KBeauty Verified™
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KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
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Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →

Cystine

Korean: 시스틴 · Functions: antistatic, fragrance, hair conditioning

KR South Korea (MFDS)

No specific rule on file.

EU European Union (CosIng)

No specific rule on file.

US United States (FDA)

No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.

Products listing Cystine

Amos Professional AMOS True Repair Essence 100ml Essence
0 1 0 0 0 0 0 1
Amos Professional AMOS True Repair Night Cream 180 ml Moisturizer
0 0 0 0 0 0 0 0
Amos Professional AMOS True Repair Shampoo 500 g Other
0 0 0 0 0 0 0 0
Amos Professional AMOS True Repair Treatment 200ml Other
0 0 0 0 0 0 0 0
Longtake Black tea & fig softening treatment 200ML Other
0 2 0 0 0 0 0 2
Missha Glow Pore Blurring Balm (40mL) Cleanser
0 2 0 0 0 0 0 2
Mise en Scene MiseEnScène Salon10 Professional Cica protein treatment 215ML Other
0 0 0 0 0 0 0 0
COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Shampoo Body
0 2 0 0 0 0 0 2
COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Treatment Body
0 2 0 0 0 0 0 2
La'dor Wonder Tear 250ml Other
0 2 0 0 0 0 0 2

Also listed as

Cystine 시스틴

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.

Frequently asked questions

Is Cystine banned in the European Union?

We found no specific rule for it in the EU's CosIng records. That is not an approval or a safety statement.

Is Cystine banned in South Korea?

We found no specific rule for it in Korea's MFDS records. That is not an approval or a safety statement.

Is Cystine allowed in cosmetics in the U.S.?

We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.

What is Cystine used for in cosmetics?

The EU's CosIng inventory lists its functions as: antistatic, fragrance, hair conditioning.

What is Cystine called on Korean labels?

Korea's MFDS standard Korean name is 시스틴.

Which K-beauty products contain Cystine?

10 products we checked list it, for example Amos Professional AMOS True Repair Essence 100ml, Amos Professional AMOS True Repair Night Cream 180 ml, Amos Professional AMOS True Repair Shampoo 500 g.

Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
Reading time:
Views: 0
ChatGPT: 2 Claude: 1 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0
Read by AI & crawlers
ChatGPT2
Claude1
Google · Gemini0
Perplexity0
Meta AI0
Amazon0
Others0

Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →