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1-Naphthol and Approved Colour are both added colour ingredients. 1-Naphthol is found in 1 product while Approved Colour 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 Approved Colour 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 Approved Colour is found in 1 products in our database.
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