Acetyl Hydroxyproline
CAS 33996-33-7 EC 251-780-6
L-Proline, 1 Acetyl-4-Hydroxy-
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details
Description
L-Proline, 1 Acetyl-4-Hydroxy-
Purpose
Function
HAIR CONDITIONING, HUMECTANT, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SKIN PROTECTING
Profile
Properties
Silicone
Silicone free
Compliance
Regulatory Status
EU
Permitted
Safety
EXCELLENT
US
Permitted
Absorptionlow
Sensitizationnone
MoSadequate
NOAEL200 mg/kg
ConcernNone
Verdict
Key structural amino acid in collagen with skin-conditioning, hair-conditioning, and antistatic functions; supports skin firmness and hydration; excellent safety profile as an endogenous molecule
US Note
No FDA restrictions for cosmetic use; standard amino acid with well-established safety profile
Assessment
Ratings
Reference