Bis-Lauryl/Peg-8 Lauryl Peg-8 Methicone: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 23, 2025
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All information on this page is verified using The Personal Care Products Council's (PCPC) INCI database. Our ingredient analyses are based exclusively on PCPC's technical data to ensure accuracy and reliability.

What Is Bis-Lauryl/Peg-8 Lauryl Peg-8 Methicone?

Bis-Lauryl/PEG-8 Lauryl PEG-8 Methicone is a silicone-based compound created by modifying Bis-Hydrogen Methicone with a blend of PEG-8 allyl ether and dodecene. The result is a lightweight molecule that combines a silicone backbone with small portions of polyethylene glycol and lauryl (coconut-derived) chains, giving it both oil-loving and water-loving parts. This dual nature lets it interact smoothly with skin oils while still rinsing away with water.

Silicones gained cosmetic popularity in the 1950s for their silky feel and ability to form breathable films. Over time chemists looked for ways to make them more versatile, which led to grafting PEG chains and fatty alcohol groups onto the base structure. Bis-Lauryl/PEG-8 Lauryl PEG-8 Methicone emerged from that research as an ingredient that could clean and stabilize formulas without leaving a heavy residue.

Manufacturing starts with Bis-Hydrogen Methicone. Through a controlled addition reaction, its reactive hydrogens are replaced by PEG-8 allyl ether segments and lauryl groups derived from plant oils. This produces a clear fluid that is purified and quality-checked before use in cosmetics.

You will most often see this ingredient in facial cleansers, micellar waters, two-phase makeup removers, lightweight moisturizers, hair shampoos, sunscreens, sheet masks and some long-wear foundations where easy rinse-off and a soft finish are priorities.

Bis-Lauryl/Peg-8 Lauryl Peg-8 Methicone’s Cosmetic Benefits/Uses

This ingredient earns its place in a formula by performing two main jobs that improve both product texture and skin feel.

  • Cleansing: Thanks to its amphiphilic structure, it helps break down sebum, sunscreen and makeup, lifting them from the skin or hair so they can be washed away without stripping natural moisture. The silicone portion leaves behind a smooth sensation that avoids the squeaky-tight feel some cleansers cause.
  • Emulsifying: It keeps water and oil components blended together, preventing separation over a product’s shelf life. This stabilizing action means creams stay uniformly silky, micellar waters remain clear and sunscreens maintain even dispersion of UV filters for consistent protection.

Who Can Use Bis-Lauryl/Peg-8 Lauryl Peg-8 Methicone

Because it is lightweight and rinses clean, Bis-Lauryl/PEG-8 Lauryl PEG-8 Methicone suits most skin types including oily, combination, normal and even dry skin that dislikes heavy residues. Sensitive skin usually does well with silicones, yet anyone highly reactive to PEGs might prefer to proceed with caution. The ingredient is non-comedogenic for the vast majority of users so acne-prone skin can typically use it without concern.

The compound is made from silicon, synthetic PEG segments and lauryl chains sourced from coconut or other plant oils. No animal-derived substances are involved, making it appropriate for both vegans and vegetarians.

Current cosmetic safety reviews find no evidence that topical use poses a risk during pregnancy or while breastfeeding. This article is not medical advice so expectant or nursing individuals should show any skincare routine to their doctor just to be safe.

Unlike some acids or retinoids, Bis-Lauryl/PEG-8 Lauryl PEG-8 Methicone does not increase photosensitivity. Standard daytime sun protection is still recommended, but the ingredient itself will not make skin more prone to sunburn.

Potential Side Effects/Adverse Reactions

Side effects can vary from person to person. The points below outline potential reactions, yet most users will not experience them when the ingredient is used correctly in a well-formulated product.

  • Mild skin irritation or redness in individuals sensitive to silicones or PEGs
  • Transient stinging if applied to broken or abraded skin
  • Eye irritation if the product accidentally gets into the eyes
  • Occlusive feel or film build-up when layered with multiple silicone-rich products
  • Isolated breakouts in very clog-prone skin when used in leave-on formulas

If any discomfort, persistent redness or breakout occurs stop using the product and consult a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 1 / 5 (very low)

Bis-Lauryl/PEG-8 Lauryl PEG-8 Methicone is built on a breathable silicone backbone that does not readily mix with skin proteins or settle into pores. Its PEG and lauryl segments boost water rinse-off so residue is unlikely to linger and clog follicles. Because it is lightweight, spreads thinly and washes away with normal cleansing, the risk of pore blockage is minimal, earning it a score of 1 rather than a perfect 0 for the small chance of film build-up when layered with other heavy silicones.

In practical terms, most people prone to acne or breakouts should find this ingredient compatible with their skin.

Formulas that combine it with thick waxes or heavy oils may alter the overall comedogenic profile, so always consider the whole product, not just one ingredient.

Summary

Bis-Lauryl/PEG-8 Lauryl PEG-8 Methicone serves mainly as a cleanser and emulsifier. Its silicone backbone provides slip and a breathable film while the attached PEG-8 and lauryl groups give the molecule both water-loving and oil-loving sides. This duality lets it lift makeup, sunscreen and excess sebum from the skin or hair then rinse away cleanly, and it also holds oil and water together so creams, micellar waters and sunscreens stay smooth and stable.

Although not as famous as dimethicone or cyclopentasiloxane, the ingredient is popping up more often in modern lightweight cleansers, two-phase removers and sheer lotions that aim for a fresh feel without residue.

Current research and cosmetic panel reviews show it to be very safe for topical use with only rare reports of mild irritation. As with any new product, patch testing on a small area first is a smart move to confirm personal tolerance.

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