Curly Girl Method Status
Cysteine is classified as Approved in the Curly Girl Method. It belongs to the Amino Acids category within the Humectants group. This ingredient is considered safe for use in CG-compatible hair care routines.
Products Containing Cysteine (65)
CG Approved
oz Hair & Beauty
ANSWR
ANSWR At Home Keratin Treatment 100ml
CG Approved
oz Hair & Beauty
ANSWR
ANSWR At Home Keratin Treatment Kit
Warning
Superdrug
ANSWR
ANSWR At-Home Keratin Treatment
CG Approved
Sephora
ANSWR
At-Home Keratin Treatment Kit
CG Approved
Superdrug
Apis
APIS Gentle Shampoo for Hair of different porosity 300ml
CG Caution
Superdrug
Apis
APIS PICK'N'MIX build me up - Proteins & Emolient Hair Mask 250ml
Related Ingredients in Amino Acids
Frequently Asked Questions about Cysteine
Is Cysteine curly girl approved?
Yes! Cysteine is classified as Approved (ok) in the Curly Girl Method. It's safe to use in CG-compatible hair care routines.
What is Cysteine used for in hair products?
Cysteine belongs to the Amino Acids category in the Humectants group. It's a common ingredient found in various hair care formulations.
What products contain Cysteine?
Our database contains 65 products that list Cysteine in their ingredients. Browse the products section above to see their full CG analysis.