarantee
You will see increased bone mineral density on every DEXA bone scan you take, starting as soon as 6-months. And in the unlikely event that any scan shows a decrease, you will be refunded for ALL purchases between that scan and the last.
So you either get stronger bones, or your money back.
Frequently Asked Questions
What is AlgaeCal Plus?
AlgaeCal Plus is a plant-based calcium supplement made from a unique South American marine algae called Mesophyllum superpositum. These USDA-certified organic algae are sustainably hand-harvested from the ocean, gently sun-dried, and milled into a fine powder.
Unlike traditional calcium supplements, which are typically derived from rocks like limestone or marble, AlgaeCal Plus is a whole-food source of all 13 essential bone-supporting minerals: calcium, magnesium, manganese, phosphorous, nickel, silica, copper, vanadium, potassium, zinc, boron, selenium and strontium. And because it comes from a living plant, this natural mineral matrix is easier for your body to absorb and utilize.
In addition to these 13 minerals we also add full clinical doses of vitamins C, D, and K.
Clinical research published in three peer-reviewed scientific journals shows that the 16 nutrients in AlgaeCal Plus don’t just slow bone loss; they can actually help increase bone density in adults. No other calcium supplement can make this claim. Because AlgaeCal is the ONLY one that’s clinically supported to increase bone density.
What is Strontium Boost?
Strontium is a mineral that is naturally found in the earth, in your food, and in your bones. Our product, Strontium Boost, contains the mineral strontium bound to citrate (think citric acid from fruit) to form (natural) strontium citrate. Strontium Boost helps with your bone remodelling process by increasing the rate of your bone building cells so that you build bone faster and at the same time, it slows down your bone deterioration. Strontium Boost is the only strontium citrate product backed by human clinical studies showing its safety and efficacy when it comes to low bone density. In fact, Strontium Boost, together with AlgaeCal Plus, is guaranteed to increase your bone density in as little as 6 months.
Do I have to take both AlgaeCal Plus and Strontium Boost?
You don’t have to, but if you’re dealing with bone loss, taking AlgaeCal Plus together with Strontium Boost delivers the fastest results.
Clinical studies show:
- AlgaeCal Plus alone can increase bone density by an average of 1.3% per year.
- AlgaeCal Plus + Strontium Boost together produce an average 3% increase in just one year. And most people see results within the first 6 months.
So when you add Strontium Boost to your AlgaeCal Plus you’re going to build bone faster. That’s right. You’ll build more bone in less time.
And when you take both products together, you’re also covered by our Stronger Bones For Life Guarantee. So when you take AlgaeCal Plus and Strontium Boost, as directed, you’re guaranteed to see measurable bone density increases within six months – or your money back!
See reviews from people who’ve successfully used AlgaeCal Plus & Strontium Boost here.
What if I have trouble swallowing the capsules?
AlgaeCal Plus comes in size zero soft vegetarian capsules which are easy to swallow.
However, if swallowing capsules is difficult, you can gently pull them apart and sprinkle the tasteless powder into food or drinks. Semi-solid foods such as smoothies, applesauce, or yogurt work best.
Avoid mixing the powder into hot liquids above 120°F (49°C), as high temperatures can reduce the potency of vitamins C, D, and K2.
Because the powder contains a wide range of natural minerals, it is only partially water-soluble, so it won’t completely dissolve in liquid.
Does AlgaeCal Plus cause side effects such as deposits in kidneys or arteries?
No. AlgaeCal Plus is safe and without adverse side effects. Here’s why:
- Plant-based, not rock-based: Unlike traditional calcium supplements made from limestone or marble, AlgaeCal Plus is a food-source calcium similar to the calcium found in vegetables like broccoli and kale. So your body recognizes it as food and absorbs it accordingly.
- Balanced with co-factors: Each serving provides additional magnesium, boron, vitamin K2, and vitamin D3. These nutrients work together to move calcium into your bones where it belongs, and away from soft tissues like arteries, kidneys, or eyes.
- Clinically effective at a lower dose: AlgaeCal Plus increases bone density with only 720 mg of calcium per day, the exact amount used in human clinical studies. Traditional calcium supplements often recommend 1,200 mg or more—and still only slow bone loss.
Because AlgaeCal Plus delivers the right kind of calcium, in the right balance, it strengthens bones without the risks of kidney stones or arterial calcification.
Can I take AlgaeCal Plus if I am on bone medications?
Yes. All prescription bone medications require adequate calcium to give your body the raw materials it needs to build new bone. And AlgaeCal Plus provides a clinically supported, plant-based calcium that works beautifully alongside these treatments.
That said, it’s always important to check with your healthcare provider before making any changes to your supplement routine or medical care, especially if you’re currently taking prescription medications.
Does my doctor know about AlgaeCal?
Many doctors, especially those open to natural treatments, are already familiar with AlgaeCal. But every healthcare provider is different, and it’s always best to give them the full details yourself.
To make it easy, we’ve created a “Take It to Your Doctor” information sheet that outlines the clinical research, ingredients, and dosing. Print it out or share it at your next appointment so your doctor can give you the best, personalized guidance for your bone health.
What is the Stronger Bones for Life Guarantee?
You need strong bones for the rest of your life to enjoy, rather than endure, your golden years. With our guarantee, you can continue enjoying your favorite activities for the rest of your days.
Measurable improvements will appear at 6 months from when you start your AlgaeCal Plus and Strontium Boost program. So if your next DEXA scan is scheduled half a year or more from now, we guarantee you will see a bone density increase.
You may choose to wait for your next scheduled scan so that it is paid for by your insurance, or you may choose to pay out of pocket to check your results earlier. Either way is fine.
Just allow at least 6 consecutive months of taking the products as directed before your follow-up scan. We encourage you to take a scan every year to make sure you’re still building new bone.
IMPORTANT: Ensure you get your DEXA scan at the same clinic every time. Ideally, you’d get your scan on the same machine, too. That way, every scan is directly comparable to the last. If your follow up scan does not show an increase in your hip or spinal bone density, we refund every penny you paid us between those two scans.
Your 3 Steps to Guaranteed Bone Density Increases
1. Have a DEXA scan that is not more than 30 days old to establish a baseline measurement. (If you had a DEXA scan more than 30 days ago, your guaranteed period will launch from your next scan onward. So don’t wait! Get started building healthy new bone right now before your guarantee begins.)
2.Take AlgaeCal Plus and Strontium Boost at full dose as directed for at least six months.
3.Get your follow up DEXA scan from the same clinic as your first scan. It doesn’t matter when… six, twelve, even 24 months after you start – as long as you have continued to use your products between scans.
If your follow up scan does not show an increase in your hip or spine bone density, we refund every penny you paid us between those two scans.
Need Help?
Speak to our team of Bone Health Consultants