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BuildASoil  |  SKU: COW102

Cow Cal 24 - Food Grade Calcium + Phosphorus

Rated 5.0 out of 5
Based on 37 reviews
$25.00
Shipping calculated at checkout.
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Quality First

BuildASoil is committed to sourcing the highest quality ingredients you can trust. over 10,000 Five Star Reviews and over a decade in business

Delivery and Shipping


BuildASoil Shipping Policy

Notice: Each product page displays accurate estimated delivery windows based on real-time fulfillment and carrier schedules.




Shipping Options

At checkout, you’ll be presented with the following options:

  • BuildASoil Shipping (Free)
     Our complimentary shipping method for qualifying orders. We choose the most cost-effective carrier and shipping method. Delivery may take up to 10 business days. Most items qualify when you purchase two or more eligible products. Some qualify individually.

  • Standard Shipping
     A paid option where we ship using standard ground services, without prioritizing fulfillment speed.

  • Standard Shipping: Rushed Out the Door!
     Includes everything in Standard Shipping, plus guaranteed same business day shipment if the order is placed before our cutoff time.

  • Get It Fast
     Our expedited service. Orders are shipped via 2–3 day methods and prioritized for fulfillment, with most leaving the same business day (not guaranteed).

  • Overnight It
     For urgent deliveries, this ships your order via overnight service with immediate fulfillment, within 24 business hours..

  • FedEx Freight (Economy or Priority)
     Large or heavy orders that qualify for freight shipping will be offered these options. All freight ships via FedEx Freight unless otherwise arranged. If you require a non-liftgate delivery (e.g. dock or forklift available), please contact us in advance.




Carriers Used

We primarily ship with FedExUPS, and USPS. If you need a specific carrier for a specific shipping address, please reach out to us by phone at 855-877-7645, or send us an email to support@buildasoil.com, which will create a customer support ticket. You also have the option of submitting a ticket through the support.buildasoil.com site.




PO Boxes

Orders addressed to PO Boxes often incur additional costs and are ineligible for free shipping. To avoid delays or fees, we recommend using a physical shipping address whenever possible.




Shipping Outside the Lower 48

We do ship to Alaska, Hawaii, Puerto Rico, Guam, the U.S. Virgin Islands, and other U.S. territories.
Free shipping does not apply to most large or bulky items sent to these locations. Standard or custom rates will be calculated at checkout. Contact us if you need a freight quote for outlying areas.




Vendor-Fulfilled Items

Some products ship directly from our vendor partners. These will display accurate estimated ship dates on their product pages. Any concerns or delays with these items should be directed to support@buildasoil.com.




Freight Shipments

Freight shipping involves delivery of pallets via box trucks or semi-trailers.
By default, all freight is assumed to require liftgate service. If you do not need a liftgate, please notify us prior to shipment.

Inspect your freight order before signing the delivery receipt.
Count the number of packages and check for visible or concealed damage. Do not sign unless everything is accounted for and undamaged. Signing a receipt waives the right to claim missing or damaged freight unless noted at delivery.




Order Tracking

Tracking information will be emailed to the address on file once the order ships.
If you do not see the tracking email, visit https://buildasoil.aftership.com/ to locate your order using your email and order number. You may also contact support@buildasoil.com for assistance.




BuildASoil Shipping Protection

You can add BuildASoil Shipping Protection at checkout. This low-cost option insures your order against loss, theft, and damage.
If something goes wrong during transit, your replacement order will be fast-tracked through our claims system.

Even when protection is purchased, we request that you submit photos, videos, and any supporting evidence of the issue. This allows us to file formal claims with carriers and ensure the long-term success of our shipping network.




Claims Policy

All claims must be made via support@buildasoil.com.
 We do not accept claim submissions via phone.

To process your claim, we require the following:

  • A clear description of the issue

  • Photos or videos documenting damage, missing items, or incorrect products

  • Images of packaging, shipping labels, and box condition if relevant

Do not discard any shipping materials or products involved in the claim—carriers may require inspection.

