Common Name(s): Isostearyl myristoyl methyl beta-alaninate,amino acid derived isostearyl ester
DESCRIPTION
What It Does: Conditions skin with an amino acid-derived ester that provides enhanced skin affinity.
Why It's Used: Myristoyl methyl beta-alanine portion provides amino acid-based skin affinity and mild film forming; isostearyl branched c18 provides non-greasy emolliency.
How It Works: Beta-alanine amino acid backbone provides skin protein affinity; n-methylation and myristoylation provide lipophilicity; isostearyl ester provides non-greasy emolliency; combined creates substantive conditioning emollient.
Typically Found In: Premium skin care,amino acid formulas,substantive emollient systems
TECHNICAL DETAILS
Primary Category: Functional ingredient – emollient
Secondary Functions: Skin conditioning,film forming
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%–5%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Isostearic acid synthetic; myristic acid from coconut; beta-alanine from synthetic or fermentation origin; amino acid-derived ester.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low
Sensitivity Concerns: Generally well tolerated.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile. ewg score: 1.
Works Well With: Other amino acid esters,emollients
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Amino acid-derived esters provide enhanced skin substantivity compared to simple fatty acid esters; the beta-alanine backbone provides zwitterionic character at physiological ph improving skin binding.
Last Verified: 2026-03-28
Primary Sources: Cosing database,inci dictionary