CI 42090 (BLUE 1) vs Red 4
CI 42090 (BLUE 1) and Red 4 are both added colour ingredients. CI 42090 (BLUE 1) is found in 14 products while Red 4 appears in 1, making CI 42090 (BLUE 1) the more widely used option.
Added colour
CI 42090 (BLUE 1)
Colour pigment
14 products
Added colour
Red 4
Added colour
1 products
Top products with CI 42090 (BLUE 1)
Top products with Red 4
Frequently asked questions
What is the difference between CI 42090 (BLUE 1) and Red 4?
CI 42090 (BLUE 1) is categorised as "Added colour" while Red 4 is categorised as "Added colour". They serve different functions in skincare formulations.
Can I use CI 42090 (BLUE 1) and Red 4 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?
CI 42090 (BLUE 1) is found in 14 products, while Red 4 is found in 1 products in our database.