Developing safe products
At the incorrect dose, anything can be dangerous. This is true for plants, which require sunlight but cannot withstand too much exposure. This is also the case for dermo-cosmetic ingredients, which must be at the correct dosage for risk-free action
In life, everything is a question of balance. In the kitchen, a cake requires flour, but also eggs, sugar and so on. For dermo-cosmetics, the same applies: every ingredient is required to make a balanced product.
Some products are designed to act on the skin and not enter the body. This is the case for cosmetics, which must act on the skin and hair without passing through the skin barrier.