PPG-2-Buteth-1

What is PPG-2-Buteth-1?

PPG-2-Buteth-1 is a synthetic glycol ether, chemically a polypropylene glycol ether of butoxyethanol, produced through the reaction of propylene oxide with butanol. This clear, low-viscosity liquid belongs to the class of polyalkylene glycols commonly used in personal care formulations. It appears mainly in hair care products such as shampoos and conditioners, and occasionally in skin care items like lotions. In formulations, it works by depositing a thin lubricating film on hair cuticles and skin surfaces, minimizing friction for easier combing and softer feel. As a humectant, it draws moisture to maintain hydration, while its solvent properties help dissolve fragrances, oils, and active ingredients, enhancing product texture, spreadability, and overall performance without heaviness.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Provides lightweight conditioning to hair, improving manageability and reducing static.

Softens and smooths skin by forming a protective, moisturizing layer.

Aids in solubilizing other ingredients for better product stability and application.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with dry or frizzy hair seeking easier detangling.
Those with known allergies to glycol ethers.
Individuals with normal to dry skin wanting subtle hydration.
People experiencing irritation from similar synthetic emollients.
Users of hair styling products needing friction reduction.
Individuals preferring fully natural ingredient products.

Safety Notes

  • Rated low hazard by EWG with minimal concerns for health or environment.
  • Non-comedogenic, unlikely to clog pores on skin or scalp.

Frequently Asked Questions about PPG-2-Buteth-1

What does PPG-2-Buteth-1 do in cosmetics?

It conditions hair and skin, acts as a humectant for moisture, and solubilizes fragrances for smoother products.

Is PPG-2-Buteth-1 safe for daily use?

It carries a low hazard rating from EWG and is considered safe in typical cosmetic concentrations.

Does it clog pores?

No, it has a comedogenic rating of zero, suitable for acne-prone skin.