Ingredients · Soothing and cica
Guaiazulene구아이아줄렌
What it is
A blue compound from the azulene family. Korean products sold as “azulene” (아줄렌) — toners, pads, gels and creams marketed for calming — list it on the ingredient list, sometimes with the amount in ppm. The Korean dictionary lists it as a colourant, a fragrance ingredient and a skin-conditioning agent.
On a Korean label
Written 구아이아줄렌; the front of the pack just says 아줄렌. Related names: 소듐구아이아줄렌설포네이트 (sodium guaiazulene sulfonate, a salt form), 캠아줄렌 (chamazulene — the blue compound in chamomile oil, formed when the flowers are steam-distilled) and 아줄렌 (azulene, the parent compound).
Korean rules
- Korea lists guaiazulene as an approved cosmetic colourant.
Related names on Korean labels
| Korean | English (INCI) | What it is |
|---|---|---|
| 소듐구아이아줄렌설포네이트 | Sodium Guaiazulene Sulfonate | sodium guaiazulene sulfonate — a salt form of guaiazulene |
| 캠아줄렌 | Chamazulene | chamazulene — the blue compound in chamomile oil |
| 아줄렌 | Azulene | azulene — the parent compound of the family |
Questions
What is 아줄렌 on a Korean label?
Azulene — a family of blue compounds. On the ingredient list look for 구아이아줄렌 (guaiazulene), 소듐구아이아줄렌설포네이트 or 캠아줄렌 (chamazulene, the one in chamomile oil).
Why are azulene products blue?
Guaiazulene and chamazulene are blue, and Korea lists guaiazulene as an approved cosmetic colourant.
Is 구아이아줄렌 the same as chamomile?
No. Chamomile oil’s blue compound is chamazulene (캠아줄렌); guaiazulene is a related blue compound. Some azulene products add chamomile extract as well.
Sources
- Korea Cosmetic Association — ingredient dictionary (대한화장품협회 성분사전)
- Standards and Test Methods for Cosmetic Colourants (화장품의 색소 종류와 기준 및 시험방법), as listed in the KCIA dictionary
- Altmeyer’s Encyclopedia — Matricariae aetheroleum (chamomile oil)
- Wikipedia — Chamazulene
Checked 27 October 2026. Rules change — the official texts above are the final word.