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Overall rating: 4.5359855 / 5 from 4474 reviews.

AI Generated Review Summary

Bone Builder Pack is praised for its potential to increase bone mineral density, with many customers reporting significant improvements in bone density and pain. While some users experienced positive results, others did not notice a difference. The product is also appreciated for its ease of use and lack of side effects.

Summary topics

  • DEXA Scan Results: 8%
  • Bone Density Improvement: 8%
  • Overall Results: 14%
  • Customer Feeling: 4%
  • Side Effects: 7%

Review topics: ["color","ingredients","weight","use","pain","quality","results","problems","improvement","benefits","feel","taste","husband","amount","package","service","effects","relief","customer service","price","dose","stomach","back","delivery","power","boost","alternative","difference","teeth","body"].

Review highlights

  • "My recent DEXA scan was notably improved and my lab tests were greatly improved as well!"April W.
  • "I really hope my next DEXA Scan results later this year show improvement."Elizabeth
  • "My bones actually feel better with a lot less pain."Cheryl J.

Reviews

Great improvement

"Just got my latest Dexa score back. Have improved from osteoporosis in my AP spine to osteopenia- a 13% improvement! MY hips have improved 9. 2%, but I have lost 1. 8% in my femoral neck and left forearm, which is weird. I am ramping up more heavy weight exercise for my forearms, but don’t know how to improve the femoral neck scores. Overall, very happy with the improvement."

Pam (5/5)

More Comfortable

"I have taken the bone builder pack for close to a year. I had been experiencing a deep pain in my shins that mystified me until I had a bone scan taken and found that one of my T- Scores to be a minus 4. 6. Although I have not had a repeat scan, (my medical system only allows it once every 2 years) I have noted that the pain in my shins has demonstrably diminished. I am looking forward to a repeat scan and expect to report a significant improvement in my scores."

Maria S. (5/5)

Very Excited

"Had my DEXA two weeks ago and everything improved. I had completed my AI treatment plan March 2025 and continue my Bone Builder Pack along with Strontium Boost and my results have improved a lot! Aside from stopping the medication I trust that my bones did not improve by themselves. Bone Builder Pack is bringing them back. Hoping for a little more improvement needed for next year!"

Dee S. (5/5)

Great Dexa scan results after 1 year of taking Bone Builder Pack

"I was diagnosed with Osteoporosis at 51 years old after suffering a small fracture and was told I needed to get infusions/medication right away. I wanted to find a natural remedy & my wife found Algae Cal on line. After taking the Bone Builder pack for 1 year my hip Dexa Scan went from osteoporosis to osteopenia and my spine numbers really improved drastically. My endocrinologist was really surprised that my numbers got that much better without medication. I am hopeful that in the next year or two I will have a normal Dexa scan with no bone density issues at all."

Dave M. (5/5)

Aging well

"Hello from Colorado. I'm Renee'. I am 74. After my Dexa scan on April 4, 2024, showed a decrease in my bone density from the prior 2022 scan, I started researching calcium supplements. I found that most, if not all, over the counter calcium supplements are made from rock. I also found that pharmaceutical treatments were made with questionable ingredients. One product was using the embryos of Chinese hamsters. Ingredients I did not want to put into my body. A friend told me about a calcium product that was made from natural sea water algae. She had been using it for nearly two years and her Dexa had shown an increase in bone density. I called the Algaecal company and spoke with a Bone Health Consultant, asking her a lot of questions. She was patient and explained everything to me. Based on my friend's recommendation as well as the Consultant 's, I ordered my first Bone Builder Pak. I started using the Algaecal product on April 20, 2024. I have been taking the AlgaeCal regularly since that first purchase. I had my most recent Dexa Scan on April 16, 2026. I am happy and excited to report the following: 1. The percent change in the bone mineral density of the lumbar spine is +3. 2%. In 2024, the same area was a decrease of -2. 9%. 2. The percent change in bone mineral density of the left hip is +2. 9%. In 2024, the same area was a decrease of 3. 5%. With these positive increases in bone density, I will continue to use the Algaecal Bone Builder Pak."

