Korean: 스트론튬하이드록사이드 · CAS 18480-07-4 · Functions: buffering
No specific rule on file.
Restricted Annex III/63
Maximum: 3.5% (as strontium)
Conditions: Product type: pH-adjuster for depilatories pH
Required label warning: Keep out of reach of children Avoid contact with the eyes
Source: EU CosIng — Annex III · checked Oct 17, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How Strontium Hydroxide is treated in 4 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 |
|---|---|---|
| CN China | Restricted | MFDS summary (Korean): * 【제한】 적용 및 사용범위 : 탈모제품의 pH조절약 * 【화장품 중 최대사용농도】 배합한도 (일반) : 3.5%(스트론튬으로 계산) * 기타 제한조건 및 요구사항 : pH≤12.7 * 라벨에 반드시 표기해야하는 사용조건과 주의사항 : 어린이의 손에 닿지 않게 보관 : 눈 부위 사용 금지 |
| AS ASEAN (10 countries) | Restricted | MFDS summary (Korean): * 【Restrictions】 Field of application and/or use : pH-regulator in depilatory products * 제한 【사용 범위】 : 제모제에서 pH 조절제로 * 【Restrictions】 Maximum authorised concentration in the finished cosmetic product : 3.5% calculated as strontium, max pH of 12.7 * 제한 【완제품에서 허용된 최대 농도】 : 최대 pH 12.7의 스트론튬으로서... |
| BR Brazil | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : For pH adjustment in depilatories. * 제한 【사용 범위】 : 제모제의 pH 조정제로 * Restrictions 【Maximum concentration permitted at final product】 : 3.5% calculated as strontium to pH = 12.7 * 제한 【완제품에서 허용된 최대 농도】 : pH =12.7의 스트론튬으로서 계산했을 때 3.5% * Use... |
| AR Argentina | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : For pH adjustment in depilatories. * 제한 【사용 범위】 : 제모제의 pH 조정제로 * Restrictions 【Maximum concentration permitted at final product】 : 3.5% calculated as strontium to pH = 12.7 * 제한 【완제품에서 허용된 최대 농도】 : pH =12.7의 스트론튬으로서 계산했을 때 3.5% * Use... |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
STRONTIUM HYDROXIDE 스트론튬하이드록사이드
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.
In the EU's CosIng records it is listed as “Restricted” (EU CosIng — Annex III). The maximum allowed is 3.5% (as strontium). A restricted ingredient is allowed within the stated conditions.
We found no specific rule for it in Korea's MFDS records. That is not an approval or a safety statement.
We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.
The EU's CosIng inventory lists its functions as: buffering.
Korea's MFDS standard Korean name is 스트론튬하이드록사이드.
CAS 18480-07-4 (from official records).