Blue 4
Blue 4
Also known as: blue-4
BLU
1/10
Concern level
Low concern
Blue 4 is a synthetic dye used for coloring cosmetic products. It is considered safe for use in cosmetics.
Benefits
Soothing
Chemical Properties
pH Range
5.00 - 7.00Typical Concentration
0.01% - 0.50%CAS Number: 0
Skin Type Compatibility
dry skin6/10
oily skin6/10
sensitive skin4/10
acne prone5/10
mature skin6/10
normal skin6/10
Interactions
incompatible with: None known.
Risks & Warnings
May cause allergic reactions in sensitive individuals.
Vegan Cruelty-Free