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Glycerin and Polybutylene Glycol / Ppg--9/1 Copolymer are both draws in moisture ingredients. Glycerin is found in 2361 products while Polybutylene Glycol / Ppg--9/1 Copolymer appears in 1, making Glycerin the more widely used option.
One of the most effective humectants
Glycol-based humectant
Nutrient-Charged Water Gel
Glycerin is categorised as "Draws in moisture" while Polybutylene Glycol / Ppg--9/1 Copolymer is categorised as "Draws in moisture". They serve different functions in skincare formulations.
In most cases, these ingredients can be used together. However, always patch test and introduce new ingredients gradually.
Glycerin is found in 2361 products, while Polybutylene Glycol / Ppg--9/1 Copolymer is found in 1 products in our database.
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© 2026 Gracie. All rights reserved. Data sourced from Open Beauty Facts (ODbL) and EU CosIng.