Definition
US FDA substance register · UNII 4SWT01T54O · registered name HYDROXYISOLEUCINE · single chemical substance
Cosmetic roles
Draws in and holds moistureHUMECTANTKeeps skin in good condition (CosIng catch-all)SKIN CONDITIONING
More data — names, identifiers, properties, test records, literature
Names & identifiers
HYDROXYISOLEUCINEINCI하이드록시아이소류신Korean label name (MFDS standard)
- CAS No.chemical registry number
- 55399-93-4
- DTXSIDUS EPA chemical ID
- DTXSID90203947
- DTXCIDUS EPA compound ID
- DTXCID20126438
- IUPAC
- (2S,3R,4S)-2-Amino-4-hydroxy-3-methylpentanoic acid (non-preferred name)
- Molecular formula
- C6H13NO3
- Molecular weight
- 147.174 g/mol
What products actually use it for
What the 2 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Softener and conditioner1
- Humectant1
Source: US EPA CompTox dashboard
Related literature
- Hulba (Trigonella foenum-graecum L.): A Comprehensive Unani Drug Review Integrating Classical Literature, Phytochemistry, Pharmacological Activities, Therapeutic Applications, and Contemporary Scientific Evidence · 2026
- 4-Hydroxyisoleucine-Loaded Nanogel: Development from an Optimized Nanoemulsion for Antidiabetic Therapy · 2025
- Use of (2S, 3R, 4S) -4-hydroxyisoleucine in cosmetic formulations for topical use. · 2004
Linked databases 12
- ChEBI
- ChEMBL
- EU CosIng ingredient list 2
- Korea Cosmetic Association ingredient dictionary
- MFDS (Korea) cosmetic ingredient register 2
- Tlooto literature search 2 3
- UniChem cross-reference IDs
- US EPA CompTox dashboard 2
- US EPA DSSTox chemical database
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata