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

ACETYL METHYL HYDROXYPROLINATYL GLYCYRRHETINATE.

Valuable / SKIN CONDITIONING

A sophisticated lipophilic ester combining glycyrrhetinic acid from licorice root with hydroxyproline to deliver enhanced skin penetration and dual anti-aging benefits. This premium ingredient targets both inflammation and collagen degradation through complementary pathways. Predominantly featured in high-end Japanese skincare formulations for its superior bioavailability compared to standard glycyrrhetinic acid.

skin-conditioning soothing anti-aging anti-inflammatory collagen support

Science

Functions through dual-pathway action: glycyrrhetinic acid component inhibits 11β-hydroxysteroid dehydrogenase enzyme to reduce inflammatory responses and redness, while the acetyl hydroxyproline moiety acts as a collagen precursor and elastase inhibitor to preserve skin elasticity and firmness. The esterified structure enhances lipophilicity for improved dermal penetration compared to individual components.


Research

Medium confidence
Effective range 0.1–1%
Optimal

0.5%

Key findings

  1. 01 Demonstrated significant reduction in skin redness and improved elasticity through elastase inhibition and collagen fiber protection in Japanese formulation studies

Transparency

Not commonly dusted
Min. effective
0.05%
Red flag below
0.05%

Given its specialized nature and higher cost, concentrations below 0.05% would likely provide minimal therapeutic benefit and suggest formulatory dusting rather than functional inclusion.


The Formula

Solubility
Oil
Optimal pH 5 – 7
0 7 14

Stability

Requires careful thermal management due to ester structure; incorporate into oil phase below 40°C to prevent degradation. Stable in anhydrous systems and oil-in-water emulsions within neutral pH ranges.

Synergies

  • Peptides
  • Ceramides
  • Antioxidants

Conflicts

  • Strong oxidizing agents
  • Strongly acidic formulations (pH < 4.0)

Safety

CIR Status
Not specifically reviewed as complete entity
Max tested
1%
Pregnancy
Safe
Sensitization risk Low

Component ingredients (glycyrrhetinic acid and hydroxyproline) individually recognized as safe for cosmetic use. Listed on EU CosIng database and Japanese Quasi-Drug regulatory frameworks.


Your Skin

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

Our Assessment

Valuable

A well-engineered ingredient combining proven actives with enhanced delivery, though limited independent clinical validation restricts it from essential status.


Related

Finding similar ingredients…