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1-Naphthol and C Blue No are both added colour ingredients. 1-Naphthol is found in 1 product while C Blue No appears in 1, making 1-Naphthol the more widely used option.
Added colour
Added colour
Olia Hårfarge Metallic Silver 9.11
1-Naphthol is categorised as "Added colour" while C Blue No 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 C Blue No is found in 1 products in our database.
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