Ingredient review
PEG/PPG-27/14 Dimethyl Ether
INCI: PEG/PPG-27/14 Dimethyl Ether
A synthetic humectant that improves the feel and absorption of skincare products without common irritation.
In plain English
PEG/PPG-27/14 Dimethyl Ether is a man-made ingredient that helps other active ingredients penetrate the skin more effectively. It also acts as a humectant, meaning it attracts moisture to the skin's surface, leaving it feeling soft and hydrated. You'll often find it in serums and moisturizers where it improves the texture and spreadability of the product.
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
PEG/PPG-27/14 Dimethyl Ether 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 PEG/PPG-27/14 Dimethyl Ether.
- 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
A synthetic polymer ether derived from polyethylene glycol (PEG) and polypropylene glycol (PPG). It is a clear, water-soluble liquid used primarily as a humectant and penetration enhancer in cosmetics.
How it works
It works by temporarily loosening the tight junctions between skin cells, allowing other ingredients to pass through more easily. At the same time, it draws water from the environment into the outer layer of the skin, boosting hydration.
Pros
Enhances ingredient absorption
Helps active ingredients like vitamin C or hyaluronic acid penetrate deeper into the skin, making your products more effective.
Lightweight hydration
Provides moisture without a heavy or sticky feel, making it ideal for layering under makeup or sunscreen.
Cons and cautions
Synthetic origin
Derived from petroleum-based materials, which may be a concern for those seeking natural or plant-based alternatives.
Limited research on long-term use
While generally considered safe, there is less published research on this specific ingredient compared to classic humectants like glycerin.
Best for
- Anyone looking for better absorption of serums or treatments
- People with normal to combination skin who want lightweight hydration
Use caution if
- Those with known sensitivity to PEG compounds (rare)
Usage tips
Safety summary
PEG/PPG-27/14 Dimethyl Ether is considered safe for cosmetic use at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types. Those with rare PEG sensitivities should patch test first.
Research notes
Research on this specific compound is limited, but studies on similar PEG/PPG ethers indicate they are effective penetration enhancers with low toxicity. The Cosmetic Ingredient Review has deemed related ingredients safe for topical use.
Common label clues
- Typical concentration
- 1–5%
- Regulatory status
- Approved for use in cosmetics in the EU, USA, and other major markets. The Cosmetic Ingredient Review (CIR) panel has evaluated related PEG ethers and found them safe at typical use levels.
- Common uses
- Serums, Moisturizers, Toners
- Environmental note
- As a synthetic polymer, it is not biodegradable and may accumulate in water systems. However, it is used in small amounts in rinse-off and leave-on products.
Good to know
- This ingredient is often listed near the middle or end of an ingredient list, indicating it is used at moderate concentrations.
- It is not the same as PEG compounds used in some cleansers that can cause irritation — this ether form is much milder.
Common questions
What is PEG/PPG-27/14 Dimethyl Ether in beauty products?
PEG/PPG-27/14 Dimethyl Ether is a man-made ingredient that helps other active ingredients penetrate the skin more effectively. It also acts as a humectant, meaning it attracts moisture to the skin's surface, leaving it feeling soft and hydrated. You'll often find it in serums and moisturizers where it improves the texture and spreadability of the product.
What does PEG/PPG-27/14 Dimethyl Ether do in a beauty product?
It works by temporarily loosening the tight junctions between skin cells, allowing other ingredients to pass through more easily. At the same time, it draws water from the environment into the outer layer of the skin, boosting hydration.
Is PEG/PPG-27/14 Dimethyl Ether safe for most people?
PEG/PPG-27/14 Dimethyl Ether is considered safe for cosmetic use at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for most skin types. Those with rare PEG sensitivities should patch test first.
Who should be careful with PEG/PPG-27/14 Dimethyl Ether?
Those with known sensitivity to PEG compounds (rare)
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.