Propylene glycol is a colorless, odorless, syrupy liquid that is water-soluble and has hydrating properties. It is a common additive in a wide range of skin care products, including lotions, soaps, shampoos, conditioners, shaving creams, deodorants, and more. Here are some details about propylene glycol in skin care products:
Positive aspects:
- Hydrating: Propylene glycol is a humectant that helps to retain moisture in the skin and aids in better absorption of potent ingredients into the skin.
- Preservative: Propylene glycol can help lengthen the shelf life of skin care products thanks to antimicrobial properties that help prevent the overgrowth of microorganisms.
- Delivery enhancer: Propylene glycol helps other ingredients make their way into the skin, which ultimately helps moisturizers or serums do their job better.
- Solvent: Propylene glycol is a solvent for other ingredients in skin care products.
Negative aspects:
- Irritation: Propylene glycol can cause skin irritation, especially in people with sensitive skin.
- Allergies: Propylene glycol has been associated with irritant and allergic contact dermatitis as well as contact urticaria in humans.
- Enhanced skin absorption: Propylene glycol can enhance the absorption of other ingredients into the skin, which can be a concern if those ingredients are harmful.
It is important to note that propylene glycol is generally considered safe for use in skin care products, and the toxicity level in propylene glycol is negligible and safe for skincare. However, people with sensitive skin or eczema should be cautious when using products containing propylene glycol.
