Prop 65 notice 2025-00870: Keystone Co-Pack Manufacturing, LLC f/k/a TKS Products, LLC
Environmental Research Center, Inc. filed this California Prop 65 60-day notice on March 19, 2025. It names Keystone Co-Pack Manufacturing, LLC f/k/a TKS Products, LLC and TKS Products, LLC and alleges exposure to Lead and lead compounds from Just Ingredients Mountain Berry Protein Powder, Just Ingredients Roasted Peanut Butter Chocolate Protein Powder, Just Ingredients Strawberry Limeade Pre-Workout, Just Ingredients Lucky Mint Protein Powder, Just Ingredients Chai Protein Powder, Just Ingredients Salted Caramel Protein Powder, Just Ingredients Strawberries & Cream Protein Powder, Just Ingredients Chocolate Protein Powder, Just Ingredients Coconut Chocolate Protein Powder, Just Ingredients Mint Chocolate Protein Powder.
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
- 2025-00870
- Date filed
- Noticing party
- Plaintiff attorney
- Michael Freund & Associates
- Chemicals
- Source or product
- Just Ingredients Mountain Berry Protein Powder, Just Ingredients Roasted Peanut Butter Chocolate Protein Powder, Just Ingredients Strawberry Limeade Pre-Workout, Just Ingredients Lucky Mint Protein Powder, Just Ingredients Chai Protein Powder, Just Ingredients Salted Caramel Protein Powder, Just Ingredients Strawberries & Cream Protein Powder, Just Ingredients Chocolate Protein Powder, Just Ingredients Coconut Chocolate Protein Powder, Just Ingredients Mint Chocolate Protein Powder
- Official notice
- Notice PDF at oag.ca.gov
- Official record
- Attorney General record for 2025-00870
- Last checked
- November 11, 2026
What happened after this notice
Outcomes for this notice have not been checked yet. A settlement is not an admission and not a finding that anyone broke the law.
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