VT CICA Reti-A Essence 0.7 30ml Used only twice, a very small amount each time, so the contents are almost unused! From the product description: CICA RETI-A ESSENCE 0.7 VT's high-concentration* CICA retinol series offers skin concern solutions tailored to your skin level. *Compared to our previous products #High Level CICA RETI-A ESSENCE 0.7% Anti-aging care* for skin concerns deep within the skin. Restores aging skin to plump, smooth, and beautiful skin. *Refers to care appropriate for one's age The light, moisture-rich texture absorbs quickly into the skin without feeling sticky, leading to fine-grained, firm skin. *The color and scent of the product may change due to high temperatures or direct sunlight, but this does not affect the quality. 【How to Use】 The skin adaptation check period is approximately 3 weeks in total. 1. After washing your face, apply a rice grain-sized amount to areas of concern. STEP 1: Use once every 3 days for the first 2 weeks. STEP 2: Use once every 2 days for the last week. Please allow for a test period for skin irritation. *After the 3-week adaptation period as described above, if there are no problems, you can use it daily. 2. After the test period, if you did not feel any skin irritation, use an amount about the size of a pearl. 3. After completing the skin adaptation test period, you can use it daily in your morning and evening skincare routine. *If using in the morning, it is recommended to use it with a product that provides UV care (such as sunscreen). Cautions 1. Start with a small amount and gradually increase the amount. 2. Avoid using in combination with products containing high concentrations of vitamin C, AHA, or BHA. 3. Avoid using in combination with products that directly irritate the skin, such as scrubs, peeling (exfoliation) products, and beauty devices. 4. Due to the nature of the ingredients, you may experience irritation. If irritation persists, reduce the frequency of use or discontinue use. 5. Excessive exfoliation or skin problems may occur outside of the skin adaptation period. 6. This product contains ingredients that are sensitive to light, so use sunscreen in conjunction. *If this product does not agree with your skin, discontinue use.