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Hi larker! We hate that it takes so long for your parcel to arrive, especially in the summer heat.

-Sadly, we disabled USPS Ground Advantage & UPS Ground Saver shipping options in the USA.

-But, we now discount shipping based on your order amount.

-Thank you and hope this helps!

Eggshell Calcium

$18.00
(19 reviews) Write a Review
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May 8, 2026: Next batch of eggshells are in, and available COAs are listed in the specs below. However, we're still waiting on the fluoride and particle size certificates. We don't expect the fluoride to come back until May 21, 2026 :(. Will put the next batch of bottles up for sale as soon as we get the results back (assuming they're in line). Thanks and sorry!

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

Loading certificate of analysis batch data…

Specifications (updated Jun 17, 2026):

  • Ingredients: Jet-milled eggshell calcium powder (with the eggshell membrane).
  • 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!

19 Reviews Hide Reviews Show Reviews

  • 5
    Bravo!

    Posted by Alex Speiser on Sep 27th 2025

    All of lark's stuff is awesome. It's cool to see them come out with new stuff. This one felt special in the glass jar. The eggs are so finely ground. We really like this stuff in my family. Grateful to utilize these products!