Patent ID: 11918371
Assignee: IEVA
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 5:
6. The method of claim 1, further comprising estimating a sebum rate of a specific area of said user's face, wherein estimating the sebum rate comprises:
applying a sebum patch to said specific area of said user's face, wherein said sebum patch comprises a reference surface and a measurement surface covered with an absorbing surface, wherein said measurement surface and said absorbing surface comprising two distinct colors, and wherein said reference surface comprises a reference color;
removing said sebum patch after a predetermined time period, so that said absorbing surface becomes at least partially transparent by absorbing the sebum present on said specific area of said user's face, wherein said measurement surface becomes at least partially visible;
taking a picture of said sebum patch in such a way as to include said reference surface and said measurement surface; and
determining, on the picture, the sebum rate by analysis of a transparency percentage of said absorbing surface with respect to said reference color.