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AMARANTHETH-20.

Valuable / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

Amarantheth-20 is an amaranth oil-derived non-ionic emulsifier that stabilizes challenging formulations. It supports skin barrier function and provides antioxidant benefits, leveraging the high squalene content of amaranth.

emulsifying surfactant/cleansing

Science

As an ethoxylated surfactant, Amarantheth-20 reduces interfacial tension between oil and water, facilitating stable liquid crystal emulsion formation. Its amaranth base provides emollients like squalene and tocopherols, replenishing the skin's lipid barrier to reduce TEWL.


Research

Medium confidence
Effective range 0.5–5%
Optimal

N/A

Key findings

  1. 01 Amaranth-derived compounds, the base for Amarantheth-20, offer pre- and post-UVA protection and enhance skin barrier repair via high squalene content.

Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH 5 – 7
0 7 14

Stability

This ingredient effectively stabilizes high-oil phase emulsions (30%+) by forming liquid crystals. It should be added to the oil phase and heated to approximately 80°C for optimal integration.

Synergies

  • Cetearyl Alcohol
  • Glyceryl Stearate

Conflicts

  • Strong oxidizing agents
  • Highly acidic environments

Safety

CIR Status
Not reviewed
Max tested
6%
Sensitization risk Low

While not specifically reviewed by CIR as a standalone, this class of ingredients is generally safe when formulated to be non-irritating. Potential for 1,4-dioxane contamination exists due to the ethoxylation process.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Valuable

Amarantheth-20 is a valuable emulsifier that enhances skin barrier function and provides antioxidant support, making it ideal for stable, luxurious formulations across all skin types.


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