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Thrive  |  SKU: THC103

Thrive Yah-Whey Concentrate: Holy Cow

Rated 5.0 out of 5
Based on 41 reviews
$60.00
Shipping calculated at checkout.
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Delivery and Shipping

 

BuildASoil Shipping Policy

At BuildASoil, we’re committed to providing the most affordable and reliable shipping possible—for both our customers and our business. We continuously evaluate and improve our fulfillment process to ensure faster, smoother deliveries. We know shipping is often a pain point in shopping online, and our goal is to make it feel painless. For full details, please read the complete policy below.

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


📦 Shipping Options 
  • BuildASoil Shipping: 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.   
     
  • Standard Shipping: Rushed Out the Door! Includes everything in Standard Shipping, but adds on same day order processing (not guaranteed).
  • Get It Fast: Our expedited service. Orders are shipped with 2-3 day transit times and are prioritized for fulfillment, with most leaving the same business day (not guaranteed).
  • Overnight It: Ships via overnight service with immediate fulfillment for urgent deliveries.
  • FedEx Freight (Economy or Priority): For large or heavy orders. All freight ships via FedEx Freight unless arranged otherwise. Contact us in advance if no liftgate is required.
  • Pickup at Factory Store – Available Within 24 Hours! Select this option to pick up your order at our factory store. We'll notify you when it's ready. Bring your order confirmation and a valid ID.
Option Cost Transit Speed Fulfillment Speed Notes
BuildASoil Shipping Free Up to 10 business days Standard Free on any eligible items; ships at our discretion
Standard Shipping Paid 3-7 business Days Standard Standard handling and transit
Standard Shipping: Rushed Out the Door! Paid (slightly more) 3-7 business Days Same Day Fast handling out the door with standard transit
Get It Fast Higher 2–3 business days Same Day Fast handling and transit
Overnight It Highest 1 business day ASAP Fastest possible option
Pickup at Factory Store Free N/A Ready In 24hrs Local pickup option
FedEx Freight Economy Varies by order 2–9 business days (varies) Varies For large or heavy orders
FedEx Freight Priority Varies by order 2–7 business days (faster) Varies For large or heavy orders

🚚 Carriers Used

We ship with FedEx, UPS, and USPS. Carrier preference is not guaranteed unless explicitly communicated to us. 


📮 PO Boxes 

Orders shipped to PO Boxes often require additional costs and are not eligible for free shipping. Use a physical address to avoid delays and fees.


🏝️ Outside Continental US

We ship to Alaska, Hawaii, Puerto Rico, Guam, Northern Mariana Islands and the U.S. Virgin Islands. Free shipping generally does not apply to large or bulky items shipped to these locations. Hawaii and Alaska do have more flexibility with this due to carrier policies. Quotes will be calculated at checkout or by request.


🇨🇦 Canada Orders

We do ship to Canada for select items. Canadian customers must choose “UPS Standard® Shipping to Canada with no Surprises!” at checkout to ensure proper customs clearance and avoid unexpected brokerage fees or delays. Orders using other methods may be subject to delays or rejection at customs.


🏭 Vendor-Fulfilled Items

Some products are fulfilled by vendor partners and display estimated ship dates on their product pages. Questions about these items should be sent to support@buildasoil.com.


🚛 Freight Shipments

Freight deliveries involve pallets via box trucks or semis. Liftgate service is assumed unless specified otherwise.

Important: Inspect all freight shipments before signing. Count and examine all packages. Signing the delivery receipt confirms that the order arrived in full and undamaged.


🚛 Full Truckloads

Orders that qualify for full truckload (FTL) delivery will be custom quoted after checkout. Rates are based on location, order volume, and unloading requirements.

  • Indicate if you have a dock, forklift, or unloading equipment.
  • If you need liftgate or manual unload service, please notify us.
  • Contact support@buildasoil.com in advance for FTL quotes.

🔍 Order Tracking

Tracking information is emailed upon shipment. If not received, visit buildasoil.aftership.com and enter your order details. For help, contact support@buildasoil.com.


🛡️ Shipping Protection

This low-cost optional add-on at checkout insures your shipment against loss, theft, and damage. Claims are fast-tracked for resolution or replacement.

Even with protection, we encourage submitting photos, videos, and documentation to assist our carrier claims process.


📋 Claims Policy

All claims must be submitted via support@buildasoil.com. Phone-based claims are not accepted.

Required Documentation:

  • Issue description
  • Photos/videos of damage, missing or incorrect items
  • Images of packaging and labels

Do not discard packaging or damaged items—carriers may require inspection.

Claim Deadlines

  • Damage / Missing Items: Within 5 business days of delivery
  • Incorrect Products: Within 30 days of delivery
  • Lost or Misdelivered Packages: Within 30 days of shipment

⚠️ Responsibility Disclaimer

Once an order leaves our facility, we are not liable for delays, damage, or misdelivery caused by the carrier. We assist with claims but final decisions rest with the carrier.

We have zero tolerance for mistreatment of delivery drivers. Verified misconduct may result in cancellation and refund of your order minus shipping costs.

