Fulvic Acid

Rated 4.90 out of 5 based on 10 customer ratings
(10 customer reviews)


Why Use It?

Corrects nutrient lock out conditions and amplifies nutrient uptake to increase the availability of nutrients and mineral absorption into the root cells with the use of organic bio stimulants to maximize plant’s growth and yield capacities.

Product Documents

Not Available in California

Product Description


Product form:

Dry powder, water soluble

NPK analysis:


Product designation:

Natural (This product is a candidate for organic certification. To ensure the lowest price, Kelp4Less has chosen not to register this product.)

Primary function/use:

As a fertilizer. Product also makes nutrients more available to their plants. High carbon and low pH substance. Boost nutrient efficiency of plant. Mix with other plant foods to enhance nutrient uptake.

Other product highlights:

Highly concentrated 75% fulvic acid. Called nature’s masterpiece, fulvic acid is an extract of decomposed organic matter. Fulvic acid is soluble in any media whether acidic, alkaline or neutral. Product is plant-derived.

Product Comparison Results:

Uptake of Nutrients from plant

Nutrient Uptake with Fulvic Acid

Plant Growth and Development

Fulvic Acid
Directions For Use

Well suited for:

Hydroponics, soil and soil-less.


Ensure bag is properly sealed and stored in cool, dry, dark place.

When and where to use:

During all stages of plant development.

For hydroponics:

Mix ¼ tsp. to one (1) gallon of water.

All items are shipped using USPS Priority Mail, unless otherwise requested and arranged by the customer, prior to order completion.Free Shipping

All orders ship within 48 hours of order confirmation and as always FREE SHIPPING in the USA. After successfully placing an order from you will receive an order confirmation email with the details of your order to the email address provided.

Once your order has shipped you will be emailed specific tracking information.

To check the status of an order please visit our “View Order” page.

Gift Cards are electronically delivered to your email address.

State of Idaho is not an option for shipping any of our products. If you are in the State of Idaho, please contact us direct.

Kelp4less Disclaimer

While Kelp4less has made every effort to ensure accuracy of information on its website and labels, Kelp4less assumes no responsibility or liability for the use and results of any of it’s products.

The purchaser and the end user of Kelp4less products assumes sole responsibility and liability for product use, results and disposal. Kelp4less makes no guarantees either express or implied.

10 reviews for Fulvic Acid

  1. Avatar
    Rated 5 out of 5

    MATT (verified owner)

    FANTASTIC – Ihave been using for 2 years ,in both aeroponics(winter) and outside(summer garden) , and in both instances have visually watched the roots go from threads to rope size in a matter of weeks and we all know that bigger roots =better fruit-HIGHLY RECOMMENDED FOR USE IN A.A.C.T. (VORTEX TEA BREWING
    TNX – MATT

  2. Avatar
    Rated 5 out of 5


    Awesome product!!
    I used this on Atlantic Giant Pumpkins. Foliar and root feeding made a huge difference in the size and quality of plant and fruit. Root mass was extensive feeding larger vines. The leaves were enormous taking advantage of photosynthesis. I’ll continue using this product in future plants.

  3. Avatar
    Rated 5 out of 5

    Chad (verified owner)

    Super affordable fulvic makes it perfect for the res but greatest benefits as a foliar especially with other goodies like aminos, sugars, and micronutrients.

  4. Avatar
    Rated 5 out of 5

    mark (verified owner)

    i have never used fulvic acid before so far all of the products i have bought works extreamly well ..i highly recommend using kelp for less products …the uptake of nutrients to my plants have increased at a faster rate than ever before with fulvic acid…great products

  5. Avatar
    Rated 4 out of 5


    I use a combination of different “super drinks” that I have experimented over the years and this is a super star additive in my line up. Humic acids are awesome, but fulvic is the way to go. It is always in my pre-start to my compost teas. Try your own recipes and find out what works with your regimen. Try this: add fulvic acid, powered molasses, and kelp extract in your compost tea (with a air bubbler) with NO compost and watch life happen.. This will produce the crazy bubbles you are looking for in your teas with out the compost. The plants will dance after this baby!! K4L always the thumbs up!!

  6. Avatar
    Rated 5 out of 5

    Baitman (verified owner)

    I use a mixture of fulvic and kelp as a foliar spray once a week and run it through drip irrigation for giant pumpkins, I have healthy looking plants

  7. Avatar
    Rated 5 out of 5

    Dan (verified owner)

    This product has had an immediate impact on both flowers and vegetables

  8. Avatar
    Rated 5 out of 5

    randall (verified owner)

    I use fluvic acid in all my mixes and I love it and would recommend it to my buds.

  9. Avatar
    Rated 5 out of 5

    neil camner

    I have used multiple Kelp 4 less products in super soil-it is my only source of go to products!

  10. Avatar
    Rated 5 out of 5

    Hanging Hydro (verified owner)

    Its the bomb! Everything perked up in 20 minutes. Use less than indicated for Foliar to leave room for other nutes.

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