Skin Conditioning

Hydrolyzed Collagen Pg-Propyl Methylsilanediol

INCI: HYDROLYZED COLLAGEN PG-PROPYL METHYLSILANEDIOL

Reviewed by Emma · Last updated 20 Jul 2026

Also known as: Hydrolyzed Collagen Pg-propyl Methylsilanediol

A silicone-modified collagen derivative that conditions and supports skin hydration

Best For Skin Types

All, Dry, Mature, Combination

Addresses

Dryness, Hydration, Fine lines

Usage Frequency

Daily

What Is Hydrolyzed Collagen Pg-Propyl Methylsilanediol?

Hydrolyzed Collagen Pg-Propyl Methylsilanediol is a hybrid ingredient that combines hydrolyzed collagen—a breakdown product of collagen protein—with a silicone component (methylsilanediol). This combination is designed to improve both the conditioning and film-forming properties of skincare formulations.

The ingredient functions as a skin conditioner, helping to improve the texture and feel of products whilst potentially supporting the skin's surface hydration. It is commonly found in moisturisers, serums, and other leave-on formulations.

Benefits for Your Skin

How It Works

The hydrolyzed collagen component works as a humectant and conditioning agent, drawing water to the skin's surface and helping to bind moisture there. The silicone portion adds film-forming and slip properties, making the ingredient feel lightweight whilst potentially helping to reduce transepidermal water loss.

Together, these components work to improve skin feel and surface hydration rather than penetrating deeply into the dermis, which is a limitation of topical collagen products generally.

Clinical Evidence & References

Research specifically examining this particular ingredient is limited. Most evidence relates to either hydrolyzed collagen or silicone-based conditioning agents in isolation, rather than this specific combination.

Hydrolyzed collagen has been shown in some studies to support skin hydration and elasticity when applied topically, though it remains on the skin surface rather than replacing dermal collagen. The silicone component is well-established as safe and effective for conditioning and film-forming in cosmetics. More targeted research would help clarify the combined benefit of this particular ingredient.

How to Use

This ingredient is typically used as part of a complete skincare routine rather than as a standalone treatment. It works well in serums, moisturisers, and essences applied to clean, damp skin. Allow time for the product to absorb before applying further layers. No specific usage restrictions apply, though as with any new product, patch testing is sensible if you have reactive skin.

Safety & Precautions

Generally well-tolerated across skin types. Silicones may cause build-up with repeated use if products are not cleansed thoroughly; ensure adequate cleansing as part of your routine.

Frequently Asked Questions

From the Clinic

Not sure what your skin actually needs?

Two minutes, a few questions, and we’ll point you at what matters — no guesswork.

Take the skin quiz

Learn More About Skincare Ingredients

Explore our comprehensive ingredient glossary to understand what's in your products.

Browse All Ingredients

Authorised Stockist

Official UK retailer

Tracked Delivery

Free UK shipping over £50

5 Star Rating

Trusted by thousands

Expert Advice

Free consultations