The Ingredient Library · Ingredient · Hveragerði, Iceland

Sea Fennel

Crithmum Maritimum Extract

A cliff-dwelling coastal plant for visibly smoother, more radiant skin.

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INCI nameCrithmum Maritimum Extract
TypeCoastal botanical — renewing & smoothing
OriginHveragerði, Iceland
Key benefitVisibly smoother, fresher-looking skin
SuitsAll skin types, especially dull, tired or mature skin
Sea Fennel

What is this

Sea Fennel

Sea fennel is a hardy coastal plant, Crithmum maritimum, that grows wild on rocky Mediterranean cliffs. In skincare, its extract is used as a revitalising botanical that helps support the skin's natural renewal, visibly smoothing texture and promoting a fresher, more radiant look.

Obtained from Crithmum maritimum, a resilient coastal plant that thrives on sun-battered Mediterranean cliffs, sea fennel extract is a botanical active prized for its revitalising and smoothing properties. Naturally rich in vitamin C, flavonoids and minerals absorbed from its marine environment, it helps support the skin's natural renewal, visibly refining texture and promoting a fresher, more luminous appearance. Often described as a gentle plant-based alternative to retinol, it helps improve the look of fine lines and uneven tone while remaining well tolerated. Ideal for dull, tired or mature skin seeking renewed radiance and comfort.
Hveragerði, Iceland

Where is it found

Hveragerði, Iceland

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In which products

Formulas with sea fennel

Every ingredient in our library serves one measure of success — skin longevity — the years skin keeps its strength, moisture and evenness.

Questions about sea fennel

What is sea fennel?

Sea fennel, or rock samphire, is Crithmum maritimum — a resilient aromatic plant that grows wild on rocky Mediterranean sea cliffs, thriving in salt spray and sun. In skincare its extract is prized as a revitalising botanical that helps skin look smoother, fresher and more luminous.

What does sea fennel do for your skin?

Sea fennel extract helps support the skin's natural renewal. Naturally rich in vitamin C, flavonoids and minerals from its marine environment, it is used to visibly refine texture, support the look of elasticity and lend dull or tired skin a fresher, more radiant appearance.

Is sea fennel a natural alternative to retinol?

It is often described that way. Formulators value sea fennel for promoting a smoother, more even-looking surface with excellent tolerance, which is why it appears in gentle renewal formulas. The comparison is cosmetic — it supports the look of refined, radiant skin gradually, over time.

Is sea fennel good for sensitive skin?

Yes — it is generally well tolerated and often chosen precisely for skin that finds stronger renewing actives uncomfortable. As with any new skincare, those with very reactive skin may wish to introduce it gradually and observe how their skin responds.