Ingredient review
Polyglyceryl-5 Dicaprylate
INCI: Polyglyceryl-5 Dicaprylate
A gentle, non-irritating emulsifier that helps create stable, lightweight formulas without stripping the skin.
In plain English
Polyglyceryl-5 Dicaprylate is a mild emulsifier made from glycerin and caprylic acid (a fatty acid from coconut or palm oil). It helps mix water and oil in products like cleansers and moisturizers, so they feel smooth and rinse off easily. Because it's derived from natural sources and has a low irritation risk, it's often used in gentle or sensitive-skin formulas.
Review score
Safety, usefulness, and evidence
Strong fit for many routines
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
Easy yes for most routines
Polyglyceryl-5 Dicaprylate 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 Polyglyceryl-5 Dicaprylate.
- 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 emulsifier produced by esterifying polyglycerin (derived from glycerin) with caprylic acid (a medium-chain fatty acid from coconut or palm oil). It belongs to the polyglyceryl ester family, known for being mild and biodegradable.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. This creates a smooth, uniform texture in creams and lotions. It also has mild skin-conditioning properties, leaving a soft, non-greasy feel.
Pros
Very gentle on skin
Polyglyceryl-5 Dicaprylate has a low irritation risk, making it ideal for sensitive skin or daily use without causing redness or dryness.
Lightweight feel
It creates emulsions that feel light and non-greasy, so it won't clog pores or leave a heavy residue on the skin.
Cons and cautions
Sustainability concerns
It may be derived from palm oil, which can be associated with deforestation and habitat loss unless sourced from certified sustainable suppliers.
Limited research
Compared to classic emulsifiers, there is less published research on its long-term effects, though existing safety data is reassuring.
Best for
- People with sensitive or reactive skin
- Those looking for a gentle, non-stripping cleanser or moisturizer
Use caution if
- Anyone with a known allergy to coconut or palm derivatives (rare)
Usage tips
Safety summary
Polyglyceryl-5 Dicaprylate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for sensitive and acne-prone skin. No significant safety concerns have been reported in regulatory reviews.
Research notes
Safety assessments by the Cosmetic Ingredient Review (CIR) panel and the European Chemicals Agency (ECHA) support its use as a mild emulsifier. Studies indicate low acute toxicity and no significant skin sensitization. However, long-term human studies are limited.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and many other regions. It is generally recognized as safe when used as directed.
- Common uses
- Cleansers, Moisturizers, Serums, Sunscreens
- Environmental note
- Derived from renewable plant sources (glycerin and caprylic acid). However, if sourced from palm oil, look for RSPO-certified sustainable palm to minimize environmental impact.
Good to know
- Polyglyceryl-5 Dicaprylate is often used in 'natural' or 'gentle' skincare lines because it's derived from renewable sources and is biodegradable.
- It is not a preservative, so products still need a proper preservation system.
Common questions
What is Polyglyceryl-5 Dicaprylate in beauty products?
Polyglyceryl-5 Dicaprylate is a mild emulsifier made from glycerin and caprylic acid (a fatty acid from coconut or palm oil). It helps mix water and oil in products like cleansers and moisturizers, so they feel smooth and rinse off easily. Because it's derived from natural sources and has a low irritation risk, it's often used in gentle or sensitive-skin formulas.
What does Polyglyceryl-5 Dicaprylate do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. This creates a smooth, uniform texture in creams and lotions. It also has mild skin-conditioning properties, leaving a soft, non-greasy feel.
Is Polyglyceryl-5 Dicaprylate safe for most people?
Polyglyceryl-5 Dicaprylate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for sensitive and acne-prone skin. No significant safety concerns have been reported in regulatory reviews.
Who should be careful with Polyglyceryl-5 Dicaprylate?
Anyone with a known allergy to coconut or palm derivatives (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.