According to the California Proposition 65, also known as “Prop 65”, the maximum daily dose for lead must not exceed 15 μg.
NOTE:1 μg = 1 mcg = 1 ug = 1 ppm https://en.wikipedia.org/wiki/Microgram
The lead limits may be found in the following resources:
1. Prop 65 2020 PDF, line 560 (Lead): https://zoiglobal.com/wp-content/uploads/2022/03/2020.12.18-P65-List.pdf
2. Prop 65 2002 PDF, page 16: https://zoiglobal.com/wp-content/uploads/2022/03/2002.06-Prop-65-Lead.pdf
As indicated in resource #2 above, “Based on this potency, the intake level associated with lifetime cancer risk of 10-5 for lead is 15 μg/day.”
In ZOI ClearDrops, Lot# B20R6, Exp. 03/2022, lead is 1.3 ug/serving (i.e 1.3 ug/ml)
The recommended daily dose for ZOI ClearDrops is 1.0 ml.
The consumer gets 1.3 ug of Lead by consuming the recommended daily dose of ClearDrops.
Thus, ZOI ClearDrops passes Prop 65 requirement for lead.
Specifically, ZOI ClearDrops, Lot #B20R6, is 11.5 times better than the Prop 65 requirement. (i.e. 15 / 1.3)