Ascophyllum Nodosum Extract

ASC

8/10

Concern level

High concern

Ascophyllum nodosum extract is a brown seaweed-derived cosmetic ingredient typically used for skin conditioning, soothing, antioxidant support, and a temporary firming or smoothing feel. It is a heterogeneous botanical extract rich in polysaccharides and trace marine constituents, so exact composition varies by supplier and extraction process. In topical skincare it is primarily a functional botanical rather than a strong pharmacologic active.

Pore-clogging

Non-comedogenic

Pregnancy

Safe

Regulatory

No data

Benefits

Firming EffectHealingMoisturizingSoothing

Chemical Properties

pH Range

4.00 - 7.50

Typical Concentration

0.10% - 5.00%

CAS Number: 84775-78-0

Skin Type Compatibility

dry skin7/10

oily skin6/10

sensitive skin6/10

acne prone6/10

mature skin8/10

normal skin8/10

Interactions

incompatible with: Avoid relying on strong acids or highly acidic processing conditions if the supplier specifies acid instability., Use caution in products with other known sensitizers if formulating for reactive skin.

Risks & Warnings

Generally well tolerated topically, but botanical variability can affect irritation potential. Possible concerns include sensitivity in very reactive skin, and a theoretical issue with iodine- or trace-metal-rich seaweed extracts if raw material quality is poor. Avoid if you have a known seaweed allergy. Discontinue if irritation occurs.

Vegan Cruelty-Free