Ingredient review
PPG-25 Glycereth-22
INCI: PPG-25 Glycereth-22
A gentle, water-binding ingredient that helps keep skin hydrated and improves product feel without common irritation.
In plain English
PPG-25 Glycereth-22 is a lab-made molecule that acts like a sponge for water. It pulls moisture into the outer layer of your skin and helps other ingredients spread smoothly. Think of it as a helper that makes your moisturizer feel lighter and more hydrating, without the stickiness some humectants can leave behind.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PPG-25 Glycereth-22 is generally a lower-concern ingredient when the full formula suits your skin.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging PPG-25 Glycereth-22.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
PPG-25 Glycereth-22 is a synthetic polymer made by combining propylene glycol (a type of alcohol) with glycerin (a natural humectant) and ethylene oxide. This creates a large, water-loving molecule that stays on the skin's surface to attract and hold moisture.
How it works
It works by forming a thin, invisible film on the skin that binds water molecules from the environment and the deeper layers of the skin. This film also helps other ingredients spread more evenly and reduces the greasy or tacky feel of oils and thickeners.
Pros
Lightweight hydration
Attracts water to the skin without leaving a heavy or sticky residue, making it ideal for daytime use and under makeup.
Improves product feel
Helps serums and moisturizers spread more smoothly and absorb faster, enhancing the overall user experience.
Cons and cautions
Synthetic origin
Derived from petrochemicals, which may be a concern for those seeking natural or plant-based ingredients.
Potential tackiness at high levels
In very high concentrations (above 10%), it can leave a slightly sticky or film-like feel on the skin.
Best for
- People with normal to oily skin looking for lightweight hydration
- Those with sensitive skin who react to common humectants like hyaluronic acid or glycerin
Use caution if
- Individuals who strictly avoid synthetic or petrochemical-derived ingredients
Usage tips
Safety summary
PPG-25 Glycereth-22 has a low irritation and comedogenic risk. It is well-tolerated by most skin types, including sensitive skin. No significant safety concerns have been reported in cosmetic use at typical concentrations.
Research notes
Research on PPG-25 Glycereth-22 is limited but consistent with other PPG and glycereth compounds, which are widely used and considered safe. Studies on similar ethoxylated glycerins show good skin compatibility and hydration benefits.
Common label clues
- Typical concentration
- Typically 0.5% to 5% in leave-on products, up to 10% in rinse-off formulas
- Regulatory status
- Approved for use in cosmetics by the FDA (as part of the generally recognized as safe list for indirect food contact) and by the European Chemicals Agency (ECHA) under the EU Cosmetics Regulation.
- Common uses
- Serums, Moisturizers, Cleansers, Toners
- Environmental note
- As a synthetic polymer, it is not biodegradable and may persist in water systems. However, it is used in low concentrations and is not considered a major environmental concern compared to microplastics.
Good to know
- PPG-25 Glycereth-22 is often used in combination with other humectants to boost overall hydration without increasing stickiness.
- It is considered safe by major regulatory bodies when used in cosmetic concentrations.
Common questions
What is PPG-25 Glycereth-22 in beauty products?
PPG-25 Glycereth-22 is a lab-made molecule that acts like a sponge for water. It pulls moisture into the outer layer of your skin and helps other ingredients spread smoothly. Think of it as a helper that makes your moisturizer feel lighter and more hydrating, without the stickiness some humectants can leave behind.
What does PPG-25 Glycereth-22 do in a beauty product?
It works by forming a thin, invisible film on the skin that binds water molecules from the environment and the deeper layers of the skin. This film also helps other ingredients spread more evenly and reduces the greasy or tacky feel of oils and thickeners.
Is PPG-25 Glycereth-22 safe for most people?
PPG-25 Glycereth-22 has a low irritation and comedogenic risk. It is well-tolerated by most skin types, including sensitive skin. No significant safety concerns have been reported in cosmetic use at typical concentrations.
Who should be careful with PPG-25 Glycereth-22?
Individuals who strictly avoid synthetic or petrochemical-derived ingredients
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.