Science-Backed Formulation

Every ingredient is paired with purpose to maximize your results.

OINA Multi-Pathway
Brightening System™

5% NIACINAMIDE  |  TRANEXAMIC ACID  |  CINDERELLACARE®

References

5% Niacinamide & Skin Barrier Repair

Study Focus: Hyperpigmentation & Barrier Function

Key Finding: Clinical trials show that 5% Niacinamide significantly inhibits melanosome transfer to lighten dark spots while accelerating ceramide synthesis to strengthen the skin barrier.

Niacinamide + Tranexamic Acid Synergy

Study Focus: Targeted Dark Spot Reduction

Key Finding: Combining Niacinamide with Tranexamic Acid delivers dual-action brightening by inhibiting both melanin production and surface pigment transfer, effectively treating stubborn hyperpigmentation.

CinderellaCare® Melanin Inhibition

Study Focus: Circadian Pigmentation Control

Key Finding: Developed by Ichimaru Pharcos Japan, CinderellaCare® inhibits kinesin expression—the molecular motor that transports melanin to skin cells—significantly reducing dark spots and evening skin tone.

OINA Barrier Hydration System™

2% PANTHENOL  |  SILK AQUA  |  SHEA BUTTER

References

Niacinamide + 2% Panthenol Recovery

Study Focus: Deep Hydration & Barrier Restoration

Key Finding: The combination of Niacinamide and 2% Panthenol provides superior skin barrier recovery, reducing transepidermal water loss (TEWL) and soothing irritated skin.

Lab Patch Test
Duration : 6-7 weeks
Proof for: non irritant potential, dermatology tested, mild to skin, clinically tested

OINA Triple-Shield UV Defense System™

CHEMICAL UV FILTER  |  PHYSICAL UV FILTER  |  HYBRID UV FILTER

References

UV Defense Classification

Details the classification of UV filters (organic, inorganic, and hybrid formulations), their mechanisms of action, and how combining them optimizes broad-spectrum protection against UVA and UVB rays.

Physical & Chemical UV Filters

Demonstrates how combining organic (chemical) and inorganic (physical) UV filters creates a synergistic effect that significantly enhances overall photoprotection (SPF) compared to using individual filters alone.

OINA Layered Fragrance System™

Because Great Body Care Should Feel as Good as It Performs

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Real Results with OINA

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