What is propylene glycol used for in cosmetics?

Propylene glycol (1,2-propanediol) is a petroleum-derived ingredient widely used in the cosmetic and personal care industry. It is used as a humectant, solvent, and antimicrobial agent, making it a versatile component in formulas such as creams, gels, shampoos, serums, and deodorants.

Thanks to its ability to retain water and improve product texture, it has been considered for years as a low-cost, multi-benefit functional ingredient. However, its frequent use has generated debate due to the associated risks of irritation and allergies in some people.

Gel deodorant: Is it good?

Gel deodorants and full-body deodorants contain propylene glycol as their main ingredient. Its function in these types of formulas is twofold:

• To carry antimicrobial active ingredients, which help control odor.

• To improve application, creating a smooth and even texture.

While they can be effective in reducing body odor, it is also true that intensive use of propylene glycol has shown side effects, especially on sensitive skin: irritation, dryness, and allergic reactions. For this reason, more and more consumers are looking for alternatives that do not depend on this ingredient.

Propylene Glycol Toxicity (1,2-propylene glycol)

Although propylene glycol is approved as safe in low concentrations by regulatory bodies, numerous cases of allergic contact dermatitis have been documented in clinical practice.
In fact, the American Contact Dermatitis Society (ACDS) listed it as the “Allergen of the Year” in 2018, reflecting the importance of recognizing it as a growing cause of skin irritation in cosmetic and personal care products.

The most common effects include:

• Redness.

• Itching and burning.

• Sensation of extreme dryness.

• Appearance of eczema in areas of frequent use (such as armpits in the case of deodorants).

Propylene Glycol-Free Deodorant

Given these concerns, the demand for propylene glycol-free deodorants has been increasing. At Maxalli, we have developed natural formulas free of this ingredient, focusing on:

• Naturally neutralizing bad odor with active ingredients such as triethyl citrate.

• Caring for sensitive skin, avoiding common irritants like aluminum, alcohol, baking soda, and propylene glycol.

• Options with natural fragrances or no scent, ideal for those seeking maximum softness and safety.

• Biodegradable rigid cardboard packaging, also respecting the environment.

Conclusion

Propylene glycol has important functional uses in cosmetics, especially in products like gels and deodorants, but its potential to cause irritation and allergies means it's not the best option for everyone. If you're looking for a deodorant without propylene glycol, aluminum, or alcohol, Maxalli is a premium, effective, and skin-friendly alternative.