Renee' B. (5/5)

It works

"My lumbar spine bone density increased by 9. 9% in 2025 after taking Algeacal for just over one year. Attached is the note from my doctor"

Gayla (5/5)

My journey

"Haven't taken my exam yet, but I can feel the difference in my bones no pain I'm more mobile than before I started taking Algaecal bone builder. This is a great product 👌"

Annette (5/5)

Ineffective

"Packaging is poor. The material on the seal has never been okay. The inner bottle is dusty of the med itself. Delayed delivery is never compensated not apology issued. The strontium affects some labs, especially the thyroid. Customer service not ready to take responsibilities and help."

AA (1/5)

Not certain yet

"I have been taking Algecal for about a year. I have not had a second bone scan to compare results. I have one problem with Algecal- and that is it negatively affects gastro intestinal ease."

Cynthia S. (3/5)

Yes, Algae Cal works and is worth the investment.

"After a year on Algae Cal and two or three times weekly weight training, my next Dexa scan showed a change from osteoporosis to osteopoenia. My Dexa scan after the third year showed my status as "stable. " My doctor says I only have to re-scan every two years now. So, at age nearly 80, I am satisfied. I stay physically active and am also working on balance to reduce the risk of falling."

Kathryn R. (4/5)

Q&A

I use AlgaeCal Plus and am having positive results. My friend is on blood thinner and should not have the Vitamin K. She recently had a serious bone break so she's trying to figure out how to increase her bone strength. What do you recommend for her?
Thanks for your question, Vivian, and we're sorry to hear about your friend's bone health. It really depends on the specific blood thinner she is taking, as some may not interfere with AlgaeCal, while others do. As for discussing the right fit for her, we would love to chat with her to ask her a few questions and offer our personalized support! She is welcome to give us a call at 1-800-820-0184 (USA & Canada toll-free) and our friendly and knowledgeable Bone Health Consultants would be happy to help. :) - Coral
Why is the Strontium boost taken at night?
Great question, Kate! Strontium Boost can be taken at any time of day — the key is to take it at least 2 hours apart from calcium or calcium-rich foods, since calcium and strontium compete for absorption. Many people find that taking Strontium Boost before bedtime works well, as it’s typically when the stomach is empty. Plus, bone turnover is most active at night, making it a great time for your body to put it to good use. :) I hope this helps! Please feel free to give us a call at 1-800-820-0184 (USA & Canada, toll-free) or email support@algaecal.com with any follow-up questions! - Yoori
Hello - I'm interested in the Bone Builder pack. However, I have a food allergy - do any of the ingredients include either sunflower seeds or sunflower oils or a sunflower derivative - e.g., tocopherols, vitamin E, etc. I'm also allergic to coconut oil. Please advise. Thank you.
Thank you for reaching out, Laurie! Both the AlgaeCal Plus and Strontium Boost does not have any coconut oil, sunflower seeds, sunflower oils, or a sunflower derivative included. That said, for any severe allergies we do advise consulting with your doctor/allergist for their best recommendation. Here is our Doctor Information Sheet for your convenience: https://blog.algaecal.com/wp-content/uploads/Doctor-Info-Sheet-BBP.pdf. I hope this helps! - Yoori
I am newly diagnosed with Alpha Gal. The ingredients look vegan but just making sure there are no ingredients that are sourced from mammals. Thanks.
Thank you for reaching out, Paula. Please note that AlgaeCal Plus is not considered vegan, as it includes vitamin D3, which is derived from lanolin (sheep wool). We recommend consulting with your healthcare provider before trying any new supplement to ensure it aligns with your specific needs. Here: https://blog.algaecal.com/wp-content/uploads/Doctor-Info-Sheet-BBP.pdf is our Doctor Information Sheet for your convenience. I hope this helps! - Yoori
My sister turned me on to this product and submitted my email address and hers, but i am thinkinfg she may have given the incorrect Email address for me, as I have not yet heard from you! Her name is Jessie Morgan and I wanted to make sure she got credit for this, me too!
Thank you for reaching out, Lynn! I'm so glad to hear that your sister, Jessie, recommended AlgaeCal to you. :) I can confirm that Jessie received her 400 reward points for referring you! And I'm happy to share that you received a 10% discount on your first order, which amounted to a savings of $91.20. That’s actually a greater value than the standard $20 referral discount. Just a friendly note: referral discounts can’t be combined with the 10% discount we have offered you. :) I hope this helps, Lynn! Please feel free to give us a call at 1-800-820-0184 (USA & Canada, toll-free) or email support@algaecal.com with any follow-up questions! - Yoori

Overall rating: 4.5359855 / 5 from 4474 reviews.

