Crithmum Maritimum Callus Culture — INCI reference

What it is

Crithmum Maritimum Callus Culture consists of undifferentiated callus cells derived from Crithmum maritimum, the coastal halophyte plant also known as sea fennel or rock samphire. The callus is cultivated in sterile bioreactor conditions rather than harvested from wild plants. Key bioactives include chlorogenic acid and other polyphenols, sugars, minerals, vitamins B and C, and amino acids. Research in 3D skin models exposed to UV damage showed the extract can increase epidermal thickness, stimulate collagen synthesis, and upregulate skin barrier genes such as filaggrin, involucrin, and envoplakin. In cosmetic formulations it is used at 0.5–5% and commonly found in serums, brightening treatments, and repair essences.

Safety & warnings

No significant allergen or irritation concerns have been documented in the published literature for this ingredient at recommended use levels. It belongs to the Apiaceae (carrot/parsley) family; individuals with known sensitivities to other Apiaceae-derived ingredients may wish to perform a patch test. No comedogenicity data is available. Formulations are typically well tolerated at 0.5–5% in finished products.

Origin & sourcing

Derived from callus (undifferentiated stem cell tissue) of Crithmum maritimum, a perennial coastal plant in the carrot family (Apiaceae) native to the Mediterranean, Atlantic European, and Black Sea coastlines. Callus is initiated from a plant tissue explant, then grown in closed bioreactor systems using nutrient media, enabling production free from pesticides, heavy metals, and seasonal variability. Industrial-scale production uses countercurrent single-use bioreactors at up to 1,000 L capacity.

History

Crithmum maritimum has been used in traditional Mediterranean food and medicine since antiquity. Shakespeare referenced cliff-harvesting of the plant in King Lear. Modern plant cell culture biotechnology applied to sea fennel emerged in the early 21st century to create sustainable, standardized cosmetic actives. SEPPIC commercialized CELTOSOME Crithmum Maritimum as a skin-brightening and anti-aging active. The INCI name Crithmum Maritimum Callus Culture is registered in EU CosIng.

Questions everyone asks

What is a callus culture and how does it differ from a plant extract?

A callus culture uses dedifferentiated plant cells grown in sterile bioreactors rather than harvested plant parts. This approach produces a more consistent, contaminant-free supply of active compounds without impacting wild plant populations.

What skin benefits does Crithmum Maritimum Callus Culture provide?

It conditions and soothes skin, supports the skin barrier, provides antioxidant protection against UV and pollution-derived free radicals, and may help brighten the complexion by inhibiting melanogenesis. Research also shows it can stimulate collagen synthesis and upregulate barrier genes.

Is this ingredient sustainably produced?

Yes. Plant cell culture technology avoids wild harvesting of Crithmum maritimum and eliminates exposure to pesticides and heavy metals, making it a more sustainable and reproducible source of active compounds compared to conventional extraction.

Where does Crithmum maritimum naturally grow?

Sea fennel is a perennial halophyte native to rocky coastal cliffs, sandy shores, and marine-exposed areas along the Mediterranean Sea, Atlantic European coasts (including the British Isles and Brittany, France), the Black Sea, and parts of North Africa and West Asia.

Sources & references

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