Ingredient review
Sucrose Acetate/Stearate
INCI: SUCROSE ACETATE/STEARATE
A gentle, sugar-derived emulsifier that helps create smooth, stable creams and lotions with low irritation potential.
In plain English
Sucrose acetate/stearate is a mild emulsifier made from sugar (sucrose) and fatty acids. It helps oil and water mix together in products like moisturizers and sunscreens, giving them a smooth, creamy texture. Because it comes from sugar, it's generally very gentle on the skin and unlikely to cause breakouts or irritation.
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
Sucrose Acetate/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 Sucrose Acetate/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
Sucrose acetate/stearate is a semi-synthetic ingredient created by combining sucrose (table sugar) with acetic acid and stearic acid (a fatty acid found in plants and animals). It belongs to a class of ingredients called sucrose esters, which are known for their ability to stabilize emulsions.
How it works
In a cosmetic product, sucrose acetate/stearate sits at the boundary between oil and water droplets, reducing surface tension so they can mix evenly. This prevents the product from separating into oily and watery layers, ensuring a consistent texture and feel every time you use it.
Pros
Gentle on skin
Sucrose acetate/stearate has a very low irritation risk, making it suitable for sensitive skin types and around the eye area.
Non-comedogenic
It scores low on the comedogenic scale, meaning it's unlikely to clog pores or contribute to breakouts, even for acne-prone skin.
Cons and cautions
Limited pH tolerance
This emulsifier works best in a neutral to slightly acidic pH range. Very acidic or alkaline formulas may cause it to lose stability, affecting product texture.
Less research available
Compared to classic emulsifiers like cetearyl alcohol or glyceryl stearate, there is less published research on sucrose acetate/stearate, though existing safety data is positive.
Best for
- Anyone looking for a gentle, non-irritating moisturizer or sunscreen
- People with sensitive or acne-prone skin who want to avoid harsh emulsifiers
Use caution if
- Those with a rare allergy to sugar derivatives (extremely uncommon)
Usage tips
Safety summary
Sucrose acetate/stearate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, and no significant toxicity concerns have been identified in available studies.
Research notes
Research on sucrose esters, including sucrose acetate/stearate, supports their safety and efficacy as emulsifiers. Most data come from industry safety assessments and regulatory reviews, with no major red flags reported.
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 evaluated sucrose esters and found them safe as used.
- Common uses
- Moisturizers, Creams, Lotions, Sunscreens
- Environmental note
- Sucrose is a renewable resource, and the production of sucrose esters generally has a lower environmental footprint than some petroleum-based emulsifiers.
Good to know
- Sucrose acetate/stearate is often used in 'natural' or 'gentle' skincare lines because it's derived from sugar.
- It can also function as a mild skin-conditioning agent, adding a soft feel to the formula.
Common questions
What is Sucrose Acetate/Stearate in beauty products?
Sucrose acetate/stearate is a mild emulsifier made from sugar (sucrose) and fatty acids. It helps oil and water mix together in products like moisturizers and sunscreens, giving them a smooth, creamy texture. Because it comes from sugar, it's generally very gentle on the skin and unlikely to cause breakouts or irritation.
What does Sucrose Acetate/Stearate do in a beauty product?
In a cosmetic product, sucrose acetate/stearate sits at the boundary between oil and water droplets, reducing surface tension so they can mix evenly. This prevents the product from separating into oily and watery layers, ensuring a consistent texture and feel every time you use it.
Is Sucrose Acetate/Stearate safe for most people?
Sucrose acetate/stearate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, and no significant toxicity concerns have been identified in available studies.
Who should be careful with Sucrose Acetate/Stearate?
Those with a rare allergy to sugar derivatives (extremely uncommon)
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.