Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Comfrey for Scratches and Abrasions: Evidence Overview

Comfrey (Symphytum officinale) has a long history of use in traditional medicine for wound healing, including minor scratches and abrasions. Its use is not only traditional but also supported by a moderate body of scientific evidence.

Modern research has identified several active constituents in comfrey, such as allantoin, rosmarinic acid, and mucilage, which contribute to its purported healing effects. Allantoin, in particular, is known to promote cell proliferation and support tissue regeneration, making it beneficial for superficial skin injuries.

Clinical studies and reviews have evaluated topical comfrey preparations (creams, ointments, or gels) for their efficacy in treating minor wounds, abrasions, and inflammatory skin conditions. A 2013 systematic review published in Phytotherapy Research concluded that comfrey extract significantly accelerates wound healing and reduces symptoms like redness and swelling when compared with placebo. Another randomized controlled trial demonstrated improved healing rates of abrasions in participants using comfrey ointment versus control treatments.

However, comfrey contains pyrrolizidine alkaloids (PAs) that are hepatotoxic if absorbed systemically or ingested. As such, only PA-free topical products are recommended, and use should be limited to unbroken skin or superficial wounds to avoid absorption risks.

In summary, while traditional use is well established, there is also moderate scientific validation for comfrey's effectiveness in supporting the healing of scratches and abrasions when applied topically and appropriately.

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