Blue 1 (Ci 42099) vs Red 4
Blue 1 (Ci 42099) and Red 4 are both added colour ingredients. Blue 1 (Ci 42099) is found in 1 product while Red 4 appears in 1, making Blue 1 (Ci 42099) the more widely used option.
Added colour
Blue 1 (Ci 42099)
Added colour
1 products
Added colour
Red 4
Added colour
1 products
Top products with Blue 1 (Ci 42099)
Top products with Red 4
Frequently asked questions
What is the difference between Blue 1 (Ci 42099) and Red 4?
Blue 1 (Ci 42099) is categorised as "Added colour" while Red 4 is categorised as "Added colour". They serve different functions in skincare formulations.
Can I use Blue 1 (Ci 42099) 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?
Blue 1 (Ci 42099) is found in 1 products, while Red 4 is found in 1 products in our database.