Synthetic / Fermentation

Lysine

L-Lysine / 2

Safety Flags

Safety Notes

Hair care strengthening products serums

Function & Common Use

Function

6-Diaminohexanoic acid

Concentration Limits

India (CDSCO)

No limit

EU Cosmetics Reg.

US FDA (21 CFR)

No specific 21 CFR cosmetic limit identified in source checked; EU limit reference: No

Korea (MFDS)

No specific MFDS limit identified in source checked; verify if ingredient is used in a Korean functional cosmetic category

Format restriction: No limit

Baby restriction: Both

Pregnancy: No specific restriction identified in source checked; standard cosmetic use

Frequently Asked Questions

Is Lysine safe to use in skincare?

Lysine has a High concern rating. Hair care strengthening products serums

Is Lysine allowed in India?

Lysine is currently classified as "not specified" under Indian cosmetics regulations. No concentration limit is specified for India.

What is Lysine used for in cosmetics?

Lysine functions as: 6-Diaminohexanoic acid. It is commonly found in: None.

Is Lysine safe for babies?

Lysine has baby/child restrictions: Both. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.

TCS Assessment

Synthetic / Fermentation

Data Confidence

Medium

Based on peer-reviewed safety data, regulatory status, and expert review by The Clean Sheet panel.

Regulatory Status

India (CDSCO)

Low

US FDA

Permitted

Korea (MFDS)

Permitted

Australia (TGA)

Cosmetic ingredient; standard TGA cosmetic framework applies; no therapeutic goods listing required unless therapeutic claims are made

Canada (NHPID)

Not specifically listed as restricted cosmetic ingredient in NHPID source checked; standard Health Canada cosmetic notification applies

EU Annex: Permitted

Identifiers

CAS56-87-1

EC200-294-2

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