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DISODIUM SEBACOYL BIS-LAURAMIDOLYSINE.

Valuable / HAIR CONDITIONING, SKIN CONDITIONING

Disodium Sebacoyl Bis-Lauramidolysine is an amino acid-derived ingredient formulated from L-Lysine, Lauric acid, and Sebacic acid. It functions primarily as a skin and hair conditioning agent, enhancing texture and promoting a silky feel. Additionally, it serves as a sophisticated texture modifier and foam booster in various formulations.

Summary

Hair Conditioning Skin Conditioning Texture Modifier Foam Booster Hydrogelator

Science

Mechanism of Action

This ingredient operates as an amphoteric surfactant, distinguished by its unique 'Gemini-type' chemical structure. This structure enables it to act as a hydrogelator, forming a three-dimensional network of nanofibers within a precise pH range of 5.0-6.5. In cleansing formulations, it effectively stabilizes foam structure, accelerating lather speed and augmenting volume. On the skin and hair, it delivers a characteristic silky smoothness by maintaining optimal conditioning.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 5 – 6.5
0 7 14

Stability

Optimal hydrogel formation via a three-dimensional nanofiber network is observed specifically around pH 6.0, or generally between pH 5.0 and 6.5. The raw material AMISAFE® LL-DS-22, containing 10% Disodium Sebacoyl Bis-Lauramidolysine in 90% Aqua, demonstrates this property.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has not formally assessed Disodium Sebacoyl Bis-Lauramidolysine. However, it is generally considered non-irritating, with SkinSAFE identifying it as 'Irritant Free', 'Teen SAFE', 'Lip SAFE', 'Baby SAFE', and 'Eyelid SAFE', indicating a broad safety profile. A minimal potential for sensitivity may exist for individuals with known peptide allergies or extremely sensitive skin. Paula's Choice suggests that while generally well-tolerated, the risk of irritation could increase when combined with other potentially problematic ingredients.

Your Skin

Skin Compatibility

No Normal
Yes Dry
No Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

Disodium Sebacoyl Bis-Lauramidolysine is a valuable ingredient for enhancing product texture, boosting foam, and conditioning skin and hair, with a generally low sensitization risk in its optimal pH range.

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