beauty
cleaning
pharma

(-)-beta-Sitosterol

CAS 5779-62-4

Also registered as 6 other CAS numbers

8003-23-4 · 15764-35-9 · 76772-70-8 · 182512-23-8 · 2504119-39-3 · 83-46-5

Concern score

Not assessed — no hazard data yet.

(-)-beta-Sitosterol in plain language

What it is: On cosmetic ingredient lists it appears as “Beta-sitosterol”.
Also known as Beta-sitosterol · .beta.-sitosterol · Beta sitosterol · Sitosterol · β-sitosterol · .alpha.-dihydrofucosterol
Show all 46 names
.alpha.-phytosterol · .delta.(sup 5)-STIGMASTEN-3.BETA.-OL · 22,23-DIHYDROSTIGMASTEROL · 24.BETA.-ETHYL-.DELTA.(SUP 5)-CHOLESTEN-3.BETA.-OL · Azuprostat · Beta-sistosterol · Betaprost · Cinchol · Cupreol · Quebrachol · Rhamnol · Sitosterin · Sitosterol, .beta. · Stigmast-5-en-3beta-ol · (-)-β-Sitosterol · (24R)-Ethylcholest-5-en-3beta-ol · (24R)-Ethylcholest-5-en-3β-ol · (24R)-Stigmast-5-en-3beta-ol · (24R)-Stigmast-5-en-3β-ol · (3.BETA.)-STIGMAST-5-EN-3-OL · (3beta)-Stigmast-5-en-3-ol · 24-alpha-Ethylcholesterol · 24alpha-Ethylcholesterol · 24α-Ethylcholesterol · B-Sitosterol · Harzol · Nimbosterol · Prostasal · Skf 14463 · Stigmast-5-en-3-.beta.-ol · Stigmast-5-en-3-ol, (3beta)- · Stigmast-5-en-3-ol, (3β)- · Stigmasterol, 22,23-dihydro- · Triastonal · beta-Sitosterin · phytosterol · α-Dihydrofucosterol · .beta.-sitosterol (constituent of pygeum) · Beta-sitosterol (constituent of saw palmetto) · Beta-sitosterol (constituent of stinging nettle)
What it does: Used in cosmetics as a skin-conditioning agent, an emulsion stabiliser and a light stabiliser.
Skin conditioning
Emulsion stabilising
Light stabilizer
Fragrance
Emulsifier
Conditioner
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. (-)-beta-Sitosterol appears in these published regulatory listings.

In marketed US drugs

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 95 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Deodorizer, Softener and conditioner, Stabilizing agent.
- EPA CPDat observed this chemical in 95 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Deodorizer, Softener and conditioner, Stabilizing agent.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 2 active drug products and 3 total products.
- FDA NDC lists this ingredient in 2 active drug products and 3 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for (-)-beta-Sitosterol. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for (-)-beta-Sitosterol yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated September 2018
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA National Drug Code Directory
regulatory · updated 2026-12-31
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Reference links (1)

Openfda substance

proenutrition.com

Read →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed (-)-beta-Sitosterol in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Personal care

Typical roles

Skin conditioningEmulsion stabilisingLight stabilizerFragranceEmulsifierConditioner

See products using (-)-beta-Sitosterol →

Catalog

Found in these products

Their ingredient lists include (-)-beta-Sitosterol; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 84 →Find products without it →