AI Generated Review Summary

Bone Builder Pack is praised for its potential to increase bone mineral density, with many customers reporting significant improvements in bone density and pain. While some users experienced positive results, others did not notice a difference. The product is also appreciated for its ease of use and lack of side effects.

Summary topics

  • DEXA Scan Results: 8%
  • Bone Density Improvement: 8%
  • Overall Results: 14%
  • Customer Feeling: 4%
  • Side Effects: 7%

Review topics: ["color","ingredients","weight","use","pain","quality","results","problems","improvement","benefits","feel","taste","husband","amount","package","service","effects","relief","customer service","price","dose","stomach","back","delivery","power","boost","alternative","difference","teeth","body"].

Review highlights

  • "My recent DEXA scan was notably improved and my lab tests were greatly improved as well!"April W.
  • "I really hope my next DEXA Scan results later this year show improvement."Elizabeth
  • "My bones actually feel better with a lot less pain."Cheryl J.

Reviews

Great improvement

"Just got my latest Dexa score back. Have improved from osteoporosis in my AP spine to osteopenia- a 13% improvement! MY hips have improved 9. 2%, but I have lost 1. 8% in my femoral neck and left forearm, which is weird. I am ramping up more heavy weight exercise for my forearms, but don’t know how to improve the femoral neck scores. Overall, very happy with the improvement."

Pam (5/5)

More Comfortable

"I have taken the bone builder pack for close to a year. I had been experiencing a deep pain in my shins that mystified me until I had a bone scan taken and found that one of my T- Scores to be a minus 4. 6. Although I have not had a repeat scan, (my medical system only allows it once every 2 years) I have noted that the pain in my shins has demonstrably diminished. I am looking forward to a repeat scan and expect to report a significant improvement in my scores."

Maria S. (5/5)

Very Excited

"Had my DEXA two weeks ago and everything improved. I had completed my AI treatment plan March 2025 and continue my Bone Builder Pack along with Strontium Boost and my results have improved a lot! Aside from stopping the medication I trust that my bones did not improve by themselves. Bone Builder Pack is bringing them back. Hoping for a little more improvement needed for next year!"

Dee S. (5/5)

Great Dexa scan results after 1 year of taking Bone Builder Pack

"I was diagnosed with Osteoporosis at 51 years old after suffering a small fracture and was told I needed to get infusions/medication right away. I wanted to find a natural remedy & my wife found Algae Cal on line. After taking the Bone Builder pack for 1 year my hip Dexa Scan went from osteoporosis to osteopenia and my spine numbers really improved drastically. My endocrinologist was really surprised that my numbers got that much better without medication. I am hopeful that in the next year or two I will have a normal Dexa scan with no bone density issues at all."

Dave M. (5/5)

Aging well

"Hello from Colorado. I'm Renee'. I am 74. After my Dexa scan on April 4, 2024, showed a decrease in my bone density from the prior 2022 scan, I started researching calcium supplements. I found that most, if not all, over the counter calcium supplements are made from rock. I also found that pharmaceutical treatments were made with questionable ingredients. One product was using the embryos of Chinese hamsters. Ingredients I did not want to put into my body. A friend told me about a calcium product that was made from natural sea water algae. She had been using it for nearly two years and her Dexa had shown an increase in bone density. I called the Algaecal company and spoke with a Bone Health Consultant, asking her a lot of questions. She was patient and explained everything to me. Based on my friend's recommendation as well as the Consultant 's, I ordered my first Bone Builder Pak. I started using the Algaecal product on April 20, 2024. I have been taking the AlgaeCal regularly since that first purchase. I had my most recent Dexa Scan on April 16, 2026. I am happy and excited to report the following: 1. The percent change in the bone mineral density of the lumbar spine is +3. 2%. In 2024, the same area was a decrease of -2. 9%. 2. The percent change in bone mineral density of the left hip is +2. 9%. In 2024, the same area was a decrease of 3. 5%. With these positive increases in bone density, I will continue to use the Algaecal Bone Builder Pak."

