Dictyopteris Membranacea is an extract derived from a species of brown seaweed, used in cosmetics for its antioxidant, skin-conditioning, and purported sebum-regulating properties. It is rich in polysaccharides, minerals, and fatty acids that may support skin hydration and barrier function.
| Reported effect | How often | Notes |
|---|---|---|
Contact irritation (redness, stinging) | Rare | Possible in sensitive skin, typically mild and transient. |
Allergic contact dermatitis | Very rare | Hypersensitivity to marine/algae-derived components has been occasionally reported. |
Iodine-related sensitivity | Very rare | Seaweed extracts can contain iodine; relevant only for highly sensitive individuals. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.