Korean: 적색106호 · Functions: colorant, hair dyeing
Restricted MFDS restricted ingredients
Conditions (official MFDS text, Korean):
* 배합한도 : 적용 후 바로 씻어내는 제품 및 염모용 화장품에만 사용
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 16, 2026
Restricted Annex III/193
Maximum: (b) 0.6%
Conditions: Product type: (a) Hair dye substance in oxidative hair dye products (b) Hair dye substance in non-oxidative hair dye products (a) After mixing under oxidative conditions the maximum concentration applied to hair must not exceed 1.5%.
Required label warning: a) To be printed on the label: The mixing ratio. “ Hair colourants can cause severe allergic reactions. Read and follow instructions. This product is not intended for use on persons under the age of 16. Temporary ‘black henna’ tattoos may increase your risk of allergy. Do not colour your hair if: — you have a rash on your face or sensitive, irritated and damaged scalp,— you have ever experienced any reaction after colouring your hair, — you have experienced a reaction to a temporary ‘black henna’ tattoo in the past.
Source: EU CosIng — Annex III · checked Oct 16, 2026
Approved colorant Annex IV/71
Conditions: Rinse-off products
Source: EU CosIng — Annex IV · checked Oct 16, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How CI 45100 is treated in 5 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.
| Market | Status | Conditions |
|---|---|---|
| AS ASEAN (10 countries) | Restricted | Field of application : Colouring agents allowed exclusively in cosmetic products intended to come into contact only briefly with the skin. |
| JP Japan | Restricted | MFDS summary (Korean): * 【제품 타입 또는 목적 (types or intended purposes of cosmetics)】 : 모든 의약품, 의약부외품, 화장품에 사용할 수 있는 색소 * 화장품용 타르 색소 : 이 성분의 알루미늄레이크 포함 |
| TW Taiwan | Restricted | MFDS summary (Korean): 1. 所列色素與非禁用成分形成之麗基（lakes）及鹽（salts）亦可使用。 2. 未列載於此表規定範圍之成分，於歐盟、美國及日本三國家地區，任何其中一個國家地區官方已公告（以生效日為準）其使用基準者，得參照其基準規定准予使用(但下表CI 11380 等十九項成分不適用)，惟於申請查驗登記時，應同時檢附該等地區之准許使用基準證明文件。 * 단서조항 : 1. 所列色素與非禁用成分形成之麗基（lakes）及鹽（salts）亦可使用。 2.... |
| BR Brazil | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : Dye Substances allowed exclusively in products that have short time of skin and hair contact. * 제한 【사용 범위】 : 피부나 머리에 장시간 닿지 않는 제품에 한해서만 허용된 염색 성분 |
| AR Argentina | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : Dye Substances allowed exclusively in products that have short time of skin and hair contact. * 제한 【사용 범위】 : 피부나 머리에 장시간 닿지 않는 제품에 한해서만 허용된 염색 성분 |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 16, 2026
Acid Red CI 45100
Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.