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Analyzing the absorbance spectrum of a cosmetic product or ingredient, such as UV filters, plays a crucial role in the field of sun protection. It allows us to examine the effectiveness and spectrum of UV protection (from 290 nm to 400 nm).<\/p>\n
This evaluation is carried out by plotting the absorption curve, either by applying the product to a suitable substrate, or by diluting it directly in a solution. Measurement is then performed using a spectrophotometric technique.<\/p>\n