Renee' B. (5/5)

It works

"My lumbar spine bone density increased by 9. 9% in 2025 after taking Algeacal for just over one year. Attached is the note from my doctor"

Gayla (5/5)

My journey

"Haven't taken my exam yet, but I can feel the difference in my bones no pain I'm more mobile than before I started taking Algaecal bone builder. This is a great product 👌"

Annette (5/5)

Ineffective

"Packaging is poor. The material on the seal has never been okay. The inner bottle is dusty of the med itself. Delayed delivery is never compensated not apology issued. The strontium affects some labs, especially the thyroid. Customer service not ready to take responsibilities and help."

AA (1/5)

Not certain yet

"I have been taking Algecal for about a year. I have not had a second bone scan to compare results. I have one problem with Algecal- and that is it negatively affects gastro intestinal ease."

Cynthia S. (3/5)

Yes, Algae Cal works and is worth the investment.

"After a year on Algae Cal and two or three times weekly weight training, my next Dexa scan showed a change from osteoporosis to osteopoenia. My Dexa scan after the third year showed my status as "stable. " My doctor says I only have to re-scan every two years now. So, at age nearly 80, I am satisfied. I stay physically active and am also working on balance to reduce the risk of falling."

Kathryn R. (4/5)

Q&A

I use AlgaeCal Plus and am having positive results. My friend is on blood thinner and should not have the Vitamin K. She recently had a serious bone break so she's trying to figure out how to increase her bone strength. What do you recommend for her?
Thanks for your question, Vivian, and we're sorry to hear about your friend's bone health. It really depends on the specific blood thinner she is taking, as some may not interfere with AlgaeCal, while others do. As for discussing the right fit for her, we would love to chat with her to ask her a few questions and offer our personalized support! She is welcome to give us a call at 1-800-820-0184 (USA & Canada toll-free) and our friendly and knowledgeable Bone Health Consultants would be happy to help. :) - Coral
Why is the Strontium boost taken at night?
Great question, Kate! Strontium Boost can be taken at any time of day — the key is to take it at least 2 hours apart from calcium or calcium-rich foods, since calcium and strontium compete for absorption. Many people find that taking Strontium Boost before bedtime works well, as it’s typically when the stomach is empty. Plus, bone turnover is most active at night, making it a great time for your body to put it to good use. :) I hope this helps! Please feel free to give us a call at 1-800-820-0184 (USA & Canada, toll-free) or email support@algaecal.com with any follow-up questions! - Yoori
Hello - I'm interested in the Bone Builder pack. However, I have a food allergy - do any of the ingredients include either sunflower seeds or sunflower oils or a sunflower derivative - e.g., tocopherols, vitamin E, etc. I'm also allergic to coconut oil. Please advise. Thank you.
Thank you for reaching out, Laurie! Both the AlgaeCal Plus and Strontium Boost does not have any coconut oil, sunflower seeds, sunflower oils, or a sunflower derivative included. That said, for any severe allergies we do advise consulting with your doctor/allergist for their best recommendation. Here is our Doctor Information Sheet for your convenience: https://blog.algaecal.com/wp-content/uploads/Doctor-Info-Sheet-BBP.pdf. I hope this helps! - Yoori
I am newly diagnosed with Alpha Gal. The ingredients look vegan but just making sure there are no ingredients that are sourced from mammals. Thanks.
Thank you for reaching out, Paula. Please note that AlgaeCal Plus is not considered vegan, as it includes vitamin D3, which is derived from lanolin (sheep wool). We recommend consulting with your healthcare provider before trying any new supplement to ensure it aligns with your specific needs. Here: https://blog.algaecal.com/wp-content/uploads/Doctor-Info-Sheet-BBP.pdf is our Doctor Information Sheet for your convenience. I hope this helps! - Yoori
My sister turned me on to this product and submitted my email address and hers, but i am thinkinfg she may have given the incorrect Email address for me, as I have not yet heard from you! Her name is Jessie Morgan and I wanted to make sure she got credit for this, me too!
Thank you for reaching out, Lynn! I'm so glad to hear that your sister, Jessie, recommended AlgaeCal to you. :) I can confirm that Jessie received her 400 reward points for referring you! And I'm happy to share that you received a 10% discount on your first order, which amounted to a savings of $91.20. That’s actually a greater value than the standard $20 referral discount. Just a friendly note: referral discounts can’t be combined with the 10% discount we have offered you. :) I hope this helps, Lynn! Please feel free to give us a call at 1-800-820-0184 (USA & Canada, toll-free) or email support@algaecal.com with any follow-up questions! - Yoori

Overall rating: 4.5359855 / 5 from 4474 reviews.

