Silicone

Methylsilanol Hydroxyproline Aspartate

INCI: METHYLSILANOL HYDROXYPROLINE ASPARTATE

Reviewed by Daisy · Last updated 2 Jun 2026

A silicone-based conditioning agent that smooths and protects the skin barrier

Best For Skin Types

All, Dry, Sensitive, Mature

Addresses

Dryness, Barrier repair, Sensitivity

Usage Frequency

Daily

What Is Methylsilanol Hydroxyproline Aspartate?

Methylsilanol Hydroxyproline Aspartate is a hybrid ingredient combining silicone chemistry with amino acid derivatives. It functions as a skin conditioning agent, designed to create a protective, smoothing layer on the skin's surface.

This ingredient belongs to a class of silicone-based compounds used in cosmetics to improve texture, reduce friction, and support the skin barrier. It's typically found in moisturisers, serums, and barrier-repair formulations.

How It Works

Methylsilanol Hydroxyproline Aspartate works by depositing a thin, occlusive layer on the skin. The silicone component provides slip and smoothness, while the hydroxyproline and aspartate elements (amino acid derivatives) offer conditioning properties that support skin softness.

The antistatic effect helps minimise the electrical charge that can occur between skin and fabrics or applicators, potentially reducing micro-irritation from friction during application or wear.

Clinical Evidence & References

Published clinical data specifically on Methylsilanol Hydroxyproline Aspartate remains limited. However, silicone-based conditioning agents in general have a long history of safe use in cosmetics and are well-documented to improve skin feel and temporary smoothness.

The ingredient is likely most useful for supporting barrier function and texture in dry or compromised skin, though robust clinical trials specific to this compound would strengthen confidence in these claims.

How to Use

This ingredient is typically formulated by manufacturers at optimal concentrations, so no special application technique is required. Use as directed in your chosen product — usually once or twice daily as part of your regular skincare routine. It pairs well with humectants and occlusives in moisturiser formulations.

Safety & Precautions

Methylsilanol Hydroxyproline Aspartate is generally well-tolerated and has a good safety profile in cosmetic use. It is not known to be a skin sensitiser, though individuals with silicone sensitivity should patch-test first.

Frequently Asked Questions

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