Non-Toxicity Score (NTS) is calculated on a 0-10 scale - higher is better. It measures the degree to which a product passes toxicity limit checks in Unbox Health's lab tests. This product's NTS was calculated using a combination of the following derived values - Lead Non-Toxicity: 1.00, Arsenic Non-Toxicity: 1.00, Cadmium Non-Toxicity: 1.00, Mercury Non-Toxicity: 1.00.