PPG-17
Reviewed by Emma · Last updated 14 Aug 2026
A conditioning agent that helps maintain skin moisture and product texture
Best For Skin Types
All, Dry, Sensitive
Addresses
Usage Frequency
Daily
What Is PPG-17?
PPG-17 is a polypropylene glycol, a synthetic polymer derived from propylene glycol. It belongs to a family of conditioning agents commonly used in skincare formulations to improve texture, stability, and feel.
In skincare products, PPG-17 functions primarily as a skin conditioning agent, helping to maintain hydration and improve the overall sensory experience of a product. It can also act as a solvent, assisting in dissolving other ingredients and adjusting product consistency.
How It Works
PPG-17 works by depositing a thin, lightweight conditioning film on the skin's surface. This layer helps reduce transepidermal water loss (TEWL)—the natural evaporation of moisture from the skin—without occluding pores or feeling heavy.
In the formulation itself, PPG-17 improves texture by adjusting viscosity and enhancing the way a product feels when applied, which can contribute to better compliance and user experience.
Clinical Evidence & References
Polypropylene glycols, including PPG-17, have been evaluated for safety in cosmetic use and are generally recognised as well-tolerated in skincare formulations. Safety assessments have found no evidence of dermal sensitisation at typical use concentrations.
Research on PPG-17 specifically remains limited; most evidence comes from broader studies of the polypropylene glycol family. More targeted clinical data on its conditioning efficacy would help clarify its benefits, though its long history of use in cosmetics suggests a reasonable safety profile.
How to Use
PPG-17 is typically incorporated into formulations by manufacturers rather than used as a standalone ingredient, so you'll encounter it as part of serums, moisturisers, and other skincare products. There is no need for special handling or adjustment to your routine; simply use the product as directed on the label.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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