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CAPRYLYL LAUROYL ARGININAMIDE HCL.

Valuable / ANTIPLAQUE

A sophisticated amino acid-based derivative designed to manage the skin's microbiome through physical interference rather than chemical elimination. This biomimetic ingredient functions as a precision anti-adhesive agent, effectively preventing the formation of problematic bacterial biofilms common in acne-prone skin.

Biofilm inhibitor Skin conditioning agent Microbiome protector Antistatic agent

Science

Unlike traditional biocides that kill bacteria and risk microbial resistance, this molecule acts as a non-cidal barrier. It disrupts the physical and chemical adhesion of pathogenic microorganisms, such as Cutibacterium acnes, to the skin surface, preventing them from congregating into biofilms while preserving the skin's healthy commensal flora.


Research

Medium confidence
Effective range 0.075–0.15%
Optimal

0.1%

Key findings

  1. 01 Clinical evaluations of structurally related HLA molecules demonstrate significant reductions in biofilm formation and surface colonization at concentrations as low as 0.075%.
  2. 02 Research into synergistic acne treatments indicates that when paired with antimicrobial peptides like Oligopeptide-10, it reduces C. acnes colonization without inducing bacterial resistance.

Transparency

Not commonly dusted
Min. effective
0.05%
Red flag below
0.01%

Because this ingredient is effective at very low concentrations (peaking at 0.15%), it is rarely 'dusted' in the traditional sense; however, levels below 0.05% may lack the structural density required to effectively inhibit biofilm formation.


The Formula

Solubility
Water
Optimal pH 4 – 6
0 7 14

Stability

Maintains high stability in slightly acidic aqueous environments. As a cationic derivative, it is highly compatible with the acidic mantle of acne-prone skin.

Synergies

  • Oligopeptide-10
  • Non-ionic surfactants
  • Cationic conditioners

Conflicts

  • Sodium Lauryl Sulfate (SLS)
  • Sodium Laureth Sulfate (SLES)
  • High-density anionic polymers
  • Anionic thickeners

Safety

CIR Status
Not reviewed
Max tested
0.15%
Pregnancy
Safe
Sensitization risk Low

Recognized by the EU CosIng database for its favorable safety profile, stemming from its amino acid structure and non-toxic, non-cidal mode of action.


Your Skin

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

Our Assessment

Valuable

A high-precision, microbiome-respecting antimicrobial alternative that prevents blemish formation without the risk of antibiotic resistance or irritation.


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