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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 1, making 1-Naphthol the more widely used option.
Added colour
Colour pigment
Olia Hårfarge Metallic Silver 9.11
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 1 products in our database.
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