Claim Deadlines:

  • Visible or Concealed Damage / Missing Items: Report within 5 business days of delivery

  • Incorrect Products: Report within 30 days of delivery

  • Lost Packages or Incorrect Delivery: Report within 30 days of shipment date




Carrier Responsibility Disclaimer

Once an order has left our facility, BuildASoil is not responsible for carrier-related issues such as delays, misroutes, or mishandled deliveries.
We will support claims to the best of our ability, but the final resolution is subject to carrier approval.

Additionally, we maintain zero tolerance for mistreatment of delivery drivers, delivery dispatchers, or anyone with the shipping/freight carrier. Any reported conflict resulting in a failed delivery will result in the order being refunded, minus the cost of shipping and a 15% restocking fee.

Description

🌿🐄 Cow Cal 24 - Plant Calcium Supplement 🌿🐄

Made exclusively from Grass Fed Cattle from Denmark, this is the cleanest High Calcium and Phosphorous product we have ever found. 

Calcium is one of the MOST important elements and it's not always easily available. 

Product Overview:

  • 24%-29% Calcium
  • 8%-15% Phosphorous
  • 3-6% Protein with all Amino Acids
  • 1-2% Magnesium 

Cow Cal 24 is an innovative calcium supplement derived from milk whey. It contains 24% calcium and 8% Phosphorous, making it a potent and effective option for plant nutrition. This product is organically available to plants, ensuring efficient uptake and utilization.

Try it with Yah Whey for the Holy Cow Effect!

Composition and Benefits:

  • Cow Cal 24 boasts a calcium concentration significantly higher than standard steamed bone meal, providing a more plant-available form of this essential nutrient.
  • The formula has a neutral pH, which is crucial for maintaining soil health and ensuring optimal nutrient availability for plants.
  • Unlike Calcium Carbonate, Cow Cal 24 does not alter soil pH, making it a more balanced and versatile option for calcium supplementation.
  • NOTICE: We were able to bring in the only exclusive: 100% Grass Fed Version of this material for distribution into the USA from Denmark. 

Environmental and Health Advantages:

  • Our supplement is a food-grade ingredient, contrasting favorably with mined minerals in terms of bioavailability and ecological impact.
  • Cow Cal 24 is free from high levels of heavy metals, often a concern with other mineral sources, ensuring a safer option for both plants and the environment.

Use and Efficacy:

Cow Cal 24 is designed to synergize the roles of calcium and phosphorus in plant development. While calcium is vital for cellular structure and function, phosphorus is key for energy transfer. This supplement is especially beneficial in promoting robust plant growth, improving overall plant health, and enhancing resistance to environmental stress.

Application:

Suitable for a wide range of plant types, Cow Cal 24 can be used as a part of a regular feeding regimen or as a targeted supplement to address specific calcium deficiencies.

Directions For Use: NOTICE NEW PRODUCT AND WE ARE ACTIVELY WORKING ON BEST PRACTICES. 

Drench: Update: Best results so far at 1 Teaspoon Per Gallon

NOTICE: Foliar Spray will leave white residue on leaves. Working on dose and mixture that does not leave residue. 

Updates to Directions will come as we use the product more

Questions?

We are here to help and our entire staff knows how to grow. Just reach out via chat, email or even phone. We are passionate about growing and want you to succeed.

Payment & Security

Payment methods

  • Amazon
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  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Venmo
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

average rating 5.0 out of 5
Based on 37 reviews
  • 5 Stars
    37 Reviews
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97% of reviewers would recommend this product to a friend
Customer photos and videos
37 Reviews
Reviewed by Mike E.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great source of calcium

This stuff works great. I was looking for a safe source of calcium and plants seem to respond very well to it. My last run i was noticing some little rust spots on the leaves in flower that I figured was probably calcium deficiency and have not had any this time around.

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Reviewed by William D.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Cow cal 24

I love this stuff. I use a little less then 1 tsp per gallon once a week. I don’t even do full organic but this is one of my favorites all around

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Reviewed by Edward
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

Haven't tried it yet but I am excited to add it to my collection. I don't think I've ever had bad results from bas

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Reviewed by Allen C.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Excellent product

Good stuff for the money, seems to be helping my ladies along nicely!

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Reviewed by Thomas A.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great combo

Loving using this for top dressing

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