Polybutylene Glycol/PPG-9/1 Copolymer

What Polybutylene Glycol/PPG-9/1 Copolymer is & what it does

Polybutylene Glycol/PPG-9/1 Copolymer is a synthetic copolymer built from polybutylene glycol and polypropylene glycol units. In skincare and sunscreen formulas it works mainly as a skin-conditioning agent and emollient, leaving a smooth, soft feel on the skin. As a polymeric liquid it can also help adjust the texture and spreadability of a product.

What does Polybutylene Glycol/PPG-9/1 Copolymer do in skincare?

It acts mainly as a skin-conditioning agent and emollient. The copolymer leaves a smooth, soft feel on the skin and can help adjust the texture and spreadability of a product such as a sunscreen or moisturizer.

Is Polybutylene Glycol/PPG-9/1 Copolymer natural or synthetic?

It is synthetic. The ingredient is a copolymer made from polybutylene glycol and polypropylene glycol units produced through industrial polymerization, not sourced directly from a plant or animal.

Is Polybutylene Glycol/PPG-9/1 Copolymer vegan?

As a fully synthetic polymer, it does not contain animal-derived materials, so it is generally considered suitable for vegan formulas. If this matters for a specific product, it is best to confirm with the brand, since vegan status can also depend on testing policy.

Sunscreens with Polybutylene Glycol/PPG-9/1 Copolymer

We rate 18 sunscreens that contain it, showing the top 10 by overall score:

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