Common Name(s): Hydrogenated milk lipids,hydrogenated milk lipids,hydrogenated oil/wax,oxidatively stable emollient
CAS Number: N/a
DESCRIPTION
What It Does: Provides emollient conditioning with superior oxidative shelf stability from fully saturated carbon chains — eliminating the rancidity risk of the precursor unsaturated oil for long shelf-life anhydrous and colour cosmetic applications.
Why It's Used: Hydrogenation converts labile c=c double bonds to c-c single bonds — each eliminated double bond removes an oxidation initiation site, with full saturation providing indefinite oxidative stability unavailable from natural unsaturated oils.
How It Works: Catalytic hydrogenation (h₂/pd or ni catalyst): c=c → c-c; the added h atoms eliminate the bis-allylic ch₂ groups that are the primary lipid oxidation initiation sites. tm elevation: each c-c replacing c=c raises tm ~10-20°c — partial hydrogenation produces solid wax emollients; full hydrogenation produces hard waxes with tm 60-80°c.
Typically Found In: Anhydrous cosmetics,colour cosmetics,long shelf life
TECHNICAL DETAILS
Primary Category: Functional ingredient – emollient
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%–40%
SOURCING & ETHICS
Vegan Status: No - animal-derived
Halal Status: Conditional - dairy or egg origin statement required, plus rennet and enzyme origin upstream
Source Notes: Plant-derived, synthetic or animal-derived. verify source. [audit 2026-07-29 rev2: dairy or egg protein; rennet and enzyme origin upstream are undocumented. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Trans fatty acid monitoring: partial hydrogenation can generate trans isomers — cosmetic applications require coa confirming cis/trans ratio particularly for ingredients intended for near-oral products (lip products).
Last Verified: 2026-03-22
Primary Sources: Cosing database,hydrogenated milk lipids hydrogenated oil emollient review