Ingredient review
Polyglyceryl-6 Stearate
INCI: Polyglyceryl-6 Stearate
A mild, plant-derived emulsifier that creates stable, lightweight textures without stripping the skin.
In plain English
Polyglyceryl-6 Stearate is a helper ingredient that allows water and oil to mix together in a cream or lotion. It is made from glycerin (a natural moisturizer) and stearic acid (a fatty acid found in plants). Because it is very gentle, it is often used in products for sensitive or dry skin. It also helps the product feel smooth and not greasy.
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-6 Stearate 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-6 Stearate.
- 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 non-ionic emulsifier created by combining polyglycerin (a polymer of glycerin) with stearic acid. It is part of the polyglyceryl ester family, known for being milder than traditional emulsifiers.
How it works
It reduces the surface tension between oil and water, allowing them to form a stable mixture. This creates a uniform cream or lotion that spreads easily and feels light on the skin. It also helps other ingredients, like moisturizers or active compounds, stay evenly distributed in the product.
Pros
Very gentle on skin
Polyglyceryl-6 Stearate has a low irritation risk, making it a great choice for sensitive skin types or those prone to reactions from harsher emulsifiers.
Lightweight texture
It helps create creams that feel silky and absorb quickly without leaving a heavy residue, which is ideal for daytime use or oily skin.
Cons and cautions
May need co-emulsifiers
In some formulations, it works best when paired with other emulsifiers to achieve the right consistency, which can complicate DIY recipes.
Less research on long-term effects
While generally considered safe, there are fewer long-term studies on polyglyceryl esters compared to more traditional emulsifiers.
Best for
- People with sensitive or reactive skin looking for gentle moisturizers
- Anyone who prefers lightweight, non-greasy creams and lotions
Use caution if
- Those with known allergies to stearic acid or glycerin derivatives (rare)
Usage tips
Safety summary
Polyglyceryl-6 Stearate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in regulatory reviews.
Research notes
Research on polyglyceryl esters indicates they are mild and well-tolerated. The Cosmetic Ingredient Review panel has evaluated similar polyglyceryl compounds and found them safe for use in leave-on and rinse-off products.
Common label clues
- Typical concentration
- 1–5%
- Regulatory status
- Approved for use in cosmetics by the FDA and the European Commission. It is listed as a safe ingredient by the Cosmetic Ingredient Review (CIR) panel.
- Common uses
- Moisturizers, Cleansers, Serums, Sunscreens
- Environmental note
- Derived from renewable plant sources (glycerin and stearic acid) and is biodegradable, making it a more eco-friendly choice compared to some petroleum-based emulsifiers.
Good to know
- Polyglyceryl-6 Stearate is often used in 'natural' or 'clean' beauty products because it is derived from plant sources.
- It is considered biodegradable and has a lower environmental impact than some synthetic emulsifiers.
Common questions
What is Polyglyceryl-6 Stearate in beauty products?
Polyglyceryl-6 Stearate is a helper ingredient that allows water and oil to mix together in a cream or lotion. It is made from glycerin (a natural moisturizer) and stearic acid (a fatty acid found in plants). Because it is very gentle, it is often used in products for sensitive or dry skin. It also helps the product feel smooth and not greasy.
What does Polyglyceryl-6 Stearate do in a beauty product?
It reduces the surface tension between oil and water, allowing them to form a stable mixture. This creates a uniform cream or lotion that spreads easily and feels light on the skin. It also helps other ingredients, like moisturizers or active compounds, stay evenly distributed in the product.
Is Polyglyceryl-6 Stearate safe for most people?
Polyglyceryl-6 Stearate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, and no significant safety concerns have been reported in regulatory reviews.
Who should be careful with Polyglyceryl-6 Stearate?
Those with known allergies to stearic acid or glycerin 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.