Ingredient review
Dihydroxyethyl Stearyl Glycinate
INCI: DIHYDROXYETHYL STEARYL GLYCINATE
A mild, effective conditioning agent that leaves skin and hair feeling soft without heavy buildup.
In plain English
Dihydroxyethyl Stearyl Glycinate is a gentle ingredient that helps condition and soften both skin and hair. It works by coating the surface, reducing friction, and making hair easier to comb and skin feel smoother. Because it is derived from a fatty acid (stearic acid) and an amino acid (glycine), it is considered mild and unlikely to cause irritation or clog pores.
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
Dihydroxyethyl Stearyl Glycinate 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 Dihydroxyethyl Stearyl Glycinate.
- 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 conditioning agent made from stearic acid (a fatty acid found in many plant and animal fats) and glycine (an amino acid). It is often used as a milder alternative to traditional quaternary ammonium compounds.
How it works
It has a positively charged part that binds to the negatively charged surfaces of hair and skin. This creates a thin, lubricating film that reduces static, eases detangling, and leaves a soft, smooth feel without a greasy residue.
Pros
Gentle on sensitive skin
Unlike harsher surfactants, this ingredient is very mild and unlikely to cause stinging or irritation, making it suitable for sensitive or reactive skin types.
Reduces tangles without weight
It effectively smooths the hair cuticle and reduces tangles, but because it is not overly heavy, it works well for many hair types without causing limpness.
Cons and cautions
Potential buildup over time
As a conditioning agent, it can accumulate on hair with repeated use, especially if you do not use a clarifying shampoo occasionally, leading to dullness or limpness.
Not ideal for very fine hair
For those with extremely fine or low-porosity hair, even this mild conditioner might weigh hair down if used in high concentrations or too frequently.
Best for
- People with dry or damaged hair seeking gentle conditioning
- Those with sensitive skin who want a mild cleanser or conditioner
Use caution if
- Individuals with very fine hair who prefer lightweight, non-conditioning formulas
Usage tips
Safety summary
Dihydroxyethyl Stearyl Glycinate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for sensitive skin and daily use. No significant safety concerns have been raised by regulatory bodies.
Research notes
While not extensively studied in isolation, the ingredient's components (stearic acid and glycine derivatives) are well-known and safe. Its mild conditioning profile is supported by its chemical structure and widespread use in gentle formulations.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no known restrictions at typical use levels.
- Common uses
- Conditioners, Shampoos, Body washes, Facial cleansers, Leave-in treatments
- Environmental note
- Dihydroxyethyl Stearyl Glycinate is generally considered biodegradable and less toxic to aquatic life compared to some traditional quaternary ammonium compounds.
Good to know
- This ingredient is often listed near the middle or end of an ingredient list, indicating it is used at moderate to low concentrations.
- It is considered biodegradable and more environmentally friendly than some older conditioning agents.
Common questions
What is Dihydroxyethyl Stearyl Glycinate in beauty products?
Dihydroxyethyl Stearyl Glycinate is a gentle ingredient that helps condition and soften both skin and hair. It works by coating the surface, reducing friction, and making hair easier to comb and skin feel smoother. Because it is derived from a fatty acid (stearic acid) and an amino acid (glycine), it is considered mild and unlikely to cause irritation or clog pores.
What does Dihydroxyethyl Stearyl Glycinate do in a beauty product?
It has a positively charged part that binds to the negatively charged surfaces of hair and skin. This creates a thin, lubricating film that reduces static, eases detangling, and leaves a soft, smooth feel without a greasy residue.
Is Dihydroxyethyl Stearyl Glycinate safe for most people?
Dihydroxyethyl Stearyl Glycinate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and comedogenic risk, making it suitable for sensitive skin and daily use. No significant safety concerns have been raised by regulatory bodies.
Who should be careful with Dihydroxyethyl Stearyl Glycinate?
Individuals with very fine hair who prefer lightweight, non-conditioning formulas
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.