Korean toners are not astringents - they're hydration boosters. The 'hanbang' (Korean herbal) and essence-toners category built glass skin globally.

1. Pyunkang Yul Essence Toner ($18, 200ml) - 91% Coptis Japonica extract. Viscous, layer 3-5 times for 7-skin method. Sensitive + dry skin.

2. Klairs Supple Preparation Unscented Toner ($23) - Fragrance-free, amino acid focus, pH 5.5. Post-treatment recovery toner, gentle enough daily.

3. Beauty of Joseon Glow Replenishing Rice Milk ($20) - Rice bran water + niacinamide 2%. Brightening + hydration combo. Dewy finish.

4. Some By Mi AHA BHA PHA 30 Days Miracle Toner ($17) - Active exfoliating toner, acne-prone focus. PM only, 3-4x per week.

5. Anua Heartleaf 77% Soothing Toner ($22) - Calming for stressed, reactive skin. Post-procedure favorite at Korean dermatologies.

7-skin method: Apply toner 7 times consecutively with pats (not cotton) for maximum hydration. Takes 5 minutes, replaces need for heavy cream.

Where to buy: Olive Young Korea stores, Stylevana, YesStyle, Amazon. Olive Young Global has 13% cashback through affiliates.