• Customizable sea buckthorn, niacinamide and tranexamic-acid levels
• Adjustable serum color, viscosity, absorption speed and after-feel
• Optional fragrance-free, essential-oil-free and sensitive-skin formula directions
• Customizable brightening, antioxidant and hydration positioning
• Amber glass bottle, white dropper and berry-led carton customization
• 30 ml and 50 ml bottle options
• Brightening, pigmentation-appearance, moisturizing and skin-irritation test options