Tris(Tetramethylhydroxypiperidinol) Citrate

AKA: 220410-74-2, 4-Piperidinol, 2-hydroxy-1, 2, 3-propanetricarboxylate (3:1) (salt), 3-propanetricarboxylate (3:1)

Synthetic

Sunscreen Filter

Chemical Exfoliant

Clean

4-Piperidinol, 1-Hydroxy-2,2,6,6-Tetramethyl -, 2-Hydroxy-1,2,3-Propanetricarboxylate (3:1) (salt)

Formula

C33H65N3O13

Mol. Weight

711.90

CAS #

220410-74-2

Form

Liquid

Functions

Uv Absorber

Blocks or absorbs UV rays to protect your skin from sun damage, dark spots, and premature aging.

Shields from UV damage

Traditional Use

A modern synthetic UV stabilizer and antioxidant developed for cosmetics and personal care products. Used to protect cosmetics from degradation and improve shelf stability.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

Sun Damage

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed3 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

Verified Jun 2026

Data: PubChem · CosIng · EWG · CIR