1-Naphthol vs CI 45380 / RED 21
1-Naphthol and CI 45380 / RED 21 are both added colour ingredients. 1-Naphthol is found in 1 product while CI 45380 / RED 21 appears in 1, making 1-Naphthol the more widely used option.
Added colour
1-Naphthol
Added colour
1 products
Added colour
CI 45380 / RED 21
Colour pigment
1 products
Top products with 1-Naphthol
Top products with CI 45380 / RED 21
Frequently asked questions
What is the difference between 1-Naphthol and CI 45380 / RED 21?
1-Naphthol is categorised as "Added colour" while CI 45380 / RED 21 is categorised as "Added colour". They serve different functions in skincare formulations.
Can I use 1-Naphthol and CI 45380 / RED 21 together?
In most cases, these ingredients can be used together. However, always patch test and introduce new ingredients gradually.
Which is more common in skincare products?
1-Naphthol is found in 1 products, while CI 45380 / RED 21 is found in 1 products in our database.