Butylene Glycol vs Polyglutamic Acid
Butylene Glycol
Lightweight humectant and solvent
Polyglutamic Acid
Amino acid polymer — holds 5x more moisture than HA
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Lightweight humectant and solvent
Amino acid polymer — holds 5x more moisture than HA
Butylene Glycol is categorised as "Draws in moisture" while Polyglutamic Acid 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.
Butylene Glycol is found in 470 products, while Polyglutamic Acid is found in 3 products in our database.
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