Tranexamic Acid
Active for an Even-Looking Tone
Active for formulas aiming for a more even-looking tone.
TECHNICAL DATA
INCI Tranexamic Acid
No. CAS 1197-18-8
Purity ≥ 98 % · pH (1 % solution): 6.5–8.0
Melting point 300 °C (approx.)
Solubility High in water
FUNCTION
Tranexamic AcidReduces the look of dark spotsUneven tone (dark spots)Post-blemish marksImproves the evenness of skin toneHelps soothe irritated-looking skinVisible rednessBoosts facial radiance
APPLICATIONS
SerumsCreamsFacial masks
• Brightening facial serums • Dark-spot creams • Brightening masks • After-sun products • Anti-aging formulas
DESCRIPTION
Tranexamic Acid
Tranexamic acid is a synthetic derivative of the amino acid lysine, widely used in dermocosmetic formulations for its ability to help reduce the look of dark spots and uneven pigmentation. It has brightening and soothing properties, making it ideal for brightening products, dark-spot products and post-blemish care.
Practical formulation guide
Usage level: Recommended usage level
- Usage concentration: 2 %–5 % • When to add: water phase (below 50 °C/122 °F)
How to use and incorporate: Dissolve in the water phase (salicylic acid requires a solvent such as butylene glycol, propylene glycol, alcohol or warm glycerin) and adjust the final pH with a base (triethanolamine, sodium hydroxide or arginine), measuring with a pH meter.
Formulation tips:
- Final pH determines the performance and tolerance of the product; always measure with a calibrated pH meter.
- In leave-on products with alpha-hydroxy acids, include a sunscreen use recommendation on the label.
- Before scaling up, make a pilot batch and run a stability test (cycles at 4 / 25 / 45 °C/39 / 77 / 113 °F for 4 weeks, checking odor, color, pH, viscosity and separation) in the final packaging.
Compatibility: Incompatibilities
- Compatible with most brightening actives such as niacinamide, kojic acid and alpha arbutin. • Avoid combining with strong acids or very low pH (< 5) to prevent destabilization.
Storage: Shelf life: 24 months under proper conditions. • Keep in its original container, tightly closed, to prevent moisture absorption. • Store in a dry, cool, ventilated place, protected from direct sunlight. • Keep in areas free of excessive dust so as not to affect product purity. Stability: Good over a wide pH range (5.5–8.5)
Precautions: • For use only in cosmetic or industrial formulations. • Do not use directly on the skin without proper formulation. • May cause eye and skin irritation at high concentrations. Handling Use personal protective equipment (PPE): lab coat, gloves, face mask, safety glasses.
Technical information for formulators: This sheet describes industrial uses of the raw material in the development of cosmetic products. It is not an efficacy claim for any finished product. The person responsible for the formulation must validate the concentration, compatibility and claims of their product in accordance with applicable regulations.
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