What a 4/5 rating means
On the comedogenic scale, a 4 is in the high-risk band, with a real likelihood of clogging pores on acne-prone skin. That means Laminaria Extract deserves attention if you break out easily, especially when it appears high on an ingredient list.
This rating is disputed. Credible sources land on different numbers for Laminaria Extract, so we publish the range (4) rather than a false single figure. When sources disagree this openly, your own experience carries real weight.
One thing the number cannot tell you is concentration. Ingredients are listed in descending order, so Laminaria Extract near the end of a label is present in tiny amounts and matters far less than the same ingredient near the top.
About Laminaria Extract
It is a marine or algae extract, marketed for minerals and antioxidants. Kelp-family (Laminaria) extracts are repeatedly named as pore-clogging in the high range on comedogenic lists.
On a label it can read as Laminaria, Laminaria Digitata Extract, Laminaria Saccharina Extract, Kelp — worth knowing when you scan an ingredient deck.
Laminaria Extract in makeup and skincare
It features in 'anti-ageing' serums, masks, and luxury complexion products. Its irritancy is rated separately at 2/5, which is low.
Lower-rated alternatives to Laminaria Extract
If you want a similar role with a friendlier comedogenic score, consider:
- Hyaluronic Acid — comedogenic rating 0/5 (Low risk).
- Niacinamide — comedogenic rating 0/5 (Low risk).