Cystoseira compressa powder
AKA “Compressed Seaweed Extract, Brown Algae Extract”
Synthetic
Ingredient Facts
Cystoseira compressa powder
AKA: Compressed Seaweed Extract, Brown Algae Extract
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Skin Conditioner
Marine
Synthetic
Clean
Cystoseira Compressa Powder is the dried, ground powder obtained from the alga, Cytoseira compressa, Fucaceae. Science: Process: Drying + Milling | Functions: Bleaching, Humectant, Skin Conditioning Safety Ratings: CIR: Safe as used
Form
Powder
State
Solid
See origin →
Functions
Bleaching
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks In Moisture
Traditional Use
The dried and powdered form of brown seaweed historically used in Mediterranean skincare rituals. Applied traditionally as a skin treatment for its mineral content and believed detoxifying properties.
Skin Types
●all-skin-types
Best For
Antioxidant Protection
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR