The Secret to Glossy, Healthy Hair in Korea? Scalp Tonics, Explained

If you’ve fallen deep down the K-beauty rabbit hole and consider yourself someone who knows their stuff—whether it’s navigating the best finds at Olive Young or understanding the difference between ampoules and essences—you likely already know that a Korean hair routine is just as layered as its approach to skincare.

Aside from the clarifying shampoos and nourishing masks that have become well-known stateside, the Korean scalp tonic is just starting to generate buzz. It’s what Korean hair expert Park Jehee describes as a lightweight treatment that, when used consistently, can help reduce scalp heat, deliver nutrients, and support overall scalp health, ultimately leading to stronger, more resilient hair.

Vogue’s Favorite Scalp Tonics

Best Overall

Aromatica Tea Tree Purifying Tonic

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Best Lightweight

Purcell Pixcell Biom Scalp Tonic

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Best for Hair Loss

Dr. Groot Rosemary Mint Oil Tonic

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Best for Fine Hair

Dr. FORHAIR Folligen Tonic

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Best for Soothing

Some By Mi Cica Peptide Scalp Tonic

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Best for Strengthening

Labo-H Scalp Strengthening Spray

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While many of us in the U.S. are just getting into scalp serums and brushes, we still have a ways to go. Thankfully, most Korean brands are now widely available stateside, making it easier than ever to reap these benefits without taking a flight out east.

Ahead, our six favorite scalp tonics, from calming formulas to strengthening picks, along with expert insight on how tonics work and how Koreans keep their hair so healthy.

Best Overall: Aromatica Tea Tree Purifying Tonic

• Why We Love It: According to Korean hair expert Oh Jihye, those in the know refer to this tonic as a “scalp deodorant,” thanks to its tea tree oil-based formula, which is a savior for oily, troubled scalps. She notes that it instantly clarifies excess sebum and dead skin cells, helping to alleviate itchiness and keep the scalp feeling fresh. “Its crisp, cooling finish transforms a humid scalp environment into a breathable one, making it an essential for post-workout or hot summer days.” Not only that, but the packaging is chic, and it’s always the first thing people ask about when they snoop through my bathroom.
• Key Ingredients: Tea tree oil, tea tree decoction extract, salicylic acid, peppermint, eucalyptus
• Best For: Oily scalps
• Size: 100 mL