Japan cosmetic ingredient regulations
The Standards for Cosmetics include prohibited and restricted ingredient appendices.
- Regulator
- Ministry of Health, Labour and Welfare
- Source language
- Japanese; official English translation available
- Coverage version
- MHLW Standards for Cosmetics official English source and Japanese amendments checked for the imported snapshot
Official ingredient records
117 matching recordsTerephthalylidene dicamphor sulfonic acid
Japan Standards for Cosmetics: Terephthalylidene dicamphor sulfonic acid
CAS 92761-26-7 / 90457-82-2 · EC 410-960-6
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 10 10
Source:Appendix 4 section 2, entry 13 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Tetrahydroxybenzophenone
Japan Standards for Cosmetics: Tetrahydroxybenzophenone
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 10 10 0.050
Source:Appendix 4 section 2, entry 12 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Thianthol
Japan Standards for Cosmetics: Thianthol
CAS 135-58-0 · EC 205-202-4
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 0.80 0.80
Source:Appendix 3 section 2, entry 19 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Thioctic acid
Japan Standards for Cosmetics: Thioctic acid
CAS 1077-28-7 · EC 214-071-2
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 0.01 0.01
Source:Appendix 2 section 3, entry 2 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Thymol 0.050 0.050 ○(*2) Trichlorocarbanilide
Japan Standards for Cosmetics: Thymol 0.050 0.050 ○(*2) Trichlorocarbanilide
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): ○ 0.30 0.30
Source:Appendix 3 section 2, entry 20 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Trichlorohydroxydiphenylether (Triclosan)
Japan Standards for Cosmetics: Trichlorohydroxydiphenylether (Triclosan)
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Maximum amount per 100 g: 0.10
Source:Appendix 3 section 1, entry 11 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Tris-Biphenyl Triazine
Japan Standards for Cosmetics: Tris-Biphenyl Triazine
CAS 31274-51-8
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Maximum amount per 100 g: 10.0
Source:Appendix 4 section 1, entry 4 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Ubidecarenone
Japan Standards for Cosmetics: Ubidecarenone
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 0.03 0.03
Source:Appendix 2 section 3, entry 3 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Vinyl chloride monomer
Japan Standards for Cosmetics: Vinyl chloride monomer
The provisional English translation of the MHLW Standards for Cosmetics lists this material in Appendix 1.
Conditions: Prohibited material
Source:Appendix 1, entry 4 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Vitamin L1 and Vitamin L2
Japan Standards for Cosmetics: Vitamin L1 and Vitamin L2
The provisional English translation of the MHLW Standards for Cosmetics lists this material in Appendix 1.
Conditions: Prohibited material
Source:Appendix 1, entry 20 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Zinc pyrithione
Japan Standards for Cosmetics: Zinc pyrithione
CAS 13463-41-7 · EC 236-671-3
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 0.10 0.010 0.010
Source:Appendix 3 section 2, entry 24 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Zinc, ammonia and silver substituted zeolite(*4)
Japan Standards for Cosmetics: Zinc, ammonia and silver substituted zeolite(*4)
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 1.0 1.0
Source:Appendix 3 section 2, entry 1 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
o-Phenyl phenol
Japan Standards for Cosmetics: o-Phenyl phenol
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): ○ 0.30 0.30
Source:Appendix 3 section 2, entry 8 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
p-Aminobenzoic acid and its esters
Japan Standards for Cosmetics: p-Aminobenzoic acid and its esters
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Maximum amount per 100 g: 4.0 as total
Source:Appendix 4 section 1, entry 5 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
p-Chlorphenol
Japan Standards for Cosmetics: p-Chlorphenol
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 0.25 0.25
Source:Appendix 3 section 2, entry 21 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
p-Dimethylaminostyryl heptyl methyl thiazolium iodide
Japan Standards for Cosmetics: p-Dimethylaminostyryl heptyl methyl thiazolium iodide
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Published three-column use matrix (rinse-off / leave-on / mucosal; blank means prohibited, ○ means no upper limit): 0.0015 0.0015
Source:Appendix 3 section 2, entry 31 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
p-Oxybenzoic acid esters and their sodium salts
Japan Standards for Cosmetics: p-Oxybenzoic acid esters and their sodium salts
The provisional English translation of the MHLW Standards for Cosmetics lists this ingredient with the stated limit or use matrix.
Conditions: Maximum amount per 100 g: 1.0 as total
Source:Appendix 3 section 1, entry 12 · version MHLW Notification No. 331 provisional translation, retrieved 2026-08-30 · source checked 2026-08-30
Market coverage contract
Complete Standards appendices dataset- Included scope
- Prohibited ingredients, restricted ingredients and permitted preservative/UV/colourant appendices present in the official standard source.
- If no match is found
- The Japanese text and subsequent notices are canonical; no local match is not a product-compliance conclusion.
Complete verification checklist
- Search Japanese/English identity and CAS where present.
- Apply category and maximum-amount conditions.
- Check later MHLW notices against the Japanese source.
- Verify marketing licence, notification, labelling and quasi-drug classification.
Official sources and legal role
Japan MHLW Standards for Cosmetics
Prohibited and restricted ingredient appendices with concentration and use conditions
Legal meaning: Official MHLW standard; validate later Japanese updates before presenting current status
Available language: English translation; Japanese source remains canonical
What this market page can answer
Source and authority
Identify the official material and the regulator responsible for it: Ministry of Health, Labour and Welfare.
Language and scope
See whether usable English or bilingual material exists and what the mapped source actually covers. Current source language: Japanese; official English translation available.
Evidence status
Browse ingredient-level records imported from official sources. Each row states whether it passed deterministic source checks or human editorial review.
How to verify an ingredient for this market
- Search the ingredient by INCI name, CAS number or EC number and record the exact identity.
- Open each official source above and check the current version, product scope, concentration limits and required warnings.
- Confirm effective dates and whether an English text is official, reviewed or only contextual.
- Treat a missing local match as unknown, never as permission or a safety conclusion.