Daily Chemicals
01
Kojic Acid Dipalmitate CAS 79725-98-7
Typical Properties
| Item | Specifications |
| Appearance | white sheet crystal |
| Assay | ≥98.0% |
| Melting point | 92~96℃ |
| Loss on drying | ≤0.5% |
| Ignition residue | ≤0.5% |
| Color reaction of ferric chloride | Negative |
| Heaby metal | ≤10ppm |
| Arsenic | ≤2ppm |
| Pathogen | Bacteria:≤300cfu/gFungus:≤100cfu/g |
Core Characteristics & Advantages
1. Ultimate Stability
It solves the fatal flaws of traditional Kojic Acid, which is sensitive to light and heat and prone to discoloration.
Mechanism: The active hydroxyl group is esterified and blocked by palmitic acid, making it highly stable against light, heat, oxygen, and metal ions.
Data: In accelerated testing (45°C / 60% RH for 3 months), the active retention rate is >90% (compared to only 58% for Kojic Acid).
Benefit: It resists yellowing and loss of efficacy in formulations without requiring large amounts of additional stabilizers.
2. Highly Efficient Whitening Mechanism
Tyrosinase Inhibition: By chelating the copper ions (Cu²⁺) at the enzyme's active center, it strongly blocks the key rate-limiting step of melanin synthesis. Its inhibition efficiency is superior to that of Kojic Acid and Arbutin.
Blocking Melanin Production: It reduces the formation of spots and dullness from the source, with an efficacy rate exceeding 80%.
Gentle Brightening: It also offers antioxidant benefits, improving uneven skin tone and aging-related dullness.
3. Safety & Low Irritation
Structure: Its lipid-soluble structure reduces skin penetration irritation, eliminating the burning sensation associated with traditional Kojic Acid.
Patch Test: At 2% concentration, it causes no irritation to healthy skin. The irritation index for sensitive skin is only 0.8 (compared to 2.3 for Kojic Acid).
Usage: It is non-photosensitive, safe for daytime use, and carries no risk of rebound hyperpigmentation.
4. Excellent Formulation Compatibility
Solubility: Being lipid-soluble, it easily integrates into oil-phase systems like creams and lotions, making it formulation-friendly.
Compatibility: It does not conflict with most preservatives, sunscreens, vitamins, and plant extracts.
Penetration: It has strong penetration power, effectively reaching skin targets.
Main Efficacy & Applications
1. Core Efficacy
Whitening & Spot Fading: Fades melasma, age spots, acne marks, and post-inflammatory hyperpigmentation (PIH).
Brightening Skin Tone: Improves dullness and sallow complexion, leaving the skin translucent and fair.
Antioxidant: Scavenges free radicals and assists in preventing photo-aging.
2. Application Areas (Cosmetics)
Whitening Creams / Serums: Focus on spot fading and brightening.
Spot Correctors: Targets stubborn pigmentation and acne marks.
Sunscreen / Primers: Synergistic whitening effect to prevent tanning.
Body Lotions / Hand Creams: All-over body whitening.
Makeup / Foundation: Brightens complexion while providing concealing and skin-nourishing benefits.
Package
25kg/drum
Storage
Store in a cool, dry, and dark place in a sealed container.