Cosmetic and dermatological formulations containing at least one UV-sensitive active ingredient have increased UV protection and have the active ingredient stabilized against decomposition through addition of at least one dialkyl naphthalate of the structural formula ##STR00001## wherein R.sup.1 and R.sup.2 are selected independently of one another from the group consisting of branched and unbranched alkyl groups having between 6 and 24 carbon atoms, and at least one emulsifier, selected from the group consisting of phosphate and sulphate emulsifiers.

 
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> Dye composition comprising at least one direct dye of the azo-pyridinio-pyridone family and at least one different synthetic dye, and process

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