Hydrolyzed Carrageenan
AKA “Carrageenan Hydrolysate, Carrageenan Extract
Synthetic
Ingredient Facts
Hydrolyzed carrageenan
AKA: Carrageenan Hydrolysate, Carrageenan Extract
Synthetic · Humectant · EWG: 3
Synthetic
Humectant
Occlusive
Skin Conditioner
Marine
Synthetic
Clean
A seaweed-derived ingredient that helps hydrate and soften skin, leaving it feeling smooth and supple.
CAS #
53973-98-1
Form
Powder
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Locks in moisture
Traditional Use
Carrageenan is derived from red algae and has been used traditionally in Irish and Northern European cuisine and folk medicine for centuries. Hydrolyzed carrageenan is a modern extraction developed to provide polysaccharides for improved texture and conditioning in cosmetics.
Skin Types
all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
3
CIR
Safe w/Qualifications
Pregnancy
Yes
CIR Safety Findings
all-shades-safe
Potential Sensitizer
Concentration Guide
Dermal absorption: 2%. Source: CIR Safety Assessment (CIR Seq 157).
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR