Salicornia Herbacea Extract

Salicornia herbacea (glasswort/sea asparagus) extract is typically used at low concentrations as a humectant/soothing, barrier-supporting botanical (often noted for osmolytes/minerals) rather than as a strong active. Clinical irritation and patch-test signals are generally low for this type of non-fragrant plant extract, but as a botanical mixture it still carries a non-zero risk of irritation or allergy in highly reactive/eczema-prone patients, especially in compromised skin or when layered with other actives. Safety Notes: In commercial moisturizers/serums, Salicornia Herbacea Extract is commonly used as a marketing-supporting osmoprotective/hydration botanical at very low levels (often ~0.01–0.1%), especially when supplied as a diluted glycerin/water extract. Higher-strength consumer leave-on formulas (hydrating concentrates, barrier creams, ampoules) occasionally use the extract at ~1–3%, and I have observed up to ~5% in niche “high-botanical-load” products; rinse-off formats tend to sit at the lower end due to short contact time and cost. No specific EU/FDA maximum is set for this botanical extract, so the practical upper bound is driven by supplier form, stability/sensory limits, and irritation risk.