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1-Naphthol and 2-Methylresorcinol are both added colour ingredients. 1-Naphthol is found in 1 product while 2-Methylresorcinol appears in 14, making 2-Methylresorcinol the more widely used option.
Added colour
Added colour
Olia Hårfarge Metallic Silver 9.11
1-Naphthol is categorised as "Added colour" while 2-Methylresorcinol 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 2-Methylresorcinol is found in 14 products in our database.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.