AI Generated Review Summary

Bone Builder Pack is praised for its potential to increase bone mineral density, with many customers reporting significant improvements in bone density and pain. While some users experienced positive results, others did not notice a difference. The product is also appreciated for its ease of use and lack of side effects.

Summary topics

  • DEXA Scan Results: 8%
  • Bone Density Improvement: 8%
  • Overall Results: 14%
  • Customer Feeling: 4%
  • Side Effects: 7%

Review topics: ["color","ingredients","weight","use","pain","quality","results","problems","improvement","benefits","feel","taste","husband","amount","package","service","effects","relief","customer service","price","dose","stomach","back","delivery","power","boost","alternative","difference","teeth","body"].

Review highlights

  • "My recent DEXA scan was notably improved and my lab tests were greatly improved as well!"April W.
  • "I really hope my next DEXA Scan results later this year show improvement."Elizabeth
  • "My bones actually feel better with a lot less pain."Cheryl J.

Reviews

Great improvement

"Just got my latest Dexa score back. Have improved from osteoporosis in my AP spine to osteopenia- a 13% improvement! MY hips have improved 9. 2%, but I have lost 1. 8% in my femoral neck and left forearm, which is weird. I am ramping up more heavy weight exercise for my forearms, but don’t know how to improve the femoral neck scores. Overall, very happy with the improvement."

Pam (5/5)

More Comfortable

"I have taken the bone builder pack for close to a year. I had been experiencing a deep pain in my shins that mystified me until I had a bone scan taken and found that one of my T- Scores to be a minus 4. 6. Although I have not had a repeat scan, (my medical system only allows it once every 2 years) I have noted that the pain in my shins has demonstrably diminished. I am looking forward to a repeat scan and expect to report a significant improvement in my scores."

Maria S. (5/5)

Very Excited

"Had my DEXA two weeks ago and everything improved. I had completed my AI treatment plan March 2025 and continue my Bone Builder Pack along with Strontium Boost and my results have improved a lot! Aside from stopping the medication I trust that my bones did not improve by themselves. Bone Builder Pack is bringing them back. Hoping for a little more improvement needed for next year!"

Dee S. (5/5)

Great Dexa scan results after 1 year of taking Bone Builder Pack

"I was diagnosed with Osteoporosis at 51 years old after suffering a small fracture and was told I needed to get infusions/medication right away. I wanted to find a natural remedy & my wife found Algae Cal on line. After taking the Bone Builder pack for 1 year my hip Dexa Scan went from osteoporosis to osteopenia and my spine numbers really improved drastically. My endocrinologist was really surprised that my numbers got that much better without medication. I am hopeful that in the next year or two I will have a normal Dexa scan with no bone density issues at all."

Dave M. (5/5)

Aging well

"Hello from Colorado. I'm Renee'. I am 74. After my Dexa scan on April 4, 2024, showed a decrease in my bone density from the prior 2022 scan, I started researching calcium supplements. I found that most, if not all, over the counter calcium supplements are made from rock. I also found that pharmaceutical treatments were made with questionable ingredients. One product was using the embryos of Chinese hamsters. Ingredients I did not want to put into my body. A friend told me about a calcium product that was made from natural sea water algae. She had been using it for nearly two years and her Dexa had shown an increase in bone density. I called the Algaecal company and spoke with a Bone Health Consultant, asking her a lot of questions. She was patient and explained everything to me. Based on my friend's recommendation as well as the Consultant 's, I ordered my first Bone Builder Pak. I started using the Algaecal product on April 20, 2024. I have been taking the AlgaeCal regularly since that first purchase. I had my most recent Dexa Scan on April 16, 2026. I am happy and excited to report the following: 1. The percent change in the bone mineral density of the lumbar spine is +3. 2%. In 2024, the same area was a decrease of -2. 9%. 2. The percent change in bone mineral density of the left hip is +2. 9%. In 2024, the same area was a decrease of 3. 5%. With these positive increases in bone density, I will continue to use the Algaecal Bone Builder Pak."

