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1-Naphthol and CI 77499 / IRON OXIDES are both added colour ingredients. 1-Naphthol is found in 1 product while CI 77499 / IRON OXIDES appears in 21, making CI 77499 / IRON OXIDES the more widely used option.
Added colour
Colour pigment
Olia Hårfarge Metallic Silver 9.11
Men Expert Pure Charcoal Clean 100ml
L'Oreal Plump in Gloss Brillant Signature Maximize
L'Oreal Plum in Gloss Brilliant Amplify 406
Gel nettoyant au charbon multi-purifiant Pure Power 5 en 1
L'Oreal Plump in Gloss Brillant Signature Soar 402
1-Naphthol is categorised as "Added colour" while CI 77499 / IRON OXIDES 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 77499 / IRON OXIDES is found in 21 products in our database.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.