Kit comprises at least two different compositions packaged separately, at least one compound (X), at least one compound (Y), optionally at least one catalyst or at least one peroxide, and at least one hydrophobic filtering system, which comprises: e.g. at least one hydrophobic organic sunscreen (A) and optionally a mineral filter (D). Kit comprises at least two different compositions packaged separately, at least one compound (X), at least one compound (Y), optionally at least one catalyst or at least one peroxide, and at least one hydrophobic filtering system, which comprises: at least one hydrophobic organic sunscreen (A) capable of absorbing UV radiation of 320-400 nm and at least one hydrophobic organic sunscreen (B) capable of absorbing the UV radiation of 280-320 nm, and optionally a mineral filter (D) at least one hydrophobic organic sunscreen (C) capable of simultaneously absorbing UV radiations of 280-320 nm and 320-400 nm, and optionally a mineral filter (D) or at least one hydrophobic organic sunscreen (A) capable of absorbing UV radiation of 320-400 nm and at least either a hydrophobic organic sunscreen (C) capable of simultaneously absorbing the UV radiation of 280-320 nm and 320-400 nm, a mineral filter (D), where at least one of the compounds (X) and (Y) is siliconized and provided that the compounds (X), (Y) and optionally the catalyst or the peroxide does not present simultaneously in the same composition, and the compounds (X) and (Y) are able to react together by a hydrosilylation reaction in the presence of catalyst or by a condensation reaction or by a crosslinking reaction in the presence of the peroxide, when keratin materials are contacted with each other. Independent claims are included for: (1) a process of photoprotection of a keratin material against UV radiation of above 280 nm covering the UVA and UVB regions, comprising applying the compound (X), the compound (Y), and hydrophobic filter system on the keratin materials (2) film for phot
