Symphytum officinale (Comfrey) Extract is a botanical extract derived from the leaves and/or roots of the comfrey plant, long recognized in traditional medicine for its tissue‑soothing, regenerative, and anti‑inflammatory properties. In skincare, comfrey extract is valued for its content of allantoin, rosmarinic acid, phenolic compounds, and mucilage, which support epidermal cell turnover, soothe irritation, and protect against oxidative stress—attributes that are beneficial in formulations targeting sensitive, dry, or environmentally stressed skin. Research demonstrates that comfrey extract can accelerate the visible regeneration of epidermal structures, improve differentiation of keratinocytes and corneocytes, and promote a more organized skin barrier, making it useful in comforting serums, soothing balms, and barrier repair products.

While scientific literature on Symphytum officinale extract in haircare is less extensive than skincare data, its soothing and conditioning actions may be applied in scalp treatments and hair therapeutic formulations. The extract’s anti‑inflammatory compounds can help calm scalp irritation, reduce redness, and support a healthier follicular environment, potentially aiding in manageability and hair texture improvement, especially in dry or sensitive scalps. Comfrey extract is also reported in some haircare product contexts to assist with moisture retention and strengthening, making it attractive for conditioners and scalp serums designed for delicate or compromised hair types.