The presence of heavy metals such as lead, arsenic, cadmium, mercury, chromium, cobalt, and nickel in cosmetic products may not only causes adverse effects on the product (instability), but can also endanger the health of the consumer (Toxicity, Sensitization, redness, etc.).
These metals can be present as impurities, color additives, or preservatives. While some are intentionally added, many occur as contaminants during manufacturing. Therefore, adding chelating agents, also called sequestering agents, can eliminate or reduce the consequences of the presence of heavy metals in products. These compounds trap heavy metals, make them inaccessible, and block their activity.
The main functions of chelating compounds in cosmetic products are:
Preventing product spoilage, Strengthening the product’s immune system, Stabilizer, Reducing water hardness.