Renee' B. (5/5)

It works

"My lumbar spine bone density increased by 9. 9% in 2025 after taking Algeacal for just over one year. Attached is the note from my doctor"

Gayla (5/5)

My journey

"Haven't taken my exam yet, but I can feel the difference in my bones no pain I'm more mobile than before I started taking Algaecal bone builder. This is a great product 👌"

Annette (5/5)

Ineffective

"Packaging is poor. The material on the seal has never been okay. The inner bottle is dusty of the med itself. Delayed delivery is never compensated not apology issued. The strontium affects some labs, especially the thyroid. Customer service not ready to take responsibilities and help."

AA (1/5)

Not certain yet

"I have been taking Algecal for about a year. I have not had a second bone scan to compare results. I have one problem with Algecal- and that is it negatively affects gastro intestinal ease."

Cynthia S. (3/5)

Yes, Algae Cal works and is worth the investment.

"After a year on Algae Cal and two or three times weekly weight training, my next Dexa scan showed a change from osteoporosis to osteopoenia. My Dexa scan after the third year showed my status as "stable. " My doctor says I only have to re-scan every two years now. So, at age nearly 80, I am satisfied. I stay physically active and am also working on balance to reduce the risk of falling."

Kathryn R. (4/5)

Q&A

I use AlgaeCal Plus and am having positive results. My friend is on blood thinner and should not have the Vitamin K. She recently had a serious bone break so she's trying to figure out how to increase her bone strength. What do you recommend for her?
Thanks for your question, Vivian, and we're sorry to hear about your friend's bone health. It really depends on the specific blood thinner she is taking, as some may not interfere with AlgaeCal, while others do. As for discussing the right fit for her, we would love to chat with her to ask her a few questions and offer our personalized support! She is welcome to give us a call at 1-800-820-0184 (USA & Canada toll-free) and our friendly and knowledgeable Bone Health Consultants would be happy to help. :) - Coral
Why is the Strontium boost taken at night?
Great question, Kate! Strontium Boost can be taken at any time of day — the key is to take it at least 2 hours apart from calcium or calcium-rich foods, since calcium and strontium compete for absorption. Many people find that taking Strontium Boost before bedtime works well, as it’s typically when the stomach is empty. Plus, bone turnover is most active at night, making it a great time for your body to put it to good use. :) I hope this helps! Please feel free to give us a call at 1-800-820-0184 (USA & Canada, toll-free) or email support@algaecal.com with any follow-up questions! - Yoori
Hello - I'm interested in the Bone Builder pack. However, I have a food allergy - do any of the ingredients include either sunflower seeds or sunflower oils or a sunflower derivative - e.g., tocopherols, vitamin E, etc. I'm also allergic to coconut oil. Please advise. Thank you.
Thank you for reaching out, Laurie! Both the AlgaeCal Plus and Strontium Boost does not have any coconut oil, sunflower seeds, sunflower oils, or a sunflower derivative included. That said, for any severe allergies we do advise consulting with your doctor/allergist for their best recommendation. Here is our Doctor Information Sheet for your convenience: https://blog.algaecal.com/wp-content/uploads/Doctor-Info-Sheet-BBP.pdf. I hope this helps! - Yoori
I am newly diagnosed with Alpha Gal. The ingredients look vegan but just making sure there are no ingredients that are sourced from mammals. Thanks.
Thank you for reaching out, Paula. Please note that AlgaeCal Plus is not considered vegan, as it includes vitamin D3, which is derived from lanolin (sheep wool). We recommend consulting with your healthcare provider before trying any new supplement to ensure it aligns with your specific needs. Here: https://blog.algaecal.com/wp-content/uploads/Doctor-Info-Sheet-BBP.pdf is our Doctor Information Sheet for your convenience. I hope this helps! - Yoori
My sister turned me on to this product and submitted my email address and hers, but i am thinkinfg she may have given the incorrect Email address for me, as I have not yet heard from you! Her name is Jessie Morgan and I wanted to make sure she got credit for this, me too!
Thank you for reaching out, Lynn! I'm so glad to hear that your sister, Jessie, recommended AlgaeCal to you. :) I can confirm that Jessie received her 400 reward points for referring you! And I'm happy to share that you received a 10% discount on your first order, which amounted to a savings of $91.20. That’s actually a greater value than the standard $20 referral discount. Just a friendly note: referral discounts can’t be combined with the 10% discount we have offered you. :) I hope this helps, Lynn! Please feel free to give us a call at 1-800-820-0184 (USA & Canada, toll-free) or email support@algaecal.com with any follow-up questions! - Yoori