Science
Mechanism of Action
Kojic Dipalmitate precisely targets hyperpigmentation by inhibiting tyrosinase, the key enzyme in melanin synthesis. Within skin cells, esterases convert it into active kojic acid, which then impedes DOPAchrome's conversion into DHICA. This ingredient also functions as an antioxidant, neutralizing free radicals, and chelates copper ions vital for tyrosinase activity.
Research
Clinical Evidence
High confidence4%
Key findings
- 01 Effective skin brightening observed across 1-5% concentrations, with optimal efficacy for specialized whitening products typically between 3-5%.
- 02 Formulations containing 3-5% demonstrated significant visible improvements in skin tone without increasing sensitivity.
- 03 A 2% concentration in a combination cream safely and effectively reduced melasma hyperpigmentation by 51-57% in clinical subjects.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
As an oil-soluble ingredient, Kojic Dipalmitate offers enhanced stability against oxidation and color degradation compared to its parent acid. It maintains integrity across a broad pH range of 3-10 and exhibits excellent heat and light stability. To prevent crystal precipitation in formulations, it is advised to dissolve it in the oil phase with Isopropyl Palmitate or Isopropyl Myristate at 80°C for approximately 5 minutes before emulsification. It is broadly compatible with most cosmetic components, including preservatives and sunscreens.
Safety
Safety Profile
While the parent compound, Kojic Acid, has more stringent concentration recommendations (e.g., CIR <1%, SCCS <0.7%), Kojic Dipalmitate itself is considered non-toxic and safe for cosmetic use within the 1-5% range. Clinical data supports its non-irritating profile at concentrations up to 2%, and efficacy without increased sensitivity up to 5%. Concentrations exceeding 5% may potentially increase the risk of skin irritation or sensitization.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Kojic Dipalmitate is a valuable, stable, and clinically supported ingredient offering precise skin brightening and antioxidant benefits across all skin types, with a strong safety profile within its effective concentration range of 1-5%.
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