Description

🌿 Thrive Holy Cow 🐄 4x Concentrated Yah-Whey

High Potency Calcium and Phosphorous Fermentation Plant Booster 

4 Times as concentrated as Yah-Whey

Why is it called Holy Cow? Well, it's derived from "Yah-Whey" which is Holy and Cow Cal from BuildASoil, so naturally, it's Holy Cow!! That and those are the words you're going to tell yourself after the first application! 🙌

Which one should I get? 

Holy Cow is a Concentrated Version of Yah-Whey. 

Yah-Whey: 1-2 Ounces per gallon

Holy Cow: 1/4 - 1/2 Ounce Per Gallon (4 Times as concentrated)

1 Quart Holy Cow = 1 Gallon of Yah-Whey

1/2 Gallon of Holy Cow = 2 Gallons of Yah-Whey

1 Gallon of Holy Cow = 4 Gallons of Yah-Whey

Concentrate saves on plastic and on shipping!

🌱 Derived From:

  • Yah-Whey
  • Cow-Cal 24
  • Horticultural Coconut Water Powder
  • Organic Molasses
  • Humic Acid

🧬 Features & Benefits:

🔬 3-Stage Fermentation Process

Holy Cow has a unique 3-stage fermentation process, ensuring all inputs are broken down and highly bioavailable for your plants and soil.

🧪 Concentrated Probiotic Solution

Yah-Whey is a concentrated Probiotic Kefir Grain, Whey, and Curd solution. Fermented compounds create a diverse probiotic whey for your plants and soil. Perfect for growers who don't have the resources to make compost teas or top dressing inputs.

🥛 Cow Cal 24 Addition

Thrive Probiotics added Cow Cal 24 to make a highly concentrated fermented cow's milk product! This innovative calcium supplement helps in supplementing calcium, phosphorus, magnesium, manganese, potassium, fats, and proteins.

🥥 Polysaccharide Blend

Holy Cow and Yah-Whey use a diverse blend of Polysaccharides including Build a Soil Raw Freeze Dried Coconut powder, Cow's milk, and Sugar Cane molasses. This blend feeds and stabilizes the microbes, providing trace elements, vitamins, minerals, enzymes, amino acids, antioxidants, and phytonutrients.

🌾 Suitable for:

  • Seed starting
  • Young veg plants
  • Older established plants or trees
  • Early to mid-flowering plants

Suitable for a wide range of plant and soil types. Can be used as part of a regular feeding regimen or as a targeted supplement to address specific calcium and magnesium deficiencies.

🌟 How to Use:

Your plants will be reaching to the sky as you say HOLY COW this stuff works with just one application! 🌱💧

Notice: Strong Odor! Stink in = Stink out 💨

📅 When to Use:

Holy Cow can be used for seed starting, young veg plants, older established plants or trees, and early to mid-flowering plants. For annual plants, please do not feed late into flowering, as your plants won't finish or may die off.

🛠 Storage:

Keep Holy Cow in a dark, cool area. Keep fully sealed after use. For extended storage (4-12 months) store in fridge. Contents will expire after 12 months if not opened. Contents contain living organisms, use accordingly. Secondary fermentation may occur, causing the bottle to expand. Regularly vent by unscrewing the cap, to mitigate bottle expansion.

📋 Ingredients:

  • Grass Fed Milk Kefir Whey
  • Cow-Cal 24
  • Organic Sugar Cane Molasses
  • BuildASoil Freeze Dried Horticultural Coconut Water Powder
  • Humic Acid

📝 Directions:

  • Use as a soil-drench or foliar application: DO NOT USE LATE IN FLOWERING.
  • 0.5-1 Ounces per gallon for Foliar Applications, Seed Starting, and Rooting Clones (Plug or Aeroponic Rooting).
  • 1-2 Ounces/Gallon of water for Soil Drench applications (Do not use more).
  • 2-4+ Ounces/Gallon for Composting and starting your own Ferments!

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

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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 41 reviews
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    40 Reviews
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100% of reviewers would recommend this product to a friend
Customer photos and videos
41 Reviews
Reviewed by Mark C.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

If I could only have one amendment...

It would be this stuff. The plants love it and in this concentrated form, with Cow Cal it's even better than the original Thrive. And since it's a 4:1 ratio, it also Des up saving me some red money, which of course I can use to but more BAS products, lol.

Gret stuff.

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Reviewed by Michael S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Holy cow

Great stuff I'm using 2 Oz per 5 gallon of water along with build a bloom powder. We tried 6 Oz per 5 gal was too much. Low dose seems perfect. Happy plants explosive growth. I also top dressed a.week before flower cycle. I recommend to my friends that grow. Thanks to Eric he recommended it , he is very knowledgeable I learn something every time I order.

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

Great nutrients for indoor growing

I use a living soil but it still needs help along the way.. Holy Cow does a great job to get me to the harvesting stage

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Reviewed by Jarrod L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great stuff

Very stinky with great results

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

HolyCow

Loved the YaWhey so i had to go ahead and try out the HolyCow and so far I'm just as impressed. Awesome all around product 💯

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