How much products actually contain
2 products state the amountmedian 0.000005%
- under 0.01% 2
- 0.01–0.1% 0
- 0.1–1% 0
- 1% or more 0
Amounts are mostly stated by products named after the ingredient, so they may lean towards token amounts.
Of the products containing it, 23 list it before the 1% line and 87 after it (usually 1% or less).
Products using this ingredient
12 of 109 confirmed · likeliest to carry enough first · See all 109
PARKJUN BEAUTY LABLPP Ceramide Hard Hair Curl Cream 150ml (Salon Curling Essence)
ROUND LABROUND LAB 1025 Dokdo Water Gel Mask
ROUND LABROUND LAB 1025 Dokdo Water Gel Mask 30ml (10 Sheets)
PARKJUN BEAUTY LABPPT Protein Treatment 250
SidmoolDr. Troub Easy Wash Physical Sun Milk SPF50+ PA++++
HAIRPLUSProtein Bond Water Essence 200ml 2-Pack
PARKJUN BEAUTY LABLPP Leave-In Treatment 200ml Damaged Hair Pack
LAVIENLAVIEN Medinic Line EGF Micro Pin Ampoule
HAIRPLUSProtein Bond Ampoule Essence 150ml Wiggle Wiggle Limited Edition
IDRRRestore Treatment
HAIRPLUSProtein Bond Ampoule Modern Peach 70ml 2-Pack
CelltiaraArgan Oil Damage Control Shampoo
Cosmetic roles
Softens hairHAIR CONDITIONINGReduces staticANTISTATICListed as a fragrance-composition material (not a claim that it adds scent)FRAGRANCE
Safety & regulatory references
Reviewed by CIR: Safety Assessment of alpha-Amino Acids as Used in Cosmetics
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name トリプトファン: 本品は、次の化学式で表されるアミノ酸である。
Source: JCIA labelling names (Japan)
Names & identifiers
TRYPTOPHANINCI트립토판Korean label name (MFDS standard)トリプトファンJapanese labelling name
- CAS No.chemical registry number
- 54-12-6
- CAS No.chemical registry number
- 73-22-3
- EC No.EU chemical inventory number
- 200-194-9
- EC No.EU chemical inventory number
- 200-795-6
Measured properties
- Appearance
- Beige powder, [Sigma-Aldrich MSDS] · Solid
- Boiling point
- 289.00 to 291.00 °C. @ 760.00 mm Hg
- Melting point
- 293 °C
- Dissociation constant
- 2.3 · 9.3
Values measured on the substance itself, not a specification for a commercial raw material.
Source: PubChem
Related literature
- Eosinophilic fasciitis associated with L-tryptophan ingestion. · 1992
- L-tryptophan use and the eosinophilia-myalgia syndrome. · 1990
- A Defect in Tryptophan Metabolism · 1976
- Myalgia-eosinophilia syndrome associated with tryptophan · 2020
- Effect of L-Tryptophan Supplementation on Eosinophils and Eotaxin in Guinea Pigs · 2001
Linked databases 16
- Australian Industrial Chemicals Inventory (AICIS)
- ChEBI 2
- China inventory of existing ingredients (IECIC)
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- MFDS (Korea) cosmetic ingredient register 2
- NIST Chemistry WebBook 2
- PubChem
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs 2
- US Cosmetic Ingredient Review (CIR) 2
- US EPA DSSTox chemical database 2
- US FDA substance registration (GSRS) 2
- US National Toxicology Program reports
- Wikidata 2 3