What in this or packaging constitutes the Prop 65 warning please?

We've recently had questions regarding the prop 65 warning label for Uncle Harry's toothpaste. Per the manufacturer, the amount of lead that is naturally occurring in the bentonite clay, which is the base of the toothpaste, is a small fraction of what is found in organically grown vegetables or the soil that organic vegetables are grown in. Additionally these naturally occurring minerals are not bio available to accumulate in the body. Please see the response from Uncle Harry's below: Thank you for contacting Uncle Harry's! We are required by law to apply Proposition 65 labels to products containing bentonite clay which are sold in the state of California. This includes all flavors of Uncle Harry's toothpaste. It contains approximately 9 ppm of lead. This means that per brushing there is approximately 0.000000191 ounces of lead, or 5.4 micrograms. What is Proposition 65? The Safe Drinking Water and Toxic Enforcement Act of 1986, better known as Proposition 65, was passed to allow California voters to make more informed decisions about their exposure to toxic chemicals. Prop 65 warnings are only required under California law. Prop 65 toxicity guidelines apply to industrial metals and runoff, in addition to naturally occurring minerals, fruits, vegetables, and other earth substances. Why is Bentonite Clay used? Bentonite clay provides an impressive assortment of minerals including magnesium, potassium, iron, manganese, calcium, and silica, in addition to an assortment of rare trace minerals. It makes an excellent cleanser for the teeth. Which Uncle Harry’s products have these warning labels? The Uncle Harry’s products that contain Bentonite Clay and require Prop 65 warnings for our California consumers are: - All flavors of Toothpaste (Including Whitening Toothpaste Polish) - Activated Charcoal & Bentonite Clay capsules - Sandalwood Face Mask - Detox Bath - Face Wash - Poison Ivy & Oak Relief

What are all the ingredients? Thank you.

Bentonite clay, calcium carbonate, colloidal silver water, sea salt, ionic minerals, mustard seed, essential oils of spearmint, peppermint, eucalyptus, clove, wintergreen, and oregano

ASIN	B01E37YLD2
Active Ingredients	Purified Water, Bentonite clay, calcium carbonate, sea salt, alkalizing ionic minerals, mustard seed, natural menthol, pure essential oils of spearmint, peppermint, eucalyptus, clove, wintergreen, and oregano
Age Range Description	All Ages
Age range (description)	All Ages
Best Sellers Rank	#16,291 in Health ( See Top 100 in Health ) #535 in Toothpaste
Brand	Uncle Harry's
Brand Name	Uncle Harry's
Capacity	85 g
Customer Reviews	4.6 out of 5 stars 237 Reviews
Flavor	Spearmint
Flavour	Spearmint
Item Form	Paste
Item Weight	3 Ounces
Item form	Paste
Manufacturer	Uncle Harry's Natural Products
Material Features	Natural
Material Type Free	Fluoride Free
Material features	Natural
Material type free	Fluoride Free
Number of Items	4
Package Quantity	4
Package Type Name	Jar
Packaging Feature	Spout
Product Benefits	Remineralization
Recommended Uses For Product	Dental care, cavity prevention, plaque removal, fresh breath
Target Audience	Unisex Adults
Unit Count	12 Grams

Uncle Harry's Spearmint Remineralizing Toothpaste | Natural Whitening Toothpaste Freshens Breath & Promotes Enamel | Vegan Fluoride Free Toothpaste Pack of 4

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