What is Laminaria Extract?
Laminaria Extract (INCI name: Laminaria Digitata Extract) is a marine or algae-derived extract. Kelp-family (Laminaria) extracts are repeatedly named as pore-clogging in the high range on comedogenic lists.
You may see it on labels as Laminaria, Laminaria Digitata Extract, Laminaria Saccharina Extract, Kelp, so it can hide under more than one name in an ingredient list.
Where Laminaria Extract shows up
You'll most often find Laminaria Extract in anti-ageing serums, masks, and 'marine' or 'seaweed' branded skincare. Separately from clogging, its irritancy is rated 2/5 — low, so it's unlikely to sting or sensitise on its own.
Is Laminaria Extract bad for acne-prone skin?
On acne-prone skin, Laminaria Extract has a real chance of contributing to congestion. Check its position on the ingredient list before you worry — concentration changes everything.
Worth flagging: Laminaria Extract's rating is disputed. Credible sources land on different numbers, which is why we show a range rather than a single score — and why your own experience is the best tiebreaker.
Non-comedogenic alternatives
If you're avoiding Laminaria Extract, these lower-risk ingredients serve a similar role and are gentler on pore-prone skin:
- Hyaluronic Acid — rated 0/5 (Low risk).
- Niacinamide — rated 0/5 (Low risk).