Prop 65 Notices

Prop 65 notice 2018-00348: Natural Stacks, Inc.

Environmental Research Center, Inc. filed this California Prop 65 60-day notice on March 13, 2018. It names Natural Stacks, Inc. and alleges exposure to Lead and lead compounds from Dietary supplements.

The violations below are alleged in a 60-day notice. They are not proven. A 60-day notice is not a lawsuit and not a finding of liability.

AG number
2018-00348
Date filed
Noticing party
Plaintiff attorney
Anne Barker
Alleged violators
Chemicals
Source or product
Dietary supplements
Official notice
Notice PDF at oag.ca.gov
Official record
Attorney General record for 2018-00348
Last checked
November 11, 2026

What happened after this notice

Reported to the Attorney General by the party that filed the notice, as of November 12, 2026. A settlement is not an admission and not a finding that anyone broke the law.

  1. Settlement,

    Defendant
    Natural Stacks, Inc.
    Case
    Environmental Research Center, Inc. v. Natural Stacks, Inc.,
    Court
    Out-of-Court settlement, N/a
    Total payments
    $36,250.00
    Civil penalty
    $20,787.00
    Attorney fees and costs
    $15,463.00
    Payment in lieu of penalty
    $0.00
    Terms
    Settlement and Release Agreement section 3.1 Beginning on August 1, 2018, Natural Stacks shall not manufacture for sale in the State of California, "Distribute into the State of California," or directly sell in the State of California, any Covered Products which expose a person to a "Daily Lead Exposure Level" of more than 0.5 micrograms of lead per day unless it meets the warning requirements under Section 3.2.
    Official document
    PDF at oag.ca.gov

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Other notices naming Natural Stacks, Inc.

  • NATURAL STACKS INC.: Benzene in Cannabinoid Infused Hand Sanitizer
    Notice 2021-02161, filed 2021-08-31 by Public Health & Safety Advocacy, LLC

Recent notices filed by Environmental Research Center, Inc.

  • Steuben Foods, Incorporated: Perfluorooctanoic Acid (PFOA) in Kiki Milk Unsweetened Organic Plant-Based Milk, Kiki Milk Chocolate Organic Plant-Based Milk
    Notice 2026-05243, filed 2026-11-06 by Environmental Research Center, Inc.
  • SF Markets, LLC: Perfluorooctanoic Acid (PFOA) in Kiki Milk Unsweetened Organic Plant-Based Milk, Kiki Milk Chocolate Organic Plant-Based Milk
    Notice 2026-05242, filed 2026-11-06 by Environmental Research Center, Inc.
  • Walmart Inc.: Perfluorooctanoic Acid (PFOA) in Ripple Coffee with Other Natural Flavor Protein Shake
    Notice 2026-05241, filed 2026-11-06 by Environmental Research Center, Inc.
  • SF Markets, LLC: Perfluorooctanoic Acid (PFOA) in Ripple Kids Plant-Based Milk Unsweetened Original
    Notice 2026-05240, filed 2026-11-06 by Environmental Research Center, Inc.
  • DAS Labs LLC, individually and dba Bucked Up and 1 more: Lead and lead compounds in Babe Boost Black Cherry Bucked Up Natural Flavors
    Notice 2026-05239, filed 2026-11-06 by Environmental Research Center, Inc.