The Index · Supporting active / salt
Blue 1
Blue 1
Blue 1 is a supporting active, amino acid, or salt in moisturisers and serums.
FunctionalFunctional ingredient, not graded for skin benefits
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Blue 1 is a supporting active, amino acid, or salt in moisturisers and serums.
What it does
Supporting NMF-type, vitamin, or mineral salt ingredient in moisturisers and serums.
The evidence
Functional ingredient (not graded for skin benefits): Supporting amino acid, vitamin derivative, or salt; usually present below featured-active levels. Credible chemical identity and cosmetic-use context come from CIR/SCCS/manufacturer INCI definitions and databases such as SpecialChem/PubChem[1].
How to use it
Expect this as a supporting INCI line item unless labelled as a featured active.
What it does in the formula
Functional ingredient — not graded for skin benefits
Blue 1 is a supporting active, amino acid, or salt in moisturisers and serums.[1]
Safety & limits
Source and region, always
all — Used in cosmetics within conventional leave-on/rinse-off levels; see cited safety literature.[1] CA US EU UK
Sources · 2
Numbered as cited in the text
- [1]Cosmetic Ingredient Review. Cosmetic Ingredient Review safety assessment. CIR (2010)regulator
- [2]SpecialChem. SpecialChem INCI profile: Blue 1. SpecialChem (2024)other
Revision history
18 Sept 2026Drafted by botTheSkindex Desk