PPG-17
What is PPG-17?
PPG-17, known chemically as polypropylene glycol with about 17 propylene oxide units, is a synthetic oligomer derived from polymerizing propylene glycol, a petroleum-sourced alcohol. This clear, viscous liquid serves primarily as a humectant, emollient, and solvent in cosmetics, especially in leave-on skincare like moisturizers, serums, and hair products. It works by drawing moisture to the skin's surface, forming a protective film to reduce transepidermal water loss, and improving product texture for even application. Its low viscosity enhances spreadability without greasiness, making it ideal for lightweight formulations. In anhydrous products, it solubilizes other ingredients, boosting stability and efficacy. Compared to longer-chain glycols, PPG-17 offers better penetration and less tackiness, supporting overall skin conditioning in diverse cosmetic categories.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Supports skin softness and flexibility through humectant action.
Enhances product texture for smooth, non-greasy feel.
Helps retain moisture without clogging pores.
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| People with normal to dry skin needing lightweight conditioning. | Those with rare sensitivity to polyalkylene glycols. |
| Individuals preferring fast-absorbing moisturizers. | People avoiding synthetic emollients. |
| Users of lotions or serums seeking improved spreadability. | Individuals preferring fully natural product ingredients. |
Safety Notes
- Assessed as low hazard in cosmetic use by safety reviews.
- Non-comedogenic, unlikely to contribute to pore blockage.
Frequently Asked Questions about PPG-17
What does PPG-17 do in skincare?
It acts as a humectant and emollient to maintain skin softness, smoothness, and moisture balance.
Is PPG-17 safe for daily use?
Safety assessments rate it low hazard for cosmetic applications in typical concentrations.
Does PPG-17 clog pores?
With a comedogenic rating of 0, it does not promote pore clogging.