What it is
Cladonia stellaris extract is derived from a slow-growing arctic and boreal lichen commonly called reindeer lichen or reindeer moss. In cosmetic formulas it is included as a botanical skin-conditioning agent, often marketed for its content of lichen-derived compounds such as usnic acid and polysaccharides. It is typically present at low levels as a supporting or marketing-forward ingredient rather than a primary functional one.
Safety & warnings
Generally well tolerated at the low concentrations used in cosmetics. Lichen extracts can contain usnic acid, which is a recognized contact allergen and has been associated with allergic contact dermatitis in sensitized individuals, so patch testing is reasonable for those with known lichen or fragrance-related sensitivities.
Origin & sourcing
Natural; obtained from the fruticose lichen Cladonia stellaris, which grows in northern tundra and forest regions. Lichens are symbiotic organisms of fungi and algae, and the harvested thallus is processed into an extract for cosmetic use.
Questions everyone asks
What is reindeer lichen extract?
It is a botanical extract from the lichen Cladonia stellaris, used in skin care as a conditioning and antioxidant-type ingredient.
Is it the same as a moss?
No. Despite the common name reindeer moss, Cladonia stellaris is a lichen, a symbiotic organism of fungus and algae, not a true moss.