OriginSynthesized from indole and serine precursors through fermentation or chemical synthesis methods. Produced industrially via bacterial fermentation using genetically modified microorganisms or catalytic chemical routes.
2-Amino-3-indol-3-ylpropanoic acid
Solubility 1 to 5 mg/mL at 68 °F (NTP, 1992)
Formula
C11H12N2O2
Mol. Weight
204.22
CAS #
54-12-6, 73-22-3
Form
Powder
State
L-tryptophan is a white powder with a flat taste. An essential amino acid; occurs in isomeric forms. (NTP, 1992)
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Antistatic
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Anti-Aging
Antioxidant
Anti-Inflammatory
Reduces flyaways
Softens and detangles hair
Provides scent
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
murphy