Ingredient review
Sucrose Tetraisostearate
INCI: SUCROSE TETRAISOSTEARATE
A gentle, sugar-based emulsifier that creates smooth, stable creams without common irritation.
In plain English
Sucrose Tetraisostearate is a sugar molecule (sucrose) chemically linked to fatty acids (isostearic acid). It acts as a bridge between oil and water, allowing them to mix into a stable, creamy lotion. Because it's derived from sugar and fatty acids, it's considered mild and less likely to clog pores or irritate skin compared to some traditional emulsifiers.
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
Sucrose Tetraisostearate 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 Tetraisostearate.
- 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 Tetraisostearate is a semi-synthetic ingredient made by esterifying sucrose (table sugar) with isostearic acid, a branched-chain fatty acid. It belongs to the family of sugar esters, which are known for their gentle, skin-friendly properties.
How it works
In a cosmetic product, Sucrose Tetraisostearate sits at the interface between oil and water droplets, reducing surface tension so they stay mixed. This creates a uniform, stable emulsion that feels smooth and spreads easily on the skin. It also helps improve the texture and sensory feel of creams and lotions.
Pros
Gentle on skin
Derived from sugar and fatty acids, it has a very low irritation risk, making it a good choice for sensitive or reactive skin types.
Non-greasy feel
It helps create lightweight creams and lotions that absorb quickly without leaving a heavy or sticky residue.
Cons and cautions
Limited to emulsions
This ingredient is designed for oil-and-water mixtures; it won't work in anhydrous (water-free) products like balms or pure oils.
Concentration sensitive
If used below the optimal range, the emulsion may not be stable, leading to separation or a watery texture.
Best for
- People with sensitive or reactive skin looking for a gentle emulsifier
- Anyone who prefers non-comedogenic, lightweight moisturizers
Use caution if
- Those seeking completely water-free or oil-only products
Usage tips
Safety summary
Sucrose Tetraisostearate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in standard use concentrations.
Research notes
Research on sugar esters like Sucrose Tetraisostearate supports their role as mild, effective emulsifiers. Studies indicate they are well-tolerated on skin and do not disrupt the skin barrier. However, specific clinical data on this exact ester is limited, with most evidence coming from broader sugar ester safety assessments.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics globally, including by the EU CosIng database and the US FDA as a safe cosmetic ingredient.
- Common uses
- Moisturizers, Sunscreens, Makeup removers, Lip products
- Environmental note
- Sucrose Tetraisostearate is derived from renewable plant sources (sugar cane or sugar beets) and is biodegradable, making it a relatively eco-friendly choice.
Good to know
- Sucrose esters are often used in 'natural' or 'clean' beauty products as alternatives to harsher synthetic emulsifiers.
- This ingredient is biodegradable and considered environmentally friendly.
Common questions
What is Sucrose Tetraisostearate in beauty products?
Sucrose Tetraisostearate is a sugar molecule (sucrose) chemically linked to fatty acids (isostearic acid). It acts as a bridge between oil and water, allowing them to mix into a stable, creamy lotion. Because it's derived from sugar and fatty acids, it's considered mild and less likely to clog pores or irritate skin compared to some traditional emulsifiers.
What does Sucrose Tetraisostearate do in a beauty product?
In a cosmetic product, Sucrose Tetraisostearate sits at the interface between oil and water droplets, reducing surface tension so they stay mixed. This creates a uniform, stable emulsion that feels smooth and spreads easily on the skin. It also helps improve the texture and sensory feel of creams and lotions.
Is Sucrose Tetraisostearate safe for most people?
Sucrose Tetraisostearate is considered safe for use in cosmetics. It has low irritation and comedogenic potential, and no significant safety concerns have been reported in standard use concentrations.
Who should be careful with Sucrose Tetraisostearate?
Those seeking completely water-free or oil-only products
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.