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1-Naphthol and 5-Diamine are both added colour ingredients. 1-Naphthol is found in 1 product while 5-Diamine appears in 24, making 5-Diamine the more widely used option.
Added colour
Added colour
Olia Hårfarge Metallic Silver 9.11
1-Naphthol is categorised as "Added colour" while 5-Diamine 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 5-Diamine is found in 24 products in our database.
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