The Hannaru Edit · Category
Decode Korean skincare ingredients — centella asiatica, niacinamide, retinoids, and more. Science-backed analysis for buyers and enthusiasts.
69 articles
Ingredient Guide
Ectoin is the extremophile-derived barrier ingredient taking K-beauty by storm. Learn why Korean brands are formulating with this powerful protectant.
Ingredient Guide
Explore dexpanthenol (pro-vitamin B5) in Korean skincare. Learn how this healing ingredient repairs, hydrates, and soothes skin in K-beauty formulations.
Ingredient Guide
Collagen and retinol fight aging differently. Learn which ingredient you need, whether you can use both, and discover Korean products combining both approaches.
Ingredient Guide
Learn how beta-glucan strengthens and repairs the skin barrier in Korean skincare, with top product picks and routine tips.
Ingredient Guide
Learn how Korean skincare brands use azelaic acid for acne, rosacea, and hyperpigmentation with gentler formulations.
Ingredient Guide
Adapalene targets acne through selective receptor binding; retinol addresses anti-aging through broad collagen stimulation. Learn which retinoid is right for your skin type, concerns, and goals — plus why Korean retinal products are emerging as the best of both worlds.
Ingredient Guide
Salicylic acid and benzoyl peroxide treat acne differently. Compare how they work, side effects, and which K-Beauty products use them best.
Ingredient Guide
Rice water has been a Korean beauty staple for centuries. Here's what modern science says about its benefits for brightening, hydration, and anti-aging.
Ingredient Guide
Glycolic acid (AHA) and salicylic acid (BHA) are the two most popular chemical exfoliants. Learn which one your skin actually needs — and how K-Beauty uses both.
Ingredient Guide
Discover the skincare benefits of mugwort (artemisia), a traditional Korean herb used to calm irritation, fight redness, and strengthen the skin barrier.
Ingredient Guide
Ceramides are the building blocks of your skin barrier. Learn what they are, why they matter, and the best ceramide moisturizers from Korean skincare brands.
Ingredient Guide
Calendula is one of Korean skincare's most valued botanicals. We break down what calendula does for skin, the best Korean calendula toners, and how to use them.
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