CROWN Cooling Roll-On

CROWN is a cooling roll-on made by Cerebral Torque, an evidence-based migraine education platform. It pairs menthol and camphor, the classic Western cooling and counterirritant actives, with two ingredients from traditional Chinese formulas, Bing Pian (borneol) and Chuan Xiong, plus magnesium. It’s lavender-free and has no synthetic fragrance, so it’s a good fit for people who are sensitive to scent.

Three things. First, it draws on two traditions. Most rollers stop at peppermint and a few essential oils. CROWN adds Bing Pian and Chuan Xiong, two ingredients with a long history in traditional Chinese formulas and a growing body of published research. Second, CROWN is lavender-free. Lavender is a common scent people with migraine say they avoid, and most other rollers in the category contain it. Third, CROWN discloses every active concentration. Most rollers keep them hidden.

Every active in CROWN is disclosed at its concentration on our website. Here is the full lineup:

• Menthol: the classic cooling active, and the source of that fast, fresh chill.
• Magnesium: a mineral that comes up often in migraine research.
• Bing Pian (borneol): an icy cooling compound used in Chinese headache formulas for centuries. Its name literally means "ice piece."
• Chuan Xiong: the most-used herb in traditional Chinese headache formulas, rich in tetramethylpyrazine.
• Camphor: a topical counterirritant recognized in the FDA OTC analgesic monograph, disclosed at 3%.
• Peppermint and eucalyptus: complementary cooling actives.
• German chamomile and sweet basil: botanicals that have each been studied in published topical research.

No lavender. No synthetic fragrance. No parabens. No filler.

Each key ingredient in CROWN has a published research record. These studies looked at the individual ingredients, not at CROWN itself, and several tested different forms or doses. Here they are, by ingredient:

• Menthol: randomized, placebo-controlled trials of topical menthol in people with migraine and headache: Borhani Haghighi 2010, St Cyr 2015, Göbel 1996.
• Bing Pian (borneol): clinical and mechanistic work on topical borneol: Wang 2017, EMBO Mol Med.
• Chuan Xiong (tetramethylpyrazine): research on tetramethylpyrazine in lab models: Xing 2024, Mi 2020.
• Magnesium: double-blind, placebo-controlled trial of oral magnesium in people with migraine: Peikert 1996, Cephalalgia.
• German chamomile: randomized, double-blind trial of a topical chamomile oleogel in people with migraine: Zargaran 2018, Neurol Sci.
• Sweet basil: randomized, triple-blind trial of topical basil essential oil in people with migraine: Ahmadifard 2020.

Want every reference in one place? Read the full science behind CROWN.

Yes. CROWN’s raw ingredients were tested before production, and an independent lab then tested the finished product for heavy metals and for bacteria, yeast and mold. Every result was well within the limits for cosmetics. See the results and the lab’s contact details.

People who want a cooling roller they can use every day and reach for during migraine attacks, especially if strong scents bother them. If lavender or perfume in other rollers was too much, CROWN was made with you in mind.

A quick menthol chill that deepens as the camphor builds. The first tingle comes within seconds, strong but not unpleasant. CROWN sits at the higher end of cooling intensity by design. Think of a clean cool that spreads from the temples back toward the neck. And it isn’t just about the cold: magnesium, Bing Pian, Chuan Xiong and German chamomile round it out, which is why CROWN is made for everyday use.

Many people with migraine say strong smells bother them, and studies on osmophobia (odor sensitivity in migraine) often list floral and perfume scents among the smells people avoid. So we left lavender out, along with synthetic fragrance. CROWN is lavender-free for scent-sensitive users.

CROWN is a topical product that you roll onto your skin. It isn’t a medicine and doesn’t replace anything your clinician has prescribed. If you take any medication, ask your clinician or pharmacist before adding CROWN to your routine, and bring the ingredient list with you.

Please talk to your clinician first. Several ingredients in CROWN, including peppermint, eucalyptus and camphor, are often flagged for caution during pregnancy and breastfeeding because the safety data is limited. CROWN is also not recommended for children under 2.

Up to 4 times a day. Roll a thin pass onto the temples, behind the ears, the back of the neck, or the shoulders whenever you want that cooling feeling. Avoid your eyes, mucous membranes, and broken skin. If your skin gets irritated, stop using it.

A 10 mL bottle holds roughly 60 to 80 applications, depending on how generously you use it. If you use CROWN a few times a week, one bottle usually lasts 1 to 2 months. Daily users may go through a bottle in 3 to 4 weeks.

Yes. The 10 mL bottle is well under the 100 mL carry-on liquid limit and fits in a standard quart bag.

No. CROWN contains no cannabinoids.

CROWN is manufactured at an ISO 9001-certified, FDA-registered facility. Each batch is tested for purity and potency. The formula was developed by Cerebral Torque, a migraine education platform.