To make informed choices, I use SkinSort to compare products before I buy. It’s essential to remember that skincare product ingredients are listed in order of concentration. This means that the ingredient with the highest percentage appears first, followed by others in decreasing order, until you reach 1%. Once the concentration is at or below 1%, the order is not strictly followed.

This knowledge is crucial when examining a product’s main ingredients. If a key ingredient is listed fourth or twelfth, it indicates a lower concentration, which may affect its effectiveness.