KOYO Luminous Glow Vitamin C Serum
Infuse your skin with luminous, antioxidant-rich hydration. KOYO Luminous Glow Vitamin C Serum blends 10% 3-O-Ethyl Ascorbic Acid—a stable, high-penetration form of Vitamin C with 0.1% Ferulic Acid to amplify antioxidant defense against environmental stressors and photo-aging. A micro-dose (0.1%) of Salicylic Acid gently exfoliates pores and refines texture, while 0.2% Alpha Arbutin targets hyperpigmentation for a more even tone. Dual-weight Hyaluronic Acid locks in moisture at multiple skin layers; Panthenol (Vitamin B5) and Allantoin calm and repair; Chamomile Extract soothes sensitivity. Lightweight and non-sticky, this pH-balanced (approx. 3.8) formula delivers visible brightness without compromise.
At Koyo, your ritual matters. If your skin doesn’t align with our products, or if your order arrives damaged/defective, we’re here to help.
1. Skin Compatibility Guarantee
- If your skin doesn’t respond well, you may return the product within 7 days of delivery.
- The product may be lightly used (so you can test it).
- Refund will be in the form of store credit for your next ritual.
2. Defective / Damaged Items
- If your item arrived defective, please provide an unboxing video as proof.
- Returns must be reported within 48 hrs of delivery.
- A replacement will be shipped.
3. Shipping Costs
- For skin-compatibility returns, the customer pays return shipping.
- For defective/damaged items, Koyo covers the return + replacement shipping.
4. Non-Returnable Items
- Products without original batch/expiry labels.
- Products past 7 days from delivery.
- Products without proof of purchase (order ID).
Key Ingredients
