Propylene Glycol
A versatile humectant and solvent that helps retain moisture, enhance the texture of formulations, and improve the stability of ingredients in personal care products.
Propylene Glycol is a synthetic organic compound widely used in cosmetics and personal care products for its ability to act as a humectant, solvent, and preservative stabilizer. It works by attracting moisture to the skin, helping to keep the skin hydrated and smooth.
This compound is also known for its ability to improve the texture and spreadability of formulations, making it ideal for use in a variety of personal care products such as moisturizers, shampoos, and body lotions. Additionally, Propylene Glycol helps to dissolve and stabilize active ingredients, ensuring consistent efficacy and performance.
Though it is generally safe for use, Propylene Glycol should be used within recommended concentrations (typically between 1.0% and 5.0%) to avoid potential irritation for sensitive skin types.
FEATURES
- Humectant – attracts moisture to the skin, keeping it hydrated.
- Solvent – helps dissolve active ingredients and stabilize formulations.
- Improves texture – enhances the spreadability and smooth feel of products.
- Preservative stabilizer – helps maintain product stability by preventing ingredient separation.
- Versatile – works well in a wide range of skincare, haircare, and body care formulations.
BEST FOR
- Moisturizers
- Shampoos and conditioners
- Body lotions and creams
- Serums and facial treatments
- Exfoliating scrubs
- Antiperspirants and deodorants
FORMULATION GUIDELINES
| INCI | Propylene Glycol |
|---|---|
| Type | Humectant, solvent, stabilizer |
| Solubility | Water soluble |
| Use Rate | 1.0–5.0%, depending on the desired effect and product type. |
| Best Phase | Water phase or as a co-solvent in the formulation. |
| pH Compatibility | Works well across a wide pH range (4.0–7.0). |
| Temperature Tolerance | Stable under typical processing conditions. Add below 40°C in emulsions to preserve ingredient integrity. |
| Pro Tip | Propylene Glycol works well in water-based formulations, especially in moisturizers, serums, and shampoos. It can be combined with other humectants like glycerin for enhanced hydration. If you’re working on thicker formulations like creams, it can also be used to improve the texture and spreadability. |
| Appearance | Clear, colorless liquid |
| Stability Notes | Stable in most formulations, but high concentrations may cause irritation in some skin types. Perform stability testing to ensure product integrity and safety. |
| Storage | Store in a cool, dry place, away from light and heat in a tightly sealed container. |
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