Get a Free 5ml Mini Now Free 5ml Mini With Every Order of The Mantle
Moumoujus

ACID YELLOW 73.

Optional CAS 2321-07-5 / COLORANT, HAIR DYEING

Acid Yellow 73, also known as D&C Yellow No. 8, is a xanthene dye primarily used as a cosmetic colorant. It provides a distinct yellow-green hue and strong green fluorescence under UV light.

Summary

colorant

Science

Mechanism of Action

This ingredient functions as a colorant and fluorescent tracer due to its xanthene dye structure. It does not possess biological 'active' mechanisms for skin improvement, serving solely to shade or label products.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 7 – 9.8
0 7 14

Stability

Most stable in alkaline conditions (pH 7.0-9.8). It exhibits intense green fluorescence at higher pH, which significantly decreases below pH 5.0.

Conflicts

  • Strong acids
  • Strong oxidizing agents
  • Certain metallic salts

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

Listed as D&C Yellow No. 8 in the US, where FDA permits its use in certified cosmetic batches. Its use is restricted/prohibited in some regions (e.g., Europe/UK) for certain cosmetic applications.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Optional

Primarily a cosmetic colorant, Acid Yellow 73 enhances product aesthetics without providing active skincare benefits.

Related

Similar Ingredients

Finding similar ingredients…

References

Sources