propylene glycol vs butylene glycol vs propanediol: virtually the same?
Are these ingredients nearly exactly the same in form and function? Both are solvents and humectants. The only difference I could find online was that propylene glycol has a greater potential to cause irritation, and that butylene glycol is thicker. Is that true? Does butylene glycol add nice body to the texture of your solution? Does it help the product spread more easily, compared to propylene glycol… or are they the same in that regard too?
Also curious about propanediol and how it compares to the above mentioned ingredients, as well as glycerin. I often read comments where someone suggests you replace the solvent with glycerin.
It just seems like if given the choice, butylene glycol is always the way to go especially over propylene glycol. .
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