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1-Naphthol and CI 15850 / RED 7 are both added colour ingredients. 1-Naphthol is found in 1 product while CI 15850 / RED 7 appears in 7, making CI 15850 / RED 7 the more widely used option.
Added colour
Colour pigment
Olia Hårfarge Metallic Silver 9.11
L'Oreal Plump in Gloss Brillant Signature Soar 402
L'Oreal Plump in Gloss Signature Inflate
L'Oreal Plum in Gloss Brilliant Amplify 406
L'Oreal Plump in Gloss Brillant Signature Maximize
Superstay Matte Ink 65 Seductress
1-Naphthol is categorised as "Added colour" while CI 15850 / RED 7 is categorised as "Added colour". They serve different functions in skincare formulations.
In most cases, these ingredients can be used together. However, always patch test and introduce new ingredients gradually.
1-Naphthol is found in 1 products, while CI 15850 / RED 7 is found in 7 products in our database.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.