Butyl Micronized Tranexamic Acid is a lipophilic, micronized derivative of tranexamic acid used in topical formulations to reduce hyperpigmentation, melasma, and post-inflammatory dark spots. The butyl modification and micronization are intended to improve skin penetration and stability compared to standard tranexamic acid.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient redness or irritation | Uncommon | Usually mild and resolves with continued use or reduced frequency. |
Dryness or flaking at application site | Uncommon | More likely in sensitive skin or when combined with other actives. |
Itching or stinging on application | Rare | Typically temporary and localized. |
Contact dermatitis or allergic reaction | Very rare | Discontinue use and consult a clinician if persistent rash occurs. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.