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Eggshell Calcium

$18.00
(10 reviews) Write a Review
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Jan 30, 2026: We have received the next batch of eggshell calcium, but the yeast lab results came back a bit high (2,100 cfu/g). We heat sterilized it and sent another sample off to the labs for follow-up testing. If the results are acceptable, we should have more in stock by mid Feb 2026. Thank you for your patience!

Sep 18, 2025: BUYER BEWRE: We want to be up front, our eggshell calcium has a distinct smell that you may not find enjoyable.

We are currently shipping 125 g Eggshell Calcium with the following info:

Serial Numbers (s/n)
& Date Range Sold
Lab Results & Info
H0027 - onward

Feb 6, 2026 - onward

Eggshell Powder:

  • Date received: Jan 12, 2026
  • Made in: China (why China?)
  • Purity COA (pdf*)
  • Calcium: 40%
  • Metals/Non-Metals COA (pdf, pdf)
  • Aluminum: 0.26 ppm
  • Arsenic: < 0.10 ppm
  • Cadmium: < 0.10 ppm
  • Chromium:  0.11 ppm
  • Fluoride: < 5 ppm
  • Lead: < 0.10 ppm
  • Mercury: < 0.05 ppm
  • Nickel: < 0.10 ppm
  • Microbials COA* (pdf)
  • *our initial COA had some microbial levels that were out of range. we heat sterilized the eggshells and re-tested. see the initial COA (pdf).
  • Aerobic: 1,800 cfu/g
  • Coliform:< 10 cfu/g
  • E. coli: < 10 cfu/g
  • Salmonella: negative
  • Mold: < 10 cfu/g
  • Yeast: < 10 cfu/g
  • Particle Size (pdf)
  • Average: 17.50 µm
Bottle & Cap:
  • Bottle material: amber glass
  • Cap/seal: phenolic plastic cap and LDPE cone liner
  • Made in: USA
See all COAs.

We are currently shipping 400 g Eggshell Calcium with the following info:

Serial Numbers (s/n)
& Date Range Sold
Lab Results & Info
G0076 - onward

Feb 6, 2026 - onward

Eggshell Powder:

  • Date received: Jan 12, 2026
  • Made in: China (why China?)
  • Purity COA (pdf*)
  • Calcium: 40%
  • Metals/Non-Metals COA (pdf, pdf)
  • Aluminum: 0.26 ppm
  • Arsenic: < 0.10 ppm
  • Cadmium: < 0.10 ppm
  • Chromium:  0.11 ppm
  • Fluoride: < 5 ppm
  • Lead: < 0.10 ppm
  • Mercury: < 0.05 ppm
  • Nickel: < 0.10 ppm
  • Microbials COA* (pdf)
  • *our initial COA had some microbial levels that were out of range. we heat sterilized the eggshells and re-tested. see the initial COA (pdf).
  • Aerobic: 1,800 cfu/g
  • Coliform:< 10 cfu/g
  • E. coli: < 10 cfu/g
  • Salmonella: negative
  • Mold: < 10 cfu/g
  • Yeast: < 10 cfu/g
  • Particle Size (pdf)
  • Average: 17.50 µm
Bottle & Cap:
  • Bottle material: amber glass
  • Cap/seal: polypropylene cap and F217 foam liner
  • Made in: USA
See all COAs.

Specifications:

  • Ingredients: Jet-milled eggshell calcium powder.
  • Excipients: None.
  • Country of Origin: See table above.
  • Certificate of Analysis (COA) available online with every order (why the COA? | view COAs)
  • Bottled in an amber glass jar for protection from UV light (why amber?)
    • See table above for bottle components' country of origin.
    • 125 g Bottle
      • Dimensions: 2 1/16 x 3 7/8 in (53 x 98 mm) (diameter x height)
      • Total weight: 9 oz (255 g)
    • 400 g Bottle
      • Dimensions: 3-5/8 x 3-13/16 in (92 x 97 mm) (diameter x height).
      • Total weight: 25 oz (710 g).

Optional scoops:

  • 0.5 ml Plastic Scoop
    • Holds roughly ~0.65 g per loose/unpacked level scoop, or ~260 mg of elemental calcium.
    • Please wash/sterilize before use!
    • Made in China (why China?).
    • Length: 3.75 in (95 mm).
    • Weight: 0.04 oz (1.1 g).
  • 1 ml Plastic Scoop
    • Holds roughly ~1.3 g per loose/unpacked level scoop, or ~520 mg of elemental calcium.
    • Please wash/sterilize before use!
    • Made in China (why China?).
    • Length: 3.75 in (95 mm).
    • Weight: 0.04 oz (1.1 g).

Disclosures (updated Dec 20, 2024):

  1. We use glass containers for storage and packaging, although caps and seals are usually made from silicone, plastic, rubber, or LDPE.
  2. We use amber colored glass or wrap clear glass to block UV rays from reaching contents.
  3. We store bulk powder sealed in the freezer.
  4. We store EVOO at room temperature (74 - 78°F or 23.3 - 25.6°C) away from sunlight.
  5. We steam sterilize all glass bottles, containers, caps, liners, and utensils before using them for storage or bottling using distilled water.
  6. We prioritize the material of all containers and utensils that come into contact with product in this order: glass, ceramic, stainless steel, plastic, aluminum.
  7. Bulk powder we receive is usually stored in an aluminum or plastic container. We immediately weigh and move it to a glass container.
  8. More information about our process here.
  9. Please also review our Terms and Conditions before placing an order.

Are we missing something that you'd like to see? Let us know!

10 Reviews Hide Reviews Show Reviews

  • 5
    Best calcium supplement that exists!

    Posted by Jason on Jan 23rd 2026

    Larksupply are upmost professionals with high quality products. I wish found them a lot sooner. Finding a calcium supplement that is tested/clean, not irritating to the gut, absorbs well and can easily raise your calcium levels and lessen stress is absolute paramount!

  • 5
    eggshell calcium

    Posted by graham music on Jan 23rd 2026

    great product, one of the few safe for humans and trustworthy sources of eggshell calcium

  • 5
    Energy Boost

    Posted by April on Jan 10th 2026

    Within 2 days of taking the calcium I noticed an improvement in my energy! This brand is super clean and easy to dose. Highly recommend!

  • 5
    Eggcellent Quality

    Posted by Anthony Politi on Jan 7th 2026

    Stopped using other brands of eggshell powder due to concerns about contamination. Easy to mix into drinks or sprinkle over food because it is ground to a fine dust. Having a product that is tested like this one makes me more confident. Works great when needed to balance your ratio of Ca:P!

  • 5
    Good Product

    Posted by Nima on Jan 5th 2026

    Can tell it's a good product. Natural smell (didn't bother me) and better than other calciums I've tried that have a chemical smell.

  • 5
    Great product

    Posted by Eric on Jan 1st 2026

    Very happy with this product. It mixes well into any solution and I don’t taste anything with it. Haven’t tried it with solid food but I’m sure it would be fine.

  • 5
    Eggshell Calcium

    Posted by Dan Dixon on Nov 5th 2025

    Really enjoying this product! I find it difficult to get a high level of calcium in my diet relative to phosphate and this is a super product. Even if you make your own, it is quite difficult to get eggshell to this fine of a consistency.

  • 5
    Best calcium supp

    Posted by Dang on Nov 2nd 2025

    Best on the market! I've switched from coral calcium to this and noticed better digestion

  • 5
    Quality

    Posted by Oliver C on Oct 24th 2025

    Great quality and even better customer service. no bad smell here