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

AMINO ESTERS-2.

Valuable / SKIN CONDITIONING

AMINO ESTERS-2 is a specialized cosmetic ingredient, recognized primarily in the Japanese cosmetic industry. It comprises a mixture of Aspartic Acid, Glycine, Glutamic Acid, and their corresponding esterified forms.

Skin-conditioning agent Humectant

Science

This ingredient functions as a skin-conditioning agent and humectant, mimicking the skin's Natural Moisturizing Factor (NMF) to attract and bind water within the stratum corneum. Its esterified form enhances lipophilic affinity, improving skin softening and barrier reinforcement while facilitating active ingredient penetration.


Research

High confidence
Effective range 0.1–2%
Optimal

N/A

Key findings

  1. 01 Clinical studies on amino acid ester blends demonstrate significant improvements in skin hydration and moisture retention.
  2. 02 Research indicates enhanced penetration of other active ingredients due to its modification of the stratum corneum's lipid bilayer.

Transparency

Not commonly dusted

The Formula

Solubility
Both
Optimal pH 5 – 7
0 7 14

Stability

Most stable within the physiological pH range (5.0-7.0). Extreme pH (<3 or >9) or prolonged high temperatures can lead to hydrolysis.

Synergies

  • Active ingredients (enhanced penetration)

Conflicts

  • Strong oxidizing agents
  • Strong acids
  • Strong bases

Safety

CIR Status
Safe as used
Sensitization risk Low

As a derivative of endogenous amino acids (Aspartic Acid, Glutamic Acid, Glycine), it exhibits a high safety profile with low systemic toxicity.


Your Skin

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

Our Assessment

Valuable

AMINO ESTERS-2 is a valuable ingredient for advanced hydration, barrier support, and enhancing the efficacy of other actives due to its NMF-mimicking and penetration-boosting properties.


Related

Finding similar ingredients…


References