Ingredient review
PEG-7 Caprylic/Capric Glycerides
INCI: PEG-7 Caprylic/Capric Glycerides
A gentle, water-friendly emollient that helps hydrate and soften skin without clogging pores, commonly used in rinse-off and leave-on products.
In plain English
PEG-7 Caprylic/Capric Glycerides is a semi-synthetic ingredient made by attaching a small PEG chain to fatty acids from coconut oil. It acts like a bridge between oil and water, allowing it to mix easily into water-based formulas. In skincare, it helps moisturize by leaving a light, non-greasy film on the skin that reduces water loss. It also helps other ingredients spread evenly and can boost the foaming or cleansing power of washes without stripping the skin.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
PEG-7 Caprylic/Capric Glycerides 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-7 Caprylic/Capric Glycerides.
- 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 semi-synthetic compound made by reacting caprylic/capric glycerides (derived from coconut oil and glycerin) with ethylene oxide (PEG). The result is a water-soluble emollient that feels light and non-oily.
How it works
It works as both an emollient and a surfactant. As an emollient, it softens the skin by filling gaps between skin cells and reducing water evaporation. As a surfactant, it lowers surface tension so that oils and dirt can be rinsed away more easily. Its PEG chain makes it water-soluble, so it doesn't leave a heavy residue.
Pros
Lightweight hydration
Leaves a soft, non-greasy feel on the skin, making it ideal for daytime use or under makeup.
Gentle cleansing
Helps remove dirt and oil without stripping the skin's natural moisture barrier, suitable for sensitive skin.
Cons and cautions
PEG purity concerns
If not manufactured to high standards, PEG compounds can contain trace impurities like ethylene oxide or 1,4-dioxane, though reputable brands ensure purification.
Not for strict natural routines
As a semi-synthetic ingredient, it may not appeal to those seeking 100% natural or organic products.
Best for
- People with normal to dry skin looking for light hydration
- Those who prefer water-based, non-greasy moisturizers
Use caution if
- Individuals with known sensitivity to PEG compounds (rare)
Usage tips
Safety summary
PEG-7 Caprylic/Capric Glycerides is considered safe for cosmetic use at typical concentrations. It has low irritation and comedogenic potential. As with all PEG derivatives, quality control during manufacturing is important to minimize trace impurities.
Research notes
The Cosmetic Ingredient Review (CIR) panel has reviewed PEG derivatives and found them safe for use in cosmetics. Studies indicate low skin irritation and sensitization potential. No significant human or animal toxicity concerns at cosmetic levels.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions. The Cosmetic Ingredient Review (CIR) panel has deemed it safe as used in rinse-off and leave-on products.
- Common uses
- Cleansers, Moisturizers, Serums, Toner, Makeup removers
- Environmental note
- PEG compounds are generally biodegradable, but the manufacturing process involves ethylene oxide, which has environmental considerations. Brands using green chemistry may source purified versions.
Good to know
- PEG-7 Caprylic/Capric Glycerides is often used in micellar waters and gentle cleansers.
- It is considered safe by the Cosmetic Ingredient Review (CIR) panel at typical use levels.
Common questions
What is PEG-7 Caprylic/Capric Glycerides in beauty products?
PEG-7 Caprylic/Capric Glycerides is a semi-synthetic ingredient made by attaching a small PEG chain to fatty acids from coconut oil. It acts like a bridge between oil and water, allowing it to mix easily into water-based formulas. In skincare, it helps moisturize by leaving a light, non-greasy film on the skin that reduces water loss. It also helps other ingredients spread evenly and can boost the foaming or cleansing power of washes without stripping the skin.
What does PEG-7 Caprylic/Capric Glycerides do in a beauty product?
It works as both an emollient and a surfactant. As an emollient, it softens the skin by filling gaps between skin cells and reducing water evaporation. As a surfactant, it lowers surface tension so that oils and dirt can be rinsed away more easily. Its PEG chain makes it water-soluble, so it doesn't leave a heavy residue.
Is PEG-7 Caprylic/Capric Glycerides safe for most people?
PEG-7 Caprylic/Capric Glycerides is considered safe for cosmetic use at typical concentrations. It has low irritation and comedogenic potential. As with all PEG derivatives, quality control during manufacturing is important to minimize trace impurities.
Who should be careful with PEG-7 Caprylic/Capric Glycerides?
